Mitsumi Electric Co., Ltd.

Japan

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IPC Class
H04N 5/225 - Television cameras 125
G03B 5/00 - Adjustment of optical system relative to image or object surface other than for focusing of general interest for cameras, projectors or printers 92
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries 92
H04N 5/232 - Devices for controlling television cameras, e.g. remote control 83
G02B 7/04 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification 75
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1.

ELECTRICAL CONNECTOR AND METHOD FOR MANUFACTURING ELECTRICAL CONNECTOR

      
Application Number 18199904
Status Pending
Filing Date 2023-05-19
First Publication Date 2023-11-30
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Okamoto, Tsubasa
  • Tsutsui, Takaki

Abstract

An electrical connector includes an insulating housing, which is equipped with a base section, a tongue-shaped section, multiple accommodation concave sections formed on the tongue-shaped section, and multiple protrusion sections extending from tip surfaces of the multiple accommodation sections toward a base end side, and multiple contacts, which are held on the tongue-shaped section of the housing so as to be arranged on a contact plane and extend linearly along an insertion/removal direction of a mating connector. Respective tip sections of the multiple contacts are located within the multiple accommodation concave sections, and the multiple protrusion sections are in contact with the tip sections of the multiple contacts. The multiple contacts are not bonded to the tongue-shaped section of the housing.

IPC Classes  ?

  • H01R 13/405 - Securing in non-demountable manner, e.g. moulding, riveting
  • H01R 13/504 - Bases; Cases composed of different pieces different pieces being moulded, cemented, welded, e.g. ultrasonic, or swaged together
  • H01R 43/18 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing bases or cases for contact members

2.

OPTICAL GAS SENSOR DEVICE

      
Application Number JP2023016399
Publication Number 2023/210674
Status In Force
Filing Date 2023-04-26
Publication Date 2023-11-02
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Okamoto Mitsuhiro
  • Ehara Masato
  • Nakamura Akira
  • Furukawa Kenichi

Abstract

The present invention improves the accuracy of detection of a gas being detected, by freely forming an optical path in three dimensions. An optical gas sensor device 100 comprises: a light source 2 that emits infrared radiation to a gas being detected; an optical filter 3 that transmits infrared radiation having a wavelength corresponding to the absorption wavelength of the gas being detected; a light receiving unit 4 that detects infrared radiation incoming through the optical filter 3 and generates a detection signal; and a cover 1 that covers the light source 2, the optical filter 3, and the light receiving unit 4. The cover 1 has a light guiding part 13 that guides the infrared radiation incoming from the light source 2 by reflections on the inner surface thereof to the light receiving unit 4 through the optical filter 3, has a pipe shape, and has a circular or oval cross-section perpendicular to the axial direction thereof.

IPC Classes  ?

  • G01N 21/61 - Non-dispersive gas analysers
  • G01N 21/359 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light

3.

DIRECT CURRENT POWER SUPPLY APPARATUS

      
Application Number 18298423
Status Pending
Filing Date 2023-04-11
First Publication Date 2023-10-12
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Tabuchi, Hitoshi
  • Tochitani, Koji
  • Mishima, Takehito

Abstract

A direct current power supply apparatus that converts direct current input voltage supplied from a direct current power supply and that outputs a direct current voltage at a different potential is shown. The apparatus includes a switching power supply apparatus and a current stabilizing circuit connected at a stage before or after the switching power supply apparatus. The switching power supply apparatus includes, an oscillating circuit in which a frequency is variable and that generates an oscillating signal to apply a switching frequency, and an oscillating control circuit that generates an oscillating control voltage or an oscillating control current that changes the frequency of the oscillating circuit to the frequency longer than the switching frequency.

IPC Classes  ?

  • H02M 3/158 - Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
  • H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion

4.

OPTICAL ELEMENT DRIVING APPARATUS, CAMERA MODULE, AND CAMERA-MOUNTED APPARATUS

      
Application Number 18127022
Status Pending
Filing Date 2023-03-28
First Publication Date 2023-10-05
Owner Mitsumi Electric Co., Ltd. (Japan)
Inventor
  • Sugawara, Masayoshi
  • Kumagai, Kugo

Abstract

The optical element driving apparatus includes: a fixing part; a movable part allowing an optical element to be held therein; a plurality of support members supporting the movable part with respect to the fixing part; and a driving part that moves the movable part in a direction of an optical axis. The plurality of support members is formed of an elastic resin material, and each of the plurality of support members includes a movable-side connection part, which is connected to the movable part, and a fixed-side connection part, which is connected to the fixing part. A plurality of the movable-side connection parts and a plurality of the fixed-side connection parts are alternately arranged in a circumferential direction around the optical axis.

IPC Classes  ?

  • G03B 13/36 - Autofocus systems
  • G03B 5/00 - Adjustment of optical system relative to image or object surface other than for focusing of general interest for cameras, projectors or printers

5.

OPTICAL GAS SENSOR DEVICE, GAS DETECTION METHOD, AND PROGRAM

      
Application Number JP2023010227
Publication Number 2023/189637
Status In Force
Filing Date 2023-03-16
Publication Date 2023-10-05
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor Nakamura Akira

Abstract

The present invention ensures the accuracy of gas detection and achieves simplified device configuration. An optical gas sensor device 100 comprises: a light source 2 that emits infrared rays to gas G being detected; an optical filter 3 that transmits rays having a wavelength corresponding to the absorption wavelength of the gas G being detected; a light receiving unit 4 that detects infrared rays incoming through the optical filter 3 and generates a detection signal; and a signal processing unit 5 that calculates, from the detection signal, the gas concentration of the gas G being detected or a value corresponding to the gas concentration, compares the calculated gas concentration or value corresponding to the gas concentration against a preset threshold value, and determines the state of the optical gas sensor device 100 according to the result of the comparison.

IPC Classes  ?

  • G01N 21/3504 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
  • G01N 21/61 - Non-dispersive gas analysers

6.

OPTICAL GAS SENSOR DEVICE

      
Application Number JP2023010228
Publication Number 2023/189638
Status In Force
Filing Date 2023-03-16
Publication Date 2023-10-05
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Itatani Haruki
  • Nakamura Akira
  • Yamabayashi Tomoaki

Abstract

An object is to improve the electromigration resistance and stress migration resistance of a light source. This optical gas sensor device includes: a light source 2 that emits infrared rays to a gas to be detected; an optical filter that transmits infrared rays having a wavelength corresponding to the absorption wavelength of the gas to be detected; and a light receiving unit that detects infrared rays incident thereon through the optical filter and generates a detection signal. The light source 2 includes: a Si substrate 211; a light source layer 221 provided on the Si substrate 211 and emitting infrared rays; electrodes 231 and 232 electrically connected to the light source layer 221 and supplying current to the light source layer 221; a protective layer 214 provided on the surface of the light source 2; and an electrode support layer 213 that supports the electrodes 231 and 232 and consists of an insulator that has a smaller difference in thermal expansion coefficient with the electrodes than the difference in thermal expansion coefficient between the protective layer 214 and the electrodes 231 and 232.

IPC Classes  ?

  • G01N 21/61 - Non-dispersive gas analysers
  • G01N 21/3504 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis

7.

OPTICAL ACTUATOR, CAMERA MODULE, AND CAMERA-MOUNTED DEVICE

      
Application Number 18112631
Status Pending
Filing Date 2023-02-22
First Publication Date 2023-09-14
Owner Mitsumi Electric Co., Ltd. (Japan)
Inventor
  • Takimoto, Yukihiro
  • Kikuchi, Atsushi
  • Hayashi, Ichiro
  • Kimura, Yoshihiro

Abstract

An optical actuator is an optical actuator configured to move an optical element by a driving part, and includes a movable-side member including a base portion configured to hold the optical element, and a fixed-side member configured to support the movable-side member such that the movable-side member is movable, in which the movable-side member includes a cushioning member that is engaged with the base portion to be prevented from coming off.

IPC Classes  ?

  • G02B 27/64 - Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
  • G02B 7/08 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
  • G03B 13/36 - Autofocus systems
  • G03B 5/06 - Swinging lens about normal to the optical axis

8.

OPTICAL ELEMENT DRIVING DEVICE, CAMERA MODULE, AND CAMERA-MOUNTED DEVICE

      
Application Number 18118162
Status Pending
Filing Date 2023-03-07
First Publication Date 2023-09-14
Owner Mitsumi Electric Co., Ltd. (Japan)
Inventor
  • Osaka, Tomohiko
  • Suzuki, Shun
  • Wang, Meng

Abstract

An optical element driving device driving an optical element in the optical path direction includes: a holding part capable of holding the optical element; an housing part that surrounds a circumference of the holding part and houses the holding part; and inside the housing part, a support part including a first support part and a second support part disposed on the circumference at different positions, and supports the holding part to be movable in the optical path direction by pressing the holding part by the first support part and engaging the second support part with the holding part in accordance with the pressing. The support part is configured to allow adjustment of an engagement position between the second support part and the holding part by relatively displacing facing portions of the second support part and the holding part in a circumferential direction according to the pressing.

IPC Classes  ?

  • G03B 13/36 - Autofocus systems
  • G03B 30/00 - Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles

9.

OPTICAL ACTUATOR, CAMERA MODULE, AND CAMERA-MOUNTED DEVICE

      
Application Number 18114257
Status Pending
Filing Date 2023-02-26
First Publication Date 2023-09-14
Owner Mitsumi Electric Co., Ltd. (Japan)
Inventor
  • Takimoto, Yukihiro
  • Kikuchi, Atsushi
  • Hayashi, Ichiro
  • Kimura, Yoshihiro

Abstract

An optical actuator is an optical actuator configured to move an optical element by a driving part, and includes a movable-side member configured to hold the optical element, a fixed-side member configured to support the movable-side member such that the movable-side member is movable, and a cushioning member disposed on the movable-side member, in which the cushioning member includes a first cushioning surface and a second cushioning surface that face the fixed-side member at respective different distances.

IPC Classes  ?

  • G03B 5/00 - Adjustment of optical system relative to image or object surface other than for focusing of general interest for cameras, projectors or printers
  • G03B 17/12 - Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets

10.

HIGH-FREQUENCY CIRCUIT AND FILTER CIRCUIT

      
Application Number 18167965
Status Pending
Filing Date 2023-02-13
First Publication Date 2023-09-14
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor Oba, Kimiyuki

Abstract

A high-frequency circuit includes a signal wire connecting a pair of signal terminals; and a reference potential wire arranged along and close to the signal wire and connecting a pair of reference potential terminals.

IPC Classes  ?

  • H03H 9/56 - Monolithic crystal filters
  • H03H 9/205 - Constructional features of resonators consisting of piezoelectric or electrostrictive material having multiple resonators

11.

FILM BULK ACOUSTIC RESONATOR AND METHOD OF MAKING FILM BULK ACOUSTIC RESONATOR

      
Application Number 18177966
Status Pending
Filing Date 2023-03-03
First Publication Date 2023-09-14
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor Sudo, Yasuyuki

Abstract

The present invention provides a technique for making a film bulk acoustic resonator with ease, at low cost. A film bulk acoustic resonator, according to one aspect of the present disclosure has: a substrate having a first main surface; an oxide film provided over the first main surface; and a laminated film provided over the oxide film and including a first electrode, a piezoelectric layer, and a second electrode laminated in this order, and, in this film bulk acoustic resonator, a void where the oxide film is removed is provided between the substrate and the first electrode, and the piezoelectric layer has a through-hole that communicates with the void.

IPC Classes  ?

  • H03H 9/17 - Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
  • H03H 3/02 - Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks

12.

PIEZOELECTRIC FILTER

      
Application Number 18178807
Status Pending
Filing Date 2023-03-06
First Publication Date 2023-09-14
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Wakasugi, Takahiro
  • Sudo, Yasuyuki

Abstract

A technique is provided herein whereby the size of piezoelectric filters can be reduced. A piezoelectric filter according to one aspect of the present disclosure has: a first substrate having a first main surface; a second substrate having a second main surface facing the first main surface; and a ladder circuit of Nth order, including N piezoelectric resonators, N being an integer of 3 or greater. In this piezoelectric filter, the first-order to Mth-order piezoelectric resonators included in the ladder circuit are formed on the first main surface, M being an integer from 1 to N−1, inclusive, and the (M+1)th-order to Nth-order piezoelectric resonators included in the ladder circuit are formed on the second main surface.

IPC Classes  ?

13.

SECONDARY BATTERY PROTECTION APPARATUS AND BATTERY PACK

      
Application Number 18146689
Status Pending
Filing Date 2022-12-27
First Publication Date 2023-09-07
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Watanabe, Yohei
  • Takeda, Takashi
  • Takeshita, Junji
  • Suzuki, Daisuke

Abstract

A secondary battery protection apparatus includes a temperature sensitive element having a characteristic value that varies in accordance with a change in temperature of a secondary battery. The secondary battery protection apparatus includes a switching circuit provided in a charge-and-discharge path between a secondary battery and an external device. The secondary battery protection apparatus includes a secondary battery protection circuit configured to control charge and discharge using the switching circuit to protect the secondary battery from temperature. The secondary battery protection circuit includes a comparison circuit configured to compare a voltage against a threshold voltage, the voltage corresponding to the change in the temperature of the secondary battery. The secondary battery protection circuit includes a conversion circuit that is controlled such that a first input of the comparison circuit is electrically coupled to a first terminal of the secondary battery protection circuit.

IPC Classes  ?

  • H01M 10/44 - Methods for charging or discharging
  • H02J 7/04 - Regulation of the charging current or voltage
  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
  • H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte

14.

ROTARY RECIPROCATING DRIVE ACTUATOR

      
Application Number 18195957
Status Pending
Filing Date 2023-05-11
First Publication Date 2023-09-07
Owner Mitsumi Electric Co., Ltd. (Japan)
Inventor
  • Takahashi, Yuki
  • Kagami, Masaharu
  • Kitamura, Yasutaka

Abstract

A rotary reciprocating drive actuator which includes a base portion including a bottom portion, and a pair of wall portions erected from both ends of the bottom portion; a movable body including a shaft portion rotatably supported by the pair of the wall portions via a bearing in such a manner that a movable magnet disposed at an outer side surface of one wall portion of the pair of the wall portions; and a drive unit including a core body and a coil body, the drive unit being attached to the outer side surface of the one wall portion, wherein another wall portion of the pair of wall portions is configured to be detachable from or adjustable in position with respect to the bottom portion.

IPC Classes  ?

  • H02K 33/18 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
  • H02K 33/12 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moving in alternate directions by alternate energisation of two coil systems

15.

LENS DRIVING DEVICE, CAMERA MODULE, AND CAMERA-EQUIPPED DEVICE

      
Application Number 18017888
Status Pending
Filing Date 2021-06-24
First Publication Date 2023-08-31
Owner Mitsumi Electric Co., Ltd. (Japan)
Inventor
  • Osaka, Tomohiko
  • Suzuki, Shun

Abstract

This lens driving device comprises a movable part, a driving part that has an ultrasonic motor and drives the movable part in the direction of an optical axis, and a shaft part that extends in the direction of the optical axis and supports the movable part. The driving part has a move section that is supported by the shaft part so as to be movable in the direction of the optical axis, and a support section that is connected to the move section and supports the movable part at a position closer to the optical axis side than the shaft part.

IPC Classes  ?

  • G02B 7/00 - Mountings, adjusting means, or light-tight connections, for optical elements
  • H02N 2/02 - Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners
  • G03B 17/12 - Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets

16.

POWER SUPPLY CONTROL SEMICONDUCTOR DEVICE AND POWER SUPPLY DEVICE

      
Application Number 18166060
Status Pending
Filing Date 2023-02-08
First Publication Date 2023-08-24
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Ohba, Yusuke
  • Nishio, Naoya
  • Tsuzurabara, Koji
  • Matsuda, Hiroki

Abstract

A power supply control semiconductor device that generates and outputs a drive pulse to turn on and off a switch, which is configured to intermittently supply a current to a primary winding of a voltage conversion transformer, in response to input of a voltage proportional to the current flowing through the primary winding of the voltage conversion transformer and an output voltage detection signal from a secondary side of the voltage conversion transformer is provided. The power supply control semiconductor device is in a no-lead resin-sealed package. The package includes external terminals including a first terminal as an input terminal, a second terminal provided next to the first terminal, and third terminals that have a lower breakdown voltage relative to the first terminal and are different from the second terminal. An interval between the first terminal and the second terminal is wider than each interval between the third terminals.

IPC Classes  ?

  • H02M 3/00 - Conversion of dc power input into dc power output
  • H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
  • H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement
  • H01L 23/495 - Lead-frames

17.

ELECTRICAL CONNECTOR AND ELECTRONIC DEVICE

      
Application Number 18304230
Status Pending
Filing Date 2023-04-20
First Publication Date 2023-08-17
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Kawasaki, Takashi
  • Sadohara, Hiroyuki
  • Mizue, Taro

Abstract

An electrical connector contains a first contact group arranged on a first contact plane, a second contact group arranged on a second contact plane and a ground plate located on a ground plane. The ground plate is located between horizontally extending portions of the contacts of the first contact group and horizontally extending portions, downwardly extending portions and terminal portions of the contacts of the second contact group in addition to between contacting portions and the horizontally extending portions of the contacts of the first contact group and contacting portions and the horizontally extending portions of the contacts of the second contact group.

IPC Classes  ?

  • H01R 13/6471 - Means for preventing cross-talk by special arrangement of ground and signal conductors, e.g. GSGS [Ground-Signal-Ground-Signal]
  • H01R 13/52 - Dustproof, splashproof, drip-proof, waterproof, or flameproof cases

18.

OPTICAL-ELEMENT DRIVING DEVICE, CAMERA MODULE AND CAMERA-MOUNTED DEVICE

      
Application Number 17907410
Status Pending
Filing Date 2021-03-30
First Publication Date 2023-07-13
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor Sugawara, Masayoshi

Abstract

An optical-element driving device includes: a holding groove formed in a first fixing part to hold a first supporting part; and a first biasing part including an elastic member and a spacer that are disposed with the first supporting part in the holding groove. The first biasing part biases the first supporting part toward a first movable part by the elastic member via the spacer. The first supporting part includes a pair of ball rows arranged at an interval from each other outside of the first movable part. Each ball row is parallel to an optical axis. The ball rows being held respectively by different ones of a plurality of the holding grooves. The first biasing part biases one of the ball rows obliquely with respect to a formation direction in which one of the holding grooves for holding another one of the ball rows is formed.

IPC Classes  ?

  • H04N 23/68 - Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
  • H04N 23/55 - Optical parts specially adapted for electronic image sensors; Mounting thereof
  • H04N 23/52 - Elements optimising image sensor operation, e.g. for electromagnetic interference [EMI] protection or temperature control by heat transfer or cooling elements

19.

INSULATED POWER SUPPLY APPARATUS

      
Application Number 18068549
Status Pending
Filing Date 2022-12-20
First Publication Date 2023-06-22
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Takehana, Hiroaki
  • Hyugaji, Takumi

Abstract

An insulated power supply apparatus includes, a transformer; a switching element connected in series with a primary side winding of the transformer; an active clamp circuit connected between terminals of the primary side winding of the transformer; and a power supply control semiconductor device. The switching element includes a field effect transistor and a current-voltage conversion element is connected between a source terminal of the switching element and a grounding point. The power supply control semiconductor device includes the following, a first external terminal in which voltage according to a drain side of the switching element is input, a second external terminal in which voltage converted by the current-voltage conversion element is input, an on/off control circuit that performs turn-on and turn-off of the switching element, and a ZVS determining circuit that determines whether zero voltage switching control is performed.

IPC Classes  ?

  • H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
  • H02M 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters

20.

OPTICAL ELEMENT DRIVING DEVICE, CAMERA MODULE, AND CAMERA-EQUIPPED DEVICE

      
Application Number 17995993
Status Pending
Filing Date 2021-03-24
First Publication Date 2023-06-15
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Suzuki, Shun
  • Osaka, Tomohiko

Abstract

This optical element driving device is provided with: a movable part capable of holding an optical element; a driving part that includes an ultrasonic motor and drives the movable part; a voltage boosting part having an inductor that boosts input voltage inputted to the driving part and supplies the boosted input voltage to the ultrasonic motor; a position detection part that detects the position of the movable part; and a substrate part on which the position detection part and the voltage boosting part are disposed.

IPC Classes  ?

21.

DC-DC CONVERTER, SEMICONDUCTOR INTEGRATED CIRCUIT THAT CONTROLS POWER SUPPLY, AND POWER SUPPLY DEVICE

      
Application Number 17998937
Status Pending
Filing Date 2021-04-23
First Publication Date 2023-06-08
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Mishima, Takehito
  • Sato, Akira
  • Ohara, Tomomitsu

Abstract

A DC-DC converter that converts a DC input voltage supplied from a DC power supply and that outputs a DC voltage with a different potential is shown. The DC-DC converter includes the following. A control circuit controls a switching element in accordance with a potential difference between a feedback voltage proportional to an output voltage and a predetermined reference voltage. A current supply circuit that causes a predetermined current to flow. A voltage correction circuit that corrects the reference voltage or the feedback voltage. The voltage correction circuit is configured to determine a voltage correction amount, based on information about a resistance on a load side input from outside when a current of the current supply circuit is output, and correct the reference voltage or the feedback voltage.

IPC Classes  ?

  • H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
  • H02M 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters

22.

SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE

      
Application Number 18054164
Status Pending
Filing Date 2022-11-10
First Publication Date 2023-05-18
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor Takano, Yoichi

Abstract

Disclosed is a semiconductor integrated circuit device including: a switching transistor; a terminal to receive a control signal from outside; and a control circuit that controls the switching transistor based on the control signal. The control circuit includes: a reference voltage source that generates a reference voltage from the DC voltage; a differential amplifier to receive the reference voltage and a voltage of the voltage output terminal, and output a voltage applied to a control terminal of the switching transistor; and a logic circuit that generates a signal to control an operation state of the differential amplifier based on the control signal. According to an output signal of the logic circuit, the differential amplifier controls the switching transistor to be on in response to the control signal being a first logic level, and to be off in response to the control signal being a second logic level.

IPC Classes  ?

  • H03F 3/72 - Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
  • H03F 3/45 - Differential amplifiers

23.

PUSH SWITCH

      
Application Number 18155624
Status Pending
Filing Date 2023-01-17
First Publication Date 2023-05-18
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Fujimoto, Daiki
  • Kikuchi, Hidetake

Abstract

A push switch contains a circuit substrate, two fixed contacts disposed on the circuit substrate, a dome-shaped spring which is disposed above the two fixed contacts and can be displaced between a first position in which the two fixed contacts are in a non-conductive state and a second position in which the two fixed contacts are in a conductive state and a conductive elastic member disposed on a surface of the dome-shaped spring facing the circuit substrate and having a surface facing the two fixed contacts. At least the surface of the conductive elastic member facing the two fixed contacts has conductivity. When the dome-shaped spring is displaced to the second position, the two fixed contacts are in the conductive state through the conductive elastic member.

IPC Classes  ?

  • H01H 13/48 - Snap-action arrangements depending upon deformation of elastic members using buckling of disc springs
  • H01H 13/702 - Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
  • H01H 13/14 - Operating parts, e.g. push-button

24.

Semiconductor device and method for manufacturing semiconductor device

      
Application Number 18146669
Grant Number 11769823
Status In Force
Filing Date 2022-12-27
First Publication Date 2023-05-04
Grant Date 2023-09-26
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Yatago, Masatoshi
  • Shiraishi, Naohiro
  • Kondo, Katsunori
  • Watanabe, Noriyoshi

Abstract

A semiconductor device includes first and second trenches, and a first layer provided therebetween, in a principal surface of a semiconductor substrate, a second layer in contact with and sandwiching the first trench with the first layer, a third layer provided under the second layer and in contact with the second layer and the first trench, a fourth layer provided under and in contact with the third layer but separated from the first trench, and a fifth layer provided in the principal surface and sandwiching the second trench with the first layer. The second and fourth layers are semiconductors of a first conductivity type, and the first, third, and fifth layers are semiconductors of a second conductivity type. A gate trench electrode is provided inside the first trench via the insulating film, and an emitter trench electrode is provided inside the second trench via the insulating film.

IPC Classes  ?

  • H01L 29/739 - Transistor-type devices, i.e. able to continuously respond to applied control signals controlled by field effect
  • H01L 29/06 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions
  • H01L 29/10 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions with semiconductor regions connected to an electrode not carrying current to be rectified, amplified, or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
  • H01L 29/40 - Electrodes
  • H01L 29/66 - Types of semiconductor device

25.

LENS DRIVING DEVICE, CAMERA MODULE, AND CAMERA-EQUIPPED DEVICE

      
Application Number 17907411
Status Pending
Filing Date 2021-03-11
First Publication Date 2023-04-20
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Sugawara, Masayoshi
  • Suzuki, Shun

Abstract

This lens driving device is provided with a movable part, a driving part, a magnet part having a first pole and a second pole, and a position detection part that is disposed to face the magnet part, and detects the position of the magnet part by detecting a magnetic field on a plane including an optical axis direction and a width direction. A boundary extends while bending such that the angle formed with the optical axis direction changes.

IPC Classes  ?

  • G02B 7/10 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens

26.

OPTICAL ELEMENT DRIVING DEVICE, CAMERA MODULE, AND CAMERA-EQUIPPED DEVICE

      
Application Number JP2022037043
Publication Number 2023/063157
Status In Force
Filing Date 2022-10-04
Publication Date 2023-04-20
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Sugawara, Masayoshi
  • Murakami, Tomoyuki

Abstract

This optical element driving device comprises: a movable side member that moves in a direction orthogonal to an optical axis by driving of a driving part while holding an optical element; a fixed side member that is disposed at a position separate from the movable side member in an optical axis direction, and supports the movable side member movably in the direction orthogonal to the optical axis via a rolling member; and a wire that is buried in the movable side member and/or the fixed side member and electrically connected to the driving part. The movable side member and the fixed side member each have a housing part forming surface that forms a housing part of the rolling member, and are exposed in a portion of the housing part forming surface such that the wire comes into contact with the rolling member.

IPC Classes  ?

  • G03B 5/00 - Adjustment of optical system relative to image or object surface other than for focusing of general interest for cameras, projectors or printers
  • G03B 15/00 - Special procedures for taking photographs; Apparatus therefor
  • G03B 17/02 - Bodies
  • G03B 30/00 - Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
  • H04N 23/55 - Optical parts specially adapted for electronic image sensors; Mounting thereof
  • H04N 23/57 - Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices

27.

ROTARY RECIPROCATING DRIVE ACTUATOR

      
Application Number 17943248
Status Pending
Filing Date 2022-09-13
First Publication Date 2023-03-30
Owner Mitsumi Electric Co., Ltd. (Japan)
Inventor
  • Kitamura, Yasutaka
  • Takahashi, Yuki
  • Kagami, Masaharu
  • Masamoto, Kai

Abstract

A rotary reciprocating drive actuator includes: a movable body including a magnet fixed to a shaft portion; a fixing body including a plurality of magnetic poles, a first magnetic attraction member, and a second magnetic attraction member that are disposed to face an outer circumference of the magnet;, the plurality of magnetic poles including a plurality of coils, the first magnetic attraction member being configured to generate a first magnetic attraction force, the second magnetic attraction member being configured to generate a second magnetic attraction force, in which a magnetic flux passing through the plurality of magnetic poles is generated by energization of the plurality of coils, causing the reciprocating rotation of the movable body about an axis of the shaft portion with reference to the rotational center position by electromagnetic interaction between the magnetic flux and the magnet.

IPC Classes  ?

  • H02K 33/12 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moving in alternate directions by alternate energisation of two coil systems
  • G02B 26/10 - Scanning systems

28.

OPTICAL DEFLECTION APPARATUS

      
Application Number 17821878
Status Pending
Filing Date 2022-08-24
First Publication Date 2023-03-02
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor Yamada, Tsukasa

Abstract

An optical deflection apparatus includes a movable member configured to deflect incident light from a light emitter, and a lid member configured to cover the movable member. The lid member includes an opening through which the incident light and deflected light of the incident light pass. The deflected light is deflected by the movable member. The lid member includes a light attenuation portion configured to attenuate reflected light of the incident light or of the deflected light. The reflected light is reflected by the lid member.

IPC Classes  ?

  • H01S 3/101 - Lasers provided with means to change the location from which, or the direction in which, laser radiation is emitted
  • G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light

29.

OPTICAL ACTUATOR, CAMERA MODULE, AND CAMERA-MOUNTED DEVICE

      
Application Number 17895291
Status Pending
Filing Date 2022-08-25
First Publication Date 2023-03-02
Owner Mitsumi Electric Co., Ltd. (Japan)
Inventor
  • Kikuchi, Atsushi
  • Takimoto, Yukihiro
  • Murakami, Tomoyuki

Abstract

An optical actuator is configured to include: a movable part on which a lens part is mountable, the movable part being configured to move by driving of a driving part; a fixing part accommodating the movable part; and a first shaft and a second shaft that are spaced apart from each other in a width direction of the movable part, and are fixed to the fixing part, in which the movable part is configured to slide on the first shaft and the second shaft while making contact with the first shaft at two places in an axial direction and with the second shaft at one place in the axial direction. Thus, the optical actuator capable of stably supporting the movable part with respect to the fixing part is provided.

IPC Classes  ?

  • G03B 13/36 - Autofocus systems
  • G03B 17/17 - Bodies with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera
  • G03B 5/08 - Swing backs

30.

OPTICAL ELEMENT DRIVING DEVICE, CAMERA MODULE, AND CAMERA-EQUIPPED DEVICE

      
Application Number JP2022031304
Publication Number 2023/026964
Status In Force
Filing Date 2022-08-19
Publication Date 2023-03-02
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Osaka, Tomohiko
  • Enta, Yohei

Abstract

This optical element driving device (1) for driving an optical element comprises: a retaining part (10) having an opening that surrounds the outer periphery of an optical element and is capable of retaining the optical element; an accommodating part (20) for accommodating the retaining part in the inside thereof; and support parts (40A) having a plurality of contact parts (31) that come in contact with the retaining part in at least three positions distributed in the circumferential direction inside the accommodating part, the support parts (40A) supporting the retaining part so as to be able to move in an optical axis direction while the retaining part is pressed toward the inside of the opening by the plurality of contact parts.

IPC Classes  ?

  • G02B 7/04 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
  • G02B 7/02 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses
  • G03B 15/00 - Special procedures for taking photographs; Apparatus therefor
  • H04N 5/225 - Television cameras

31.

OPTICAL ELEMENT DRIVING DEVICE, CAMERA MODULE, AND CAMERA-MOUNTED DEVICE

      
Application Number JP2022031306
Publication Number 2023/026965
Status In Force
Filing Date 2022-08-19
Publication Date 2023-03-02
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Ishikawa, Masahiro
  • Osaka, Tomohiko

Abstract

An optical element driving device according to the present invention comprises a moving part which is capable of holding an optical element, a driving part which drives the moving part by vibrating a piezoelectric element, and a voltage-raising part which raises input voltage that is input into the piezoelectric element, wherein the voltage-raising part has an inductor connected in series to the piezoelectric element and a capacitor connected in parallel to the piezoelectric element. A camera module according to the present invention comprises an optical element driving device and an imaging part which captures a subject image formed by an optical element. A camera-mounted device according to the present invention comprises a camera module and an image processing part which processes image information acquired by the camera module.

IPC Classes  ?

  • G02B 7/04 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
  • G03B 15/00 - Special procedures for taking photographs; Apparatus therefor
  • G03B 17/02 - Bodies
  • G03B 30/00 - Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
  • H04N 5/225 - Television cameras

32.

OPTICAL ELEMENT DRIVING DEVICE, CAMERA MODULE, AND CAMERA-EQUIPPED DEVICE

      
Application Number JP2022031307
Publication Number 2023/026966
Status In Force
Filing Date 2022-08-19
Publication Date 2023-03-02
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Enta, Yohei
  • Osaka, Tomohiko

Abstract

This optical element driving device comprises: a first movable part configured to be movable in an optical axis direction by a first driving part in a state of holding an optical element; and a second movable part configured by stacking a first stage and a second stage on a base so as to be movable in a direction orthogonal to the optical axis together with the first movable part by a second driving part. The second driving part is disposed along each of two side surfaces orthogonal to each other of the second movable part, and the first driving part is disposed at each of diagonal positions of the second movable part.

IPC Classes  ?

  • G02B 7/04 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
  • G02B 7/08 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
  • G03B 5/00 - Adjustment of optical system relative to image or object surface other than for focusing of general interest for cameras, projectors or printers
  • G03B 15/00 - Special procedures for taking photographs; Apparatus therefor
  • G03B 17/02 - Bodies
  • G03B 30/00 - Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
  • H04N 5/225 - Television cameras

33.

OPTICAL ACTUATOR, CAMERA MODULE, AND CAMERA-MOUNTED DEVICE

      
Application Number 17895113
Status Pending
Filing Date 2022-08-25
First Publication Date 2023-03-02
Owner Mitsumi Electric Co., Ltd. (Japan)
Inventor
  • Hayashi, Ichiro
  • Kimura, Yoshihiro

Abstract

An optical actuator is configured to include: a movable part including a mounting surface for an optical path bending member, and a recessed portion extending toward a center of the mounting surface at a back side of the mounting surface, the movable part being swung by driving of a driving part; and a fixing part including a protruding portion inserted into the recessed portion so as to define a swing center of the movable part as a position near the center of the mounting surface. Thus, an optical actuator capable of reducing the size of a product is provided.

IPC Classes  ?

34.

Semiconductor integrated circuit

      
Application Number 17817022
Grant Number 11782087
Status In Force
Filing Date 2022-08-03
First Publication Date 2023-02-16
Grant Date 2023-10-10
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor Takano, Yoichi

Abstract

A semiconductor integrated circuit includes: one input terminal; multiple output terminals; multiple first current control elements connected between the input terminal and the respective output terminals; a control circuit that controls the first current control elements; a fault detection circuit that includes multiple voltage comparator circuits each of which compares a voltage proportional to a voltage of one of the output terminals with a predetermined threshold voltage and that detects an open-circuit state or a short-circuit state of the output terminals; an external terminal connected to an external resistor; a voltage convertor circuit that generates the threshold voltage according to a voltage of the external terminal that is generated by flowing a current through the external resistor, the threshold voltage being applied to an input terminal of each of the voltage comparator circuits; and a detection result output terminal for outputting a detection result by the fault detection circuit.

IPC Classes  ?

  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • H03K 5/24 - Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude

35.

TRANSFORMER

      
Application Number JP2022015114
Publication Number 2023/007857
Status In Force
Filing Date 2022-03-28
Publication Date 2023-02-02
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Nishiyama Mutsuo
  • Daikyuji Arata

Abstract

A central part (11) has a hollow part (11a) that extends in a forward/backward direction. A conductive wire (12) is wound about the central part (11). A first core and a second core are formed of a material including a magnetic substance. The first core has: a first inner portion (131a) that extends from one end of the central part (11) in the forward/backward direction into the hollow part (11a); and a first outer portion (131b) that is opposed to the conductive wire (12) at least from the upward direction and from a left-right direction. The second core has: a second inner portion (132a) that extends from the other end of the central part (11) in the forward/backward direction into the hollow part (11a); and a second outer portion (132b) that is opposed to the conductive wire (12) at least from the upward direction and from the left-right direction. A tip end of the first inner portion (131a) and a tip end of the second inner portion (132a) are opposed to each other in the forward/backward direction. The diameter of the tip end of the first inner portion (131a) is different from the diameter of the tip end of the second inner portion (132a).

IPC Classes  ?

  • H01F 17/04 - Fixed inductances of the signal type with magnetic core
  • H01F 30/10 - Single-phase transformers
  • H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
  • H01F 27/28 - Coils; Windings; Conductive connections
  • H01F 27/36 - Electric or magnetic shields or screens

36.

PROJECTION DEVICE AND RANGING SYSTEM

      
Application Number JP2022018972
Publication Number 2023/007891
Status In Force
Filing Date 2022-04-26
Publication Date 2023-02-02
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Kawakami, Keisuke
  • Ajiki, Satoshi

Abstract

A projection device 1 includes: a first pattern plate 11a having a first pattern; a second pattern plate 11b having a second pattern; a light source 12 for radiating light onto the first pattern plate 11a and the second pattern plate 11b; and a projection optical system 13 for projecting the first pattern and the second pattern onto an object 200 by focusing transmitted light which has been transmitted through the first pattern plate 11a and the second pattern plate 11b. The first pattern plate 11a and the second pattern plate 11b are provided between the light source 12 and the projection optical system 13 on an optical axis OA of the projection optical system 13.

IPC Classes  ?

  • G01C 3/06 - Use of electric means to obtain final indication
  • G01B 11/00 - Measuring arrangements characterised by the use of optical techniques
  • G02B 7/32 - Systems for automatic generation of focusing signals using parallactic triangle with a base line using active means, e.g. light emitter
  • G02B 7/36 - Systems for automatic generation of focusing signals using image sharpness techniques
  • G03B 13/36 - Autofocus systems
  • G03B 35/04 - Stereoscopic photography by sequential recording with movement of beam-selecting members in a system defining two or more viewpoints
  • H04N 5/225 - Television cameras

37.

LENS DRIVING DEVICE, CAMERA MODULE, AND CAMERA MOUNT DEVICE

      
Application Number 17791560
Status Pending
Filing Date 2021-01-14
First Publication Date 2023-02-02
Owner Mitsumi Electric Co., Ltd. (Japan)
Inventor
  • Osaka, Tomohiko
  • Suzuki, Shun

Abstract

This lens driving device comprises: a first movable part and a second movable part; a first driving part and a second driving part that are respectively disposed on the first movable part and on the second movable part, on one end side thereof; and a guide part. A first ultrasound motor and a second ultrasound motor are arranged on the one end side. The guide part includes a plurality of guide shafts that support both a first frame and a second frame in a movable manner.

IPC Classes  ?

  • G02B 7/08 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
  • G03B 13/36 - Autofocus systems

38.

ROTARY RECIPROCATING DRIVE ACTUATOR

      
Application Number 17867719
Status Pending
Filing Date 2022-07-19
First Publication Date 2023-01-26
Owner Mitsumi Electric Co., Ltd. (Japan)
Inventor
  • Takahashi, Yuki
  • Kitamura, Yasutaka
  • Kagami, Masaharu
  • Masamoto, Kai

Abstract

A rotary reciprocating drive actuator includes: a movable body including a shaft portion and a magnet fixed to the shaft portion; a fixing body including a core assembly, the core assembly including a core body and coils, the core body having magnetic poles, the core assembly being disposed such that the magnetic poles face an outer periphery of the magnet; and a pair of shaft supports configured to sandwich the core assembly in an extending direction of extension of the shaft portion and support the shaft portion at opposite sides of the core assembly such that the shaft portion is rotatable, in which a magnetic flux passing through the core body is generated by energization of the coils, causing reciprocating rotation of the movable body about an axis of the shaft portion by electromagnetic interaction between the magnetic flux and the magnet.

IPC Classes  ?

  • H02K 33/16 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with polarised armatures moving in alternate directions by reversal or energisation of a single coil system
  • H02K 33/18 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets

39.

OPTICAL ELEMENT DRIVING DEVICE, CAMERA MODULE, AND CAMERA-MOUNTED DEVICE

      
Application Number JP2022024698
Publication Number 2023/002794
Status In Force
Filing Date 2022-06-21
Publication Date 2023-01-26
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor Sugawara, Masayoshi

Abstract

This optical element driving device comprises: a movable part that can hold an optical element and has a circuit for driving the optical element; a fixing part that is disposed via a support member at a position spaced apart from the movable part in an optical axis direction and that oscillatably supports the movable part by the support member in an optical axis orthogonal direction orthogonal to the optical axis direction; a connection member that elastically connects the movable part and the fixing part so as to hold a state where the movable part and the fixing part hold the support member therebetween and that forms a conductive path between the circuit and the fixing part; and a non-conductive member that is formed from a non-conductive material and that is disposed so as to surround at least a portion of the periphery of the connection member such that the connection member opposes a portion elastically deformed in the optical axis orthogonal direction.

IPC Classes  ?

  • G03B 5/00 - Adjustment of optical system relative to image or object surface other than for focusing of general interest for cameras, projectors or printers
  • G02B 7/04 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
  • G03B 30/00 - Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles

40.

DRIVING-UNIT OPERATION METHOD AND CONTROLLER

      
Application Number 17783672
Status Pending
Filing Date 2020-11-10
First Publication Date 2023-01-26
Owner
  • Miniswys S.A. (Switzerland)
  • MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Itagaki, Yoichi
  • Ishikawa, Masahiro
  • Yamaguchi, Daisuke
  • Brumann, Michael
  • Hoesli, Raphael

Abstract

A driving-unit operation method includes: generating pulse blocks on the basis of driving pulses; and modifying a driving signal in accordance with a position error signal. In the modifying the driving signal, when the position error signal is in a first range, the shape of the driving pulses is modified so as to form a first driving-pulse shape, and the pulse-block duty cycle is set to a first pulse-block duty cycle value, whereas when the position error signal is in a second range, the shape of the driving pulses is modified so as to form a second driving-pulse shape, and the pulse-block duty cycle is set to a second pulse-block duty cycle value.

IPC Classes  ?

  • G02B 7/08 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
  • G02B 27/64 - Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
  • G03B 13/36 - Autofocus systems
  • G03B 5/00 - Adjustment of optical system relative to image or object surface other than for focusing of general interest for cameras, projectors or printers

41.

LENS DRIVE DEVICE, CAMERA MODULE, AND CAMERA MOUNT DEVICE

      
Application Number 17785463
Status Pending
Filing Date 2020-12-21
First Publication Date 2023-01-26
Owner Mitsumi Electric Co., Ltd. (Japan)
Inventor
  • Osaka, Tomohiko
  • Suzuki, Shun

Abstract

This lens drive device is provided with: a first movable part; a second movable part; a first drive part; and a second drive part. The first drive part and the second drive part respectively have a first ultrasonic motor and a second ultrasonic motor. The first ultrasonic motor and the second ultrasonic motor are arranged on sides opposite to each other with respect an optical axis, and independently drive the first movable part and the second movable part in the optical axis direction.

IPC Classes  ?

  • G02B 7/02 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses
  • G03B 5/00 - Adjustment of optical system relative to image or object surface other than for focusing of general interest for cameras, projectors or printers
  • G03B 13/36 - Autofocus systems

42.

OPTICAL SCANNING DEVICE

      
Application Number 17783892
Status Pending
Filing Date 2020-12-11
First Publication Date 2023-01-26
Owner
  • MITSUMI ELECTRIC CO., LTD. (Japan)
  • DENSO CORPORATION (Japan)
Inventor
  • Takahashi, Yuki
  • Kagami, Masaharu
  • Kitamura, Yasutaka

Abstract

This optical scanning device includes: a shaft part to which a mirror part is connected; a movable magnet; a base part; a ball bearing; a core unit that has a core body and a coil body and rotationally drives the movable magnet; and a magnet position holding member that is a magnetic body provided facing the movable magnet and magnetically attracts the movable magnet to a reference position. The core unit is disposed on the outer surface side of one wall section of a pair of wall sections of the base part. An angle sensor unit for detecting the rotation angle position of the shaft part is disposed between the core unit and the one wall section.

IPC Classes  ?

  • G02B 26/10 - Scanning systems
  • H01F 7/08 - Electromagnets; Actuators including electromagnets with armatures
  • G01B 11/26 - Measuring arrangements characterised by the use of optical techniques for testing the alignment of axes

43.

LENS DRIVING APPARATUS, CAMERA MODULE, AND CAMERA-MOUNTED APPARATUS

      
Application Number 17783277
Status Pending
Filing Date 2020-10-30
First Publication Date 2023-01-19
Owner Mitsumi Electric Co., Ltd. (Japan)
Inventor Sugawara, Masayoshi

Abstract

A lens drive device is provided with: a lens holder for holding a lens; an ultrasonic motor configured to move the lens holder in a direction of an optical axis; and a support part configured to support the lens holder in a state where the lens holder is urged in a direction orthogonal to the optical axis and such that the lens holder is capable of moving in the direction of the optical axis. The support part includes two pairs of support portions which are disposed respectively on two straight lines along an urging direction and parallel to each other such that the support portions of each pair holds the lend holder therebetween.

IPC Classes  ?

  • G03B 5/00 - Adjustment of optical system relative to image or object surface other than for focusing of general interest for cameras, projectors or printers
  • G03B 13/36 - Autofocus systems
  • H04N 5/225 - Television cameras

44.

PUSH SWITCH

      
Application Number 17812908
Status Pending
Filing Date 2022-07-15
First Publication Date 2023-01-19
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Yasunaga, Yoichi
  • Kawamura, Takashi

Abstract

A push switch contains a case including a containing portion and a sealing groove; a pair of contacts disposed in the containing portion so as to be spaced apart from each other; a movable contact which is disposed above the pair of contacts in the containing portion; a cap including a base portion disposed on the case and a sealing protrusion protruding from a peripheral edge portion of the base portion toward a lower side for liquid-tightly sealing the sealing groove of the case; and a cover attached to the case from an upper side so as to hold the cap on the case. The sealing protrusion of the cap is compressively deformed in the sealing groove of the case, and thereby the sealing groove of the case is liquid-tightly sealed.

IPC Classes  ?

  • H01H 13/06 - Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
  • H01H 13/14 - Operating parts, e.g. push-button
  • H01H 13/20 - Driving mechanisms
  • H01H 13/10 - Bases; Stationary contacts mounted thereon

45.

ROTARY RECIPROCATING DRIVING ACTUATOR

      
Application Number 17854018
Status Pending
Filing Date 2022-06-30
First Publication Date 2023-01-05
Owner Mitsumi Electric Co., Ltd. (Japan)
Inventor
  • Takahashi, Yuki
  • Kitamura, Yasutaka
  • Kagami, Masaharu

Abstract

A rotary reciprocating driving actuator includes: a movable member including a shaft part and a magnet; and a fixing body including a core assembly including a magnetic pole core with an integral structure including a plurality of magnetic poles, a plurality of coils disposed next to the plurality of magnetic poles, and a magnetic path core to which the magnetic pole core is assembled, wherein the core assembly is disposed such that the plurality of magnetic poles faces an outer periphery of the magnet, wherein a magnetic flux that passes through a magnetic path configured of the magnetic path core and the magnetic pole core of the integral structure is generated through energization of the plurality of coils, and the movable member is rotated back and forth around an axis of the shaft part through electromagnetic interaction of the magnetic flux and the magnet.

IPC Classes  ?

  • H02K 33/12 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moving in alternate directions by alternate energisation of two coil systems
  • G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
  • G02B 26/12 - Scanning systems using multifaceted mirrors

46.

CELL MONITOR CONNECTOR

      
Application Number JP2022014589
Publication Number 2023/276362
Status In Force
Filing Date 2022-03-25
Publication Date 2023-01-05
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Mizue, Taro
  • Kawasaki, Takashi
  • Sukegawa, Akihito
  • Takagi, Soichi
  • Winker, Martin
  • Niemeyer, Ingo Oliver

Abstract

The present invention allows the voltages of a plurality of cells of a fuel battery to be measured without using an additional component such as another connector or wiring even when the number of channels for measurement of a measuring instrument is limited. A cell voltage cell monitor connector (1) for a fuel battery includes: a plurality of cell voltage measuring terminals (2) respectively connected to a plurality of cells (110) of a cell unit; a zero set voltage measuring terminal (3) connected to a cell (110) stacked from the negative direction side of a stacking direction on a cell located first on the negative direction side of the stacking direction among the plurality of cells (110) of the cell unit; and a housing (4) holding the plurality of cell voltage measuring terminals (2) and the zero set voltage measuring terminal (3).

IPC Classes  ?

  • H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
  • H01M 8/2465 - Grouping of fuel cells, e.g. stacking of fuel cells - Details of groupings of fuel cells

47.

FLOW CREATION SYSTEM

      
Application Number JP2022025573
Publication Number 2023/276953
Status In Force
Filing Date 2022-06-27
Publication Date 2023-01-05
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor Miyamoto, Hirokatsu

Abstract

A flow creation system 1 comprises: a beacon transmitter 3 that transmits a beacon signal 31 with a predetermined frequency of transmission; a cluster-type network CN that includes an end receiver layer composed of a plurality of end receiver units ER configured to receive the beacon signal 31 transmitted from the beacon transmitter 3 and a reporter layer composed of a plurality of reporter units R configured to receive first report data 7 on the intensity of the beacon signal 31, which is received by each of the plurality of end receiver units ER, from each of the plurality of end receiver units ER and generate second report data 8; and an application device 5 that creates, on the basis of the second report data 8, a flow to be tracked.

IPC Classes  ?

  • G08G 1/13 - Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles to a central station the indicator being in the form of a map
  • G06Q 30/06 - Buying, selling or leasing transactions
  • G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves

48.

OPTICAL ACTUATOR, CAMERA MODULE, AND CAMERA-MOUNTED APPARATUS

      
Application Number 17832726
Status Pending
Filing Date 2022-06-06
First Publication Date 2022-12-08
Owner Mitsumi Electric Co., Ltd. (Japan)
Inventor Takimoto, Yukihiro

Abstract

Provided is an optical actuator that includes an elastic support member having a small influence on the drivability of a lens guide and having a high durability by configuring the optical actuator to include: a fixed-side member; a movable-side member that is arranged apart from the fixed-side member in a first direction orthogonal to an optical axis, holds a lens part, and moves by power of a driving part; and an elastic support member that supports the movable-side member with respect to the fixed-side member, and by configuring the optical actuator such that the elastic support member includes an elastic deformation part formed by at least a pair of linear parts arranged so as to follow each other in a state of having an interval between the pair of linear parts.

IPC Classes  ?

49.

DROPLET SENSOR

      
Application Number 17663881
Status Pending
Filing Date 2022-05-18
First Publication Date 2022-11-24
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor Kurosawa, Hideo

Abstract

A droplet sensor includes an optical cover having a curved surface that forms a part of a spheroid, a protective film that covers the curved surface of the optical cover, a light source provided at a first focal point of an ellipse facing the curved surface, and a photodetector provided at a second focal point of the ellipse. The refractive index of the protective film is greater than the refractive index of a liquid to be detected. A sensing region is determined by a range of an incident angle at which a light beam emitted from the light source and incident onto the curved surface is totally reflected at the interface between the protective film and a gas, and is not totally reflected at the interface between the protective film and the liquid to be detected.

IPC Classes  ?

  • G01N 21/43 - Refractivity; Phase-affecting properties, e.g. optical path length by measuring critical angle

50.

SECONDARY BATTERY PROTECTION CIRCUIT, BATTERY PACK, BATTERY SYSTEM, AND METHOD FOR PROTECTING SECONDARY BATTERY

      
Application Number 17660868
Status Pending
Filing Date 2022-04-27
First Publication Date 2022-11-17
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Yamaguchi, Takeshi
  • Kitamura, Iwao

Abstract

A secondary battery protection circuit includes a potential-difference control circuit. The potential-difference control circuit provides, when overcharge is detected by an overcharge detection circuit, a control terminal of a charge control transistor with feedback on a potential-difference detection signal to control a potential difference between an electrode of a secondary battery and a terminal for a load and charger. The potential-difference control circuit provides, when overdischarge is detected by an overdischarge detection circuit, a control terminal of each of the charge control transistor and a discharge control transistor with feedback on the potential-difference detection signal to control the potential difference.

IPC Classes  ?

  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

51.

CONTAINER, CONTAINER SUPPORT, VEHICLE DETECTION DEVICE, AND CONTAINER EMBEDDING METHOD

      
Application Number JP2022017587
Publication Number 2022/220240
Status In Force
Filing Date 2022-04-12
Publication Date 2022-10-20
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Numakunai, Takayuki
  • Omata, Junichi
  • Nishizono, Masato
  • Tabata, Hiroyuki

Abstract

A container that is disposed and used inside a housing hole formed in a road surface and comprises a support that extends towards the outside from a side surface of the main body of the container, curves when the main body is inserted into the housing hole, an outer end section abutting an inside wall of the housing hole, and supports the main body so as to maintain the position of the main body inside the housing hole. The vehicle detection device comprises: a vehicle detection unit that detects the presence of a vehicle; and a container that houses the vehicle detection unit therein. The container support supports, inside the housing hole formed in a road surface, a container disposed and used inside the housing hole, and comprises: a holding unit that detachably holds the container; and a support that extends from the holding unit so as to face the outside from a side surface of the container, curves when the container is inserted into the housing hole, an outer end section abutting an inside wall of the housing hole, and supports the container so as to maintain the position of the container inside the housing hole.

IPC Classes  ?

  • E01F 11/00 - Embedding pads or other sensitive devices in paving or other road surfaces
  • G08G 1/042 - Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
  • E01F 9/506 - Road surface markings; Kerbs or road edgings, specially adapted for alerting road users characterised by the road surface marking material, e.g. comprising additives for improving friction or reflectivity; Methods of forming, installing or applying markings in, on or to road surfaces

52.

MAGNETIC DETECTION DEVICE AND SEMICONDUCTOR INTEGRATED CIRCUIT FOR AMPLIFYING MAGNETIC DETECTION SIGNAL

      
Application Number 17640406
Status Pending
Filing Date 2020-08-14
First Publication Date 2022-10-13
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor Ogawa, Yutaka

Abstract

A magnetic detection device that comprises an amplification circuit amplifying a detection signal from a magnetic sensor that is positioned, for example, in a location where an alternating current magnetic field enters as noise, and detects an alternating current magnetic field targeted for monitoring, said magnetic detection device further comprising: timer circuits that are activated in response to a change in the output of the amplification circuit, and if these clock a prescribed time, the outputs thereof change; a logic circuit that treats the outputs of the timer circuits as inputs; and an oscillation circuit for generating an operation clock signal for the timer circuits. The timer circuits are structured such that if the output of the amplification circuit changes to a different direction before the clocking of the prescribed time is complete, the timer circuits are reset.

IPC Classes  ?

53.

ANTENNA DEVICE

      
Application Number JP2022017203
Publication Number 2022/215713
Status In Force
Filing Date 2022-04-06
Publication Date 2022-10-13
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Nishizono, Masato
  • Omata, Junichi

Abstract

An antenna device comprising: a chassis; a substrate; a flat antenna unit disposed on a first surface of the substrate on a side opposite a predetermined wall; a circuit unit disposed on a second surface of the substrate on the predetermined wall side, and electrically connected to the flat antenna unit; and a shield member disposed in a position in a part of the predetermined wall opposite the circuit unit, to shield unwanted waves emitted from the circuit unit.

IPC Classes  ?

  • H01Q 1/52 - Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
  • H01Q 1/32 - Adaptation for use in or on road or rail vehicles
  • H01Q 1/42 - Housings not intimately mechanically associated with radiating elements, e.g. radome

54.

RANGING DEVICE AND METHOD FOR DETERMINING DISTANCE

      
Application Number 17652178
Status Pending
Filing Date 2022-02-23
First Publication Date 2022-10-06
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Kimura, Yuji
  • Tanaka, Toyoki
  • Nishiyama, Takahiko
  • Yamada, Kensuke

Abstract

A ranging device includes a light emitting circuit configured to emit light and a splitter configured to split the light into multiple beams. The ranging device includes a scanning circuit configured to perform scanning in two axial directions while aiming the multiple beams toward an emission area. The ranging device includes multiple light receiving circuits configured to respectively receive beams obtained from the multiple beams that are reflected or scattered by an object existing in the emission area, the light receiving circuits being configured to respectively output light reception signals. The ranging device includes a distance-information outputting circuit configured to output distance information about the object, the distance information being obtained based on each of the light reception signals that is output from a corresponding light receiving circuit among the multiple light receiving circuits.

IPC Classes  ?

  • G01S 7/4865 - Time delay measurement, e.g. time-of-flight measurement, time of arrival measurement or determining the exact position of a peak
  • G01S 7/481 - Constructional features, e.g. arrangements of optical elements
  • G01S 17/931 - Lidar systems, specially adapted for specific applications for anti-collision purposes of land vehicles
  • G01S 17/10 - Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves

55.

SENSING DEVICE AND METHOD FOR MANUFACTURING SENSING DEVICE

      
Application Number 17656446
Status Pending
Filing Date 2022-03-25
First Publication Date 2022-10-06
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Hayakawa, Etsuji
  • Nakane, Taketomo

Abstract

A sensing device includes a lead frame, a first insulating film, a semiconductor integrated circuit chip provided over the lead frame via the first insulating film, and a first bonding wire via which an external derivation lead and the semiconductor integrated circuit chip are electrically coupled to each other. The sensing device includes a sensor chip disposed over the semiconductor integrated circuit chip such that a first surface of the sensor chip faces the semiconductor integrated circuit chip. The sensing device includes a sensor provided on a second surface of the sensor chip. The sensing device includes a molding resin with which the lead frame, the semiconductor integrated circuit chip, the sensor chip, and the first bonding wire are sealed. The sensor chip is electrically coupled to the semiconductor integrated circuit chip, and the molding resin has an opening in which the sensor is exposed.

IPC Classes  ?

  • B81B 7/00 - Microstructural systems
  • B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate

56.

Electrical connector

      
Application Number 17653089
Grant Number 11764525
Status In Force
Filing Date 2022-03-01
First Publication Date 2022-09-29
Grant Date 2023-09-19
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Endo, Kazuma
  • Sadohara, Hiroyuki
  • Kanda, Takahiro

Abstract

An electrical connector includes contact pins, insulating housings for containing the contact pins therein and metallic outer contacts for respectively covering the housings. Each of the contact pins includes a horizontally extending portion, a contact portion, a connection portion, a downwardly extending portion and a press-fitting shoulder extending from a side portion of a base end portion of the horizontally extending portion in a width direction thereof. A width of the press-fitting shoulder of each of the contact pins decreases from a base side toward a tip side.

IPC Classes  ?

  • H01R 24/40 - Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
  • H01R 13/24 - Contacts for co-operating by abutting resiliently mounted
  • H01R 13/504 - Bases; Cases composed of different pieces different pieces being moulded, cemented, welded, e.g. ultrasonic, or swaged together
  • H01R 13/516 - Means for holding or embracing insulating body, e.g. casing
  • H01R 12/72 - Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures

57.

INCORRECT INSERTION PREVENTION STRUCTURE FOR PLUG, AND ELECTRONIC DEVICE

      
Application Number JP2022012814
Publication Number 2022/202707
Status In Force
Filing Date 2022-03-18
Publication Date 2022-09-29
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Tamura, Kazuya
  • Okamoto, Mitsuhiro
  • Furukawa, Kenichi

Abstract

This incorrect insertion prevention structure 250 includes: a screw hole 261 that can be engaged with a lock screw 1060 when a plug terminal 1030 in a normal orientation P1 is connected with a receptacle 810; and a protrusion 270 that protrudes from the perimeter of the receptacle 810, allows connection of the receptacle 810 and the plug terminal 1030 in the normal orientation P1, and restricts connection of the receptacle 810 and the plug terminal 1030 while in a reverse orientation P2.

IPC Classes  ?

  • H01R 13/639 - Additional means for holding or locking coupling parts together after engagement
  • H01R 13/64 - Means for preventing, inhibiting or avoiding incorrect coupling

58.

CAMERA DESIGNING METHOD AND CAMERA

      
Application Number JP2022012816
Publication Number 2022/202708
Status In Force
Filing Date 2022-03-18
Publication Date 2022-09-29
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Tamura, Kazuya
  • Furukawa, Kenichi
  • Fujita, Naoki
  • Okamoto, Mitsuhiro

Abstract

In a camera 100, a lens unit 420 and an image capturing element 600 that receives light input thereto from the lens unit 420 are connected to each other via a distance increasing member 110 and a distance decreasing member 120, the distance increasing member 110 increasing the separation distance D between the lens unit 420 and the image capturing element 600 in response to a thermal variation, and the distance decreasing member 120 decreasing the separation distance D between the lens unit 420 and the image capturing element 600 in response to a thermal variation.

IPC Classes  ?

  • G02B 7/02 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses
  • G02B 7/04 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
  • G03B 17/02 - Bodies
  • H04N 5/225 - Television cameras

59.

CAMERA

      
Application Number JP2022012819
Publication Number 2022/202709
Status In Force
Filing Date 2022-03-18
Publication Date 2022-09-29
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Tamura, Kazuya
  • Furukawa, Kenichi
  • Fujita, Naoki
  • Okamoto, Mitsuhiro

Abstract

A camera 100 has a cylinder 300 and a lens assembly 400 positioned inside the cylinder 300. The cylinder 300 has: a small-diameter section 310 having a screw thread 311 formed in the outer circumference thereof; a medium-diameter section 320 positioned to the rear of the small-diameter section 310 and having a larger outer diameter than does the small-diameter section 310; a large-diameter section 330 positioned to the rear of the medium-diameter section 320 and having a larger outer diameter than does the medium-diameter section 320; and a stepped surface 350 positioned between the medium-diameter section 320 and the large-diameter section 330. The cylinder 300 is inserted into a through-hole 2040 of an attachment 2000, and a fastener 2900 is fastened to the attachment 2000 by being screwed onto the screw threads 311 from the light-receiving side of the attachment 2000 in the optical axis direction while the stepped surface 350 abuts the attachment 2000.

IPC Classes  ?

  • G03B 17/56 - Accessories
  • G02B 7/04 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
  • G03B 17/02 - Bodies
  • H04N 5/225 - Television cameras

60.

ELECTRICAL CONNECTOR

      
Application Number 17653807
Status Pending
Filing Date 2022-03-07
First Publication Date 2022-09-29
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Endo, Kazuma
  • Sadohara, Hiroyuki
  • Kanda, Takahiro

Abstract

An electrical connector includes a contact pin to be connected to a core wire of a coaxial cable, an insulating housing for holding the contact pin therein, a cylindrical outer contact covering the housing and a crimping member for attaching the outer contact to the coaxial cable. A base end portion of the outer contact is located between an inner insulator layer and an outer conductor layer of the coaxial cable. The outer contact is attached to the coaxial cable by crimping the crimping member onto the outer conductor layer of the coaxial cable located on the base end portion of the outer contact.

IPC Classes  ?

  • H01R 4/18 - Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
  • H01R 24/40 - Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency

61.

METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE

      
Application Number 17655828
Status Pending
Filing Date 2022-03-22
First Publication Date 2022-09-29
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Nakane, Taketomo
  • Hayakawa, Etsuji

Abstract

A method for manufacturing a semiconductor device includes providing a wafer that includes a device region and a peripheral region of the device region, the device region including multiple chip regions. The method includes removing a portion of the peripheral region such that the removed portion has an annular shape. The method includes forming a protective layer on a first surface of the wafer. The method includes grinding a second surface of the wafer in which the protective layer is formed on the first surface.

IPC Classes  ?

  • H01L 21/304 - Mechanical treatment, e.g. grinding, polishing, cutting
  • H01L 21/78 - Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
  • H01L 21/56 - Encapsulations, e.g. encapsulating layers, coatings
  • H01L 21/027 - Making masks on semiconductor bodies for further photolithographic processing, not provided for in group or

62.

CAMERA

      
Application Number JP2022007312
Publication Number 2022/181624
Status In Force
Filing Date 2022-02-22
Publication Date 2022-09-01
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Tamura, Kazuya
  • Okamoto, Mitsuhiro
  • Furukawa, Kenichi

Abstract

A camera 100 comprises a cylinder 300, a lens assembly 400 that is disposed within the cylinder 300, an imaging element 600 that receives light incident from the lens assembly 400, and a moving mechanism 500 that moves the lens assembly 400 in an optical axis direction LL within the cylinder 300 by applying, to the lens assembly 400, force in the optical axis direction LL from the image formation side in the optical axis direction LL.

IPC Classes  ?

  • G02B 7/04 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
  • G02B 7/08 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
  • G03B 13/32 - Means for focusing
  • H04N 5/225 - Television cameras

63.

LENS COVER ASSEMBLY AND CAMERA COMPRISING LENS COVER ASSEMBLY

      
Application Number JP2022007328
Publication Number 2022/181626
Status In Force
Filing Date 2022-02-22
Publication Date 2022-09-01
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Tamura, Kazuya
  • Okamoto, Mitsuhiro

Abstract

A lens cover assembly 900 includes: a cap 910 that comprises a ring-shaped body portion 911, a ring-shaped wall portion 912 extending from the body portion 910, a receiving portion 913 formed on the inner circumferential surface of the wall portion 912, and an engaging portion 914 protruding outwardly from the outer circumferential surface of the wall portion 912; a lens cover 920 that is accommodated in the receiving portion 913 of the cap 910; and a fixing member 930 that comprises a ring-shaped body portion 931, a wall portion 932 extending from the outer edge of the body portion 931, and a tab portion 933 protruding inwardly from the inner circumferential surface of the wall portion 932. By engaging the engaging portion 914 of the cap 910 with the tab portion 933 of the fixing member 930, the fixing member 930 is attached to the cap 910, and the lens cover 920 is retained in the receiving portion 913 of the cap 910.

IPC Classes  ?

  • G03B 11/02 - Sky masks
  • G03B 11/04 - Hoods or caps for eliminating unwanted light from lenses, viewfinders, or focusing aids
  • G03B 17/02 - Bodies
  • G03B 17/08 - Waterproof bodies or housings
  • G02B 7/02 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses

64.

RESET SEMICONDUCTOR INTEGRATED CIRCUIT AND ELECTRONIC CIRCUIT SYSTEM USING THE SAME

      
Application Number 17679169
Status Pending
Filing Date 2022-02-24
First Publication Date 2022-08-25
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Takano, Yoichi
  • Hirai, Masaru

Abstract

Disclosed is a reset semiconductor integrated circuit that outputs a reset signal in response to a power supply voltage of a monitoring target becoming lower than a predetermined level, the reset semiconductor integrated circuit including: a voltage detection circuit; an output stage including a CMOS circuit that generates and outputs a signal according to a detection result of the voltage detection circuit; a monitored voltage input terminal to which the power supply voltage of the monitoring target is input; a reference potential terminal to which a voltage as a reference potential of a circuit is applied; an external voltage terminal which is connected to a power supply voltage terminal of the output stage to allow a power supply voltage as an operation voltage of the output stage to be applied from outside; and an output terminal to output the signal generated by the output stage.

IPC Classes  ?

  • H03K 17/22 - Modifications for ensuring a predetermined initial state when the supply voltage has been applied

65.

ROTARY RECIPROCATING DRIVE ACTUATOR

      
Application Number 17673816
Status Pending
Filing Date 2022-02-17
First Publication Date 2022-08-25
Owner Mitsumi Electric Co., Ltd. (Japan)
Inventor
  • Takahashi, Yuki
  • Kagami, Masaharu
  • Kitamura, Yasutaka
  • Otsuka, Yuki

Abstract

A rotary reciprocating drive actuator capable of increasing the size and amplitude of a movable object such as a mirror, and of stabilizing the drive performance is provided. The rotary reciprocating drive actuator includes a movable part including a rotating shaft, a fixed part supporting the rotating shaft, and a driving part that includes a coil and a core disposed on the fixed part and a magnet disposed on the rotating shaft, and rotates the rotating shaft about the axis thereof with respect to the fixed part by utilizing electromagnetic interaction. The fixed part includes first and second supports disposed so as to face each other with the magnet therebetween in the axial direction. The rotating shaft is rotatably attached to the first and second supports via first and second bearings. One of the first and second bearings is a rolling bearing, and the other is a slide bearing.

IPC Classes  ?

  • G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
  • G02B 26/10 - Scanning systems
  • H02K 11/22 - Optical devices
  • H02K 7/08 - Structural association with bearings
  • H02K 1/34 - Reciprocating, oscillating or vibrating parts of the magnetic circuit

66.

LENS DRIVING DEVICE, CAMERA MODULE, AND CAMERA-MOUNTED DEVICE

      
Application Number 17609430
Status Pending
Filing Date 2020-05-07
First Publication Date 2022-07-28
Owner
  • Miniswys S.A. (Switzerland)
  • MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Suzuki, Shun
  • Itagaki, Yoichi
  • Osaka, Tomohiko
  • Ishikawa, Masahiro
  • Yamaguchi, Daisuke
  • Hoesli, Raphael
  • Roten, Maxime
  • Brumann, Michael
  • Baume, Loann

Abstract

A lens driving device includes: a movable part for accommodating a lens; and an ultrasonic motor having a resonance part configured to move the movable part by motion of the resonance part of the ultrasonic motor. The resonance part has a pair of arms, and is disposed such that only one of the arms is in contact with the movable part.

IPC Classes  ?

  • G02B 7/09 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
  • G02B 27/64 - Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
  • G03B 5/04 - Vertical adjustment of lens; Rising fronts
  • G03B 13/36 - Autofocus systems
  • H02N 2/02 - Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners
  • H04N 5/232 - Devices for controlling television cameras, e.g. remote control
  • H04N 5/225 - Television cameras

67.

Parking detection sensor and parking detection method

      
Application Number 17617721
Grant Number 11783700
Status In Force
Filing Date 2020-06-09
First Publication Date 2022-07-28
Grant Date 2023-10-10
Owner Mitsumi Electric Co., Ltd. (Japan)
Inventor Takada, Yuji

Abstract

Parking detection sensor (100) has a Doppler sensor (110), a magnetic sensor (120) that detects magnetism on XYZ axes, a change point detection unit (130) that detects a change point in the output of the Doppler sensor (110) and the magnetic sensor (120), a level difference detection unit (140) that detects the magnetic level difference over time in the output of the Doppler sensor (110) and the magnetic sensor (120), and a state assessment unit (150) that assesses the parking state of a vehicle on the basis of the detection results of the change point detection unit (130) and the detection results of the level difference detection unit (140).

IPC Classes  ?

  • G08G 1/042 - Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
  • G01S 13/04 - Systems determining presence of a target
  • G01S 13/50 - Systems of measurement based on relative movement of target
  • G01S 13/56 - Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
  • G08G 1/14 - Traffic control systems for road vehicles indicating individual free spaces in parking areas

68.

OPTICAL DEFLECTION APPARATUS AND IMAGE PROJECTION APPARATUS

      
Application Number 17647612
Status Pending
Filing Date 2022-01-11
First Publication Date 2022-07-21
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor Yamada, Tsukasa

Abstract

An optical deflection apparatus includes an optical deflection part configured to deflect light incident on a reflection surface by swinging the reflection surface about a swing axis, and a light transmission plate configured to transmit the light deflected by the optical deflection part, wherein an inclination angle of the light transmission plate with reference to a reference surface is equal to or greater than twice a maximum swing angle of the reflection surface with reference to the reference surface.

IPC Classes  ?

69.

OPTICAL DEFLECTION APPARATUS AND IMAGE PROJECTION APPARATUS

      
Application Number 17646923
Status Pending
Filing Date 2022-01-04
First Publication Date 2022-07-14
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor Yamada, Tsukasa

Abstract

An optical deflection apparatus includes a first optical deflection part configured to deflect light incident on a first reflection surface, by swinging the first reflection surface about a first swing axis, and a second optical deflection part configured to deflect the light deflected by the first reflection surface, by swinging a second reflection surface about a second swing axis crossing the first swing axis. The first swing axis crosses a first incidence plane including a central axis of the light incident on the first reflection surface and a central axis of the light deflected by the first reflection surface, and the second swing axis crosses a second incidence plane including a central axis of the light incident on the second reflection surface and a central axis of the light deflected by the second reflection surface.

IPC Classes  ?

70.

Electrical connector and electronic device

      
Application Number 17657101
Grant Number 11670895
Status In Force
Filing Date 2022-03-29
First Publication Date 2022-07-14
Grant Date 2023-06-06
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Kawasaki, Takashi
  • Sadohara, Hiroyuki
  • Mizue, Taro

Abstract

An electrical connector contains a first contact group arranged on a first contact plane, a second contact group arranged on a second contact plane and a ground plate located on a ground plane. The ground plate is located between horizontally extending portions of the contacts of the first contact group and horizontally extending portions, downwardly extending portions and terminal portions of the contacts of the second contact group in addition to between contacting portions and the horizontally extending portions of the contacts of the first contact group and contacting portions and the horizontally extending portions of the contacts of the second contact group.

IPC Classes  ?

  • H01R 13/6471 - Means for preventing cross-talk by special arrangement of ground and signal conductors, e.g. GSGS [Ground-Signal-Ground-Signal]
  • H01R 13/52 - Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
  • H01R 107/00 - Four or more poles

71.

Electrical connector and electronic device

      
Application Number 17657321
Grant Number 11670896
Status In Force
Filing Date 2022-03-30
First Publication Date 2022-07-14
Grant Date 2023-06-06
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Kawasaki, Takashi
  • Sadohara, Hiroyuki
  • Mizue, Taro

Abstract

An electrical connector contains a first contact group arranged on a first contact plane, a second contact group arranged on a second contact plane and a ground plate located on a ground plane. The ground plate is located between horizontally extending portions of the contacts of the first contact group and horizontally extending portions, downwardly extending portions and terminal portions of the contacts of the second contact group in addition to between contacting portions and the horizontally extending portions of the contacts of the first contact group and contacting portions and the horizontally extending portions of the contacts of the second contact group.

IPC Classes  ?

  • H01R 13/6471 - Means for preventing cross-talk by special arrangement of ground and signal conductors, e.g. GSGS [Ground-Signal-Ground-Signal]
  • H01R 13/52 - Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
  • H01R 107/00 - Four or more poles

72.

TEMPERATURE MEASUREMENT CIRCUIT AND TEMPERATURE MEASUREMENT DEVICE

      
Application Number 17646028
Status Pending
Filing Date 2021-12-27
First Publication Date 2022-07-07
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor Shibata, Kohei

Abstract

A temperature measurement circuit for measuring a temperature using a temperature sensitive element includes a voltage control circuit configured to apply a control voltage to the temperature sensitive element. The temperature measurement circuit includes a first switching circuit configured to switch levels of the control voltage based on a current flowing through the temperature sensitive element. The temperature measurement circuit includes a conversion circuit configured to convert the current flowing through the temperature sensitive element into a voltage level corresponding to the measured temperature, by using predetermined conversion gain. The temperature measurement circuit includes a second switching circuit configured to switch values of the conversion gain based on the voltage level.

IPC Classes  ?

  • G01K 7/25 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using resistive elements the element being a non-linear resistance, e.g. thermistor in a specially-adapted circuit, e.g. bridge circuit for modifying the output characteristic, e.g. linearising
  • G01K 3/00 - Thermometers giving results other than momentary value of temperature

73.

LIGHT SCANNING DEVICE AND DISTANCE MEASURING DEVICE

      
Application Number 17644602
Status Pending
Filing Date 2021-12-16
First Publication Date 2022-06-30
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Yamada, Kensuke
  • Nishiyama, Takahiko
  • Tanaka, Toyoki
  • Kimura, Yuji

Abstract

A light scanning device includes a light emitter configured to emit light; an optical scanner configured to cause the light to scan; a light receiver configured to receive returning light as scanning light from the optical scanner being reflected or scattered on an object; and an optical scanning controller including processing circuitry configured to control the optical scanner. The optical scanner includes a rotating polyhedron configured to include a plurality of reflective surfaces, to cause the light to scan around a first axis by reflecting the light on a reflective surface while rotating around the first axis; a supporter configured to support the rotating polyhedron; and a rotating mechanism configured to rotate the supporter around a second axis that crosses the first axis, to cause the light reflected on the reflective surface to scan around the second axis.

IPC Classes  ?

  • G01S 7/481 - Constructional features, e.g. arrangements of optical elements
  • G01B 21/22 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for testing the alignment of axes
  • G01S 17/08 - Systems determining position data of a target for measuring distance only

74.

VEHICLE OCCUPANT DETECTION DEVICE, AND EXECUTION TIMING CONTROL METHOD

      
Application Number JP2021042872
Publication Number 2022/137947
Status In Force
Filing Date 2021-11-24
Publication Date 2022-06-30
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Shimizu, Nobutaka
  • Kojima, Akihiko

Abstract

The present invention suppresses the unnecessary detection of an occurence of a person being left behind in a vehicle. A vehicle occupant detection device (100) comprises: a distance detection unit (101) that detects the relative distance between a vehicle (200) and a first occupant; an occupant detection unit (102) that detects the presence/absence of a second occupant in the vehicle (200); and an execution timing controller (103) that, according to the detected relative distance, controls the execution timing of the detection operation by the occupant detection unit (102).

IPC Classes  ?

  • G08B 21/22 - Status alarms responsive to presence or absence of persons
  • G08B 25/04 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using a single signalling line, e.g. in a closed loop

75.

LENS DRIVING DEVICE, CAMERA MODULE, AND CAMERA-MOUNTED APPARATUS

      
Application Number 17595524
Status Pending
Filing Date 2020-05-22
First Publication Date 2022-06-30
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Osaka, Tomohiko
  • Hayashi, Ichiro
  • Kikuchi, Atsushi

Abstract

This lens driving device is configured separately from a lens unit including a liquid lens, and is provided with: a fixed part; a movable part; a support part that supports the movable part with respect to the fixed part; a driving unit that is formed from a voice coil motor comprising a coil and a magnet and that moves the movable part in an optical axis direction with respect to the fixed part; and a lens deformation unit that is connected to the movable part and that applies, in association with the movement of the movable part, a force to the liquid lens in the optical axis direction. The movable part has a plurality of movable units, and the driving unit drives the movable units independently so as to change the curvature of the liquid lens or to change the optical axis of the liquid lens.

IPC Classes  ?

  • G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
  • G02B 3/14 - Fluid-filled or evacuated lenses of variable focal length
  • G02B 26/00 - Optical devices or arrangements for the control of light using movable or deformable optical elements
  • G03B 13/36 - Autofocus systems
  • G03B 30/00 - Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
  • H02K 41/035 - DC motors; Unipolar motors

76.

OPTICAL ELEMENT DRIVING DEVICE, CAMERA MODULE, AND CAMERA-EQUIPPED DEVICE

      
Application Number JP2021042783
Publication Number 2022/137938
Status In Force
Filing Date 2021-11-22
Publication Date 2022-06-30
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Osaka, Tomohiko
  • Suzuki, Shun

Abstract

This optical element driving device comprises: a movable part that can hold an optical element for bending incident light; a guide part for guiding movement of the movable part; a drive part for driving the movable part so as to move on the guide part; a rolling body disposed between the movable part and the guide part; and a preload generation part for generating preload to attract the movable part to the guide part side via the rolling body.

IPC Classes  ?

  • G03B 5/00 - Adjustment of optical system relative to image or object surface other than for focusing of general interest for cameras, projectors or printers
  • G03B 15/00 - Special procedures for taking photographs; Apparatus therefor
  • G03B 17/17 - Bodies with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera
  • H04N 5/225 - Television cameras
  • G03B 30/00 - Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles

77.

OPTICAL ELEMENT DRIVING DEVICE, CAMERA MODULE, AND CAMERA-EQUIPPED DEVICE

      
Application Number JP2021042791
Publication Number 2022/137939
Status In Force
Filing Date 2021-11-22
Publication Date 2022-06-30
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Osaka, Tomohiko
  • Suzuki, Shun

Abstract

This optical element driving device comprises: a moveable part which can hold an optical element; a drive part which rotationally drives the moveable part; a fixed part which rotatably supports the moveable part; a plurality of interposed parts which are interposed between the moveable part and the fixed part, and which are driven by the rotational movement of the moveable part; and a spacing-maintaining part which is disposed between the moveable part and the fixed part, and which maintains the spacing between the plurality of interposed parts in the rotational direction of the moveable part.

IPC Classes  ?

  • G03B 5/00 - Adjustment of optical system relative to image or object surface other than for focusing of general interest for cameras, projectors or printers
  • G03B 15/00 - Special procedures for taking photographs; Apparatus therefor
  • G03B 17/17 - Bodies with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera
  • H04N 5/225 - Television cameras
  • G03B 30/00 - Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles

78.

OPTICAL ELEMENT DRIVE DEVICE, CAMERA MODULE, AND CAMERA MOUNTING DEVICE

      
Application Number JP2021042797
Publication Number 2022/137941
Status In Force
Filing Date 2021-11-22
Publication Date 2022-06-30
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Osaka, Tomohiko
  • Suzuki, Shun

Abstract

This optical element drive device comprises: a movable part; a drive unit; a substrate part that can supply power to the movable part; and a power supply path unit that constitutes a power supply path between the substrate part and the movable part by extending so as to connect a substrate-part-side terminal and a movable-part side terminal that are set apart from each other in a second direction, the power supply path unit having in at least a portion a coil part that can extend and contract in accordance with the movement of the movable part.

IPC Classes  ?

  • G03B 5/00 - Adjustment of optical system relative to image or object surface other than for focusing of general interest for cameras, projectors or printers
  • G03B 15/00 - Special procedures for taking photographs; Apparatus therefor
  • G03B 17/17 - Bodies with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera
  • H04N 5/225 - Television cameras
  • G03B 30/00 - Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles

79.

ANOMALY DETECTION DEVICE, ANOMALY DETECTION METHOD, ANOMALY DETECTION PROGRAM, AND SYSTEM FOR DETECTING ANOMALY IN BEARING

      
Application Number JP2021045659
Publication Number 2022/131170
Status In Force
Filing Date 2021-12-10
Publication Date 2022-06-23
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor Kimura,satoshi

Abstract

This anomaly detection device has: a data acquisition unit that acquires a signal that captures the passing vibration of a rolling element; a data processing unit that, using said signal, calculates a feature value indicating the ratio between the amplitude of a frequency indicating the passing vibration of the rolling element and the amplitude of a signal component of the Nth harmonic of a frequency indicating the passing vibration; and an anomaly determination unit that, on the basis of said feature value, determines whether or not the state of a measured object including the rolling element is abnormal.

IPC Classes  ?

  • F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
  • F16C 19/52 - Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
  • F16C 33/58 - Raceways; Race rings
  • F16C 41/00 - Other accessories for bearings
  • G01H 17/00 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the other groups of this subclass
  • G01M 99/00 - Subject matter not provided for in other groups of this subclass

80.

SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE

      
Application Number 17543587
Status Pending
Filing Date 2021-12-06
First Publication Date 2022-06-09
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor Takano, Yoichi

Abstract

A semiconductor integrate circuit device includes: an output transistor connected between a voltage input terminal to which a DC voltage is input and a voltage output terminal; a control circuit that controls on/off of the output transistor; a proportional current generation circuit capable of generating a current proportionally smaller than a current flowing through the output transistor; an overcurrent detection circuit capable of detecting an overcurrent state of an output current by determining whether a current flowing through the output transistor is equal to or greater than a first predetermined current value, based on the current generated by the proportional current generation circuit; and a retry circuit that generates and outputs a signal for intermittently turning off the output transistor in response to the overcurrent detection circuit detecting the overcurrent state.

IPC Classes  ?

  • H03K 17/082 - Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit
  • H02H 3/087 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess current for dc applications
  • G05F 1/573 - Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for protection with overcurrent detector

81.

OPTICAL ELEMENT DRIVING DEVICE, CAMERA MODULE, AND CAMERA-EQUIPPED DEVICE

      
Application Number JP2021035569
Publication Number 2022/113510
Status In Force
Filing Date 2021-09-28
Publication Date 2022-06-02
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor Osaka, Tomohiko

Abstract

Provided are an optical element driving device, a camera module, and a camera-equipped device, whereby it is possible to suppress a decrease in drive performance over time that accompanies wear of an active element or a passive element. The optical element driving device comprises: a fixed part; a movable part positioned apart from the fixed part; a support part for supporting the movable part in relation to the fixed part; and a drive unit (30) having an ultrasonic motor which has a piezoelectric element (32) and an active element (31) that resonates with vibration of the piezoelectric element (32), and a passive element (34) that contacts the active element (31) in a state of being urged thereby and moves relative to the active element (31). Passive-side contact parts (343) of the passive element (34) are formed of a ceramic material having higher hardness than active-side contact parts (312) of the active element (31).

IPC Classes  ?

  • G02B 7/04 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
  • G03B 5/00 - Adjustment of optical system relative to image or object surface other than for focusing of general interest for cameras, projectors or printers
  • G03B 30/00 - Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
  • H02N 2/04 - Constructional details
  • H04N 5/225 - Television cameras
  • H04N 5/232 - Devices for controlling television cameras, e.g. remote control

82.

ELECTRONIC SHELF LABEL SYSTEM

      
Application Number JP2021043337
Publication Number 2022/114108
Status In Force
Filing Date 2021-11-26
Publication Date 2022-06-02
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Miyamoto, Hirokatsu
  • Okada, Tomoyuki
  • Yoshida, Yuya

Abstract

An electronic shelf label system 1 includes: a cluster type network CN that is formed by a plurality of electronic shelf label devices; and an application device 3 that is communicatively connected to the cluster type network CN. The cluster type network CN includes: a shelf label hierarchical layer configured from a plurality of electronic shelf label devices 4 that serve as shelf labels for a plurality of commodities; and a relay hierarchical layer configured from a plurality of electronic shelf label devices 4 for relaying a signal to be transmitted from the application device 3 to any of the plurality of electronic shelf label devices 4 of the shelf label hierarchical layer.

IPC Classes  ?

  • G07G 1/01 - Cash registers - Details for indicating
  • G06Q 30/06 - Buying, selling or leasing transactions

83.

OPTICAL ACTUATOR, CAMERA MODULE, AND CAMERA-EQUIPPED DEVICE

      
Application Number JP2021043624
Publication Number 2022/114181
Status In Force
Filing Date 2021-11-29
Publication Date 2022-06-02
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Osaka, Tomohiko
  • Enta, Yohei

Abstract

An optical actuator that comprises an inside holder that can hold an optical path bending member, an outside holder that supports the inside holder such that the inside holder can pivot around a first axis, and a drive unit that makes the inside holder pivot. Either end part of the inside holder in a direction parallel to the first axis is rotatably supported on the outside holder via a bearing part. The drive unit has: an ultrasonic motor that is supported on the outside holder; and an intermediate part that is supported on the inside holder. The ultrasonic motor has an oscillator that resonates, and the intermediate part has a fan-shaped contact part that contacts the oscillator.

IPC Classes  ?

  • G03B 5/00 - Adjustment of optical system relative to image or object surface other than for focusing of general interest for cameras, projectors or printers
  • G03B 15/00 - Special procedures for taking photographs; Apparatus therefor
  • G03B 17/17 - Bodies with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera
  • H02N 2/12 - Constructional details
  • H04N 5/225 - Television cameras
  • G03B 30/00 - Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
  • G02B 7/198 - Mountings, adjusting means, or light-tight connections, for optical elements for mirrors for mirrors with means for adjusting the mirror relative to its support

84.

DRIVE UNIT, LENS DRIVING DEVICE, CAMERA MODULE, AND CAMERA-EQUIPPED DEVICE

      
Application Number JP2021037359
Publication Number 2022/102306
Status In Force
Filing Date 2021-10-08
Publication Date 2022-05-19
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Suzuki, Shun
  • Sugawara, Masayoshi

Abstract

This drive unit comprises: an ultrasonic motor that converts the oscillation of a piezoelectric element to linear movement; a contact part that contacts a resonating part; a support part that is connected to a moveable part and supports the contact part; and an impelling part which is coupled to the contact part and which impels the contact part toward the resonating part so that the contact part moves in accordance with the resonance of the resonating part and transmits impelling force to the moveable part via the support part.

IPC Classes  ?

  • G02B 7/04 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
  • G03B 17/17 - Bodies with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera
  • G03B 30/00 - Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
  • H02N 2/04 - Constructional details
  • H04N 5/232 - Devices for controlling television cameras, e.g. remote control

85.

OPTICAL ELEMENT DRIVING DEVICE, CAMERA MODULE, AND CAMERA-EQUIPPED DEVICE

      
Application Number JP2021035636
Publication Number 2022/097388
Status In Force
Filing Date 2021-09-28
Publication Date 2022-05-12
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Osaka, Tomohiko
  • Sugawara, Masayoshi
  • Ishikawa, Masahiro
  • Kojima, Shusuke

Abstract

Provided are an optical element driving device, a camera module, and a camera-equipped device which can achieve size reduction and height reduction and improve driving performance and sound-reducing performance. This optical element driving device comprises: a fixed part; a movable part disposed apart from the fixed part; a support part which supports the movable part with respect to the fixed part; and a driving unit which has an ultrasonic motor that converts a vibration motion into a linear motion and a power transmission part that transmits the driving force of the ultrasonic motor to the movable part, and moves the movable part with respect to the fixed part, wherein the power transmission part has a plate which is in contact with a resonance part of the ultrasonic motor, and a damper material is disposed on a second surface side opposite to a first surface which is in contact with the resonance part in the plate.

IPC Classes  ?

  • G02B 7/04 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
  • G02B 7/08 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
  • G03B 5/00 - Adjustment of optical system relative to image or object surface other than for focusing of general interest for cameras, projectors or printers
  • G03B 30/00 - Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
  • H04N 5/225 - Television cameras

86.

OPTICAL ELEMENT DRIVE DEVICE, CAMERA MODULE, AND CAMERA-EQUIPPED DEVICE

      
Application Number JP2021035646
Publication Number 2022/097389
Status In Force
Filing Date 2021-09-28
Publication Date 2022-05-12
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Osaka, Tomohiko
  • Sugawara, Masayoshi
  • Ishikawa, Masahiro
  • Kojima, Shusuke

Abstract

Provided are an optical element drive device, a camera module, and a camera-equipped device that are small and low-profile but also improve drive performance and noise reduction performance. An optical element drive device that comprises a fixed part, a mobile part that is separated from the fixed part in the optical axis direction, a support part that supports the mobile part on the fixed part, a drive unit that moves the mobile part relative to the fixed part within an optical axis orthogonal plane that is orthogonal to the optical axis direction, and a tension coil spring that connects the fixed part and the mobile part and urges the fixed part and the mobile part toward each other. A damper material is provided to the tension coil spring.

IPC Classes  ?

  • G02B 7/04 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
  • G02B 7/08 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
  • G03B 5/00 - Adjustment of optical system relative to image or object surface other than for focusing of general interest for cameras, projectors or printers
  • G03B 30/00 - Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
  • H04N 5/225 - Television cameras
  • H04N 5/232 - Devices for controlling television cameras, e.g. remote control

87.

Secondary battery protection circuit, secondary battery protection apparatus and battery pack

      
Application Number 17648433
Grant Number 11646569
Status In Force
Filing Date 2022-01-20
First Publication Date 2022-05-05
Grant Date 2023-05-09
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor Takeda, Takashi

Abstract

A secondary battery protection circuit for protecting a secondary battery, including: a low-voltage detecting circuit configured to detect a voltage across the secondary battery that is lower than a second voltage for low voltage detection, the second voltage being set to be lower than a first voltage for overdischarge detection; and a switching circuit configured to cause a gate of a charge control NMOS transistor to be fixed at a potential at a high side power supply terminal, upon detecting, by the low-voltage detecting circuit, that the voltage across the secondary battery is lower than the second voltage for low voltage detection.

IPC Classes  ?

  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
  • H02H 7/18 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from norm for accumulators
  • H01M 10/44 - Methods for charging or discharging
  • H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
  • H01M 50/574 - Devices or arrangements for the interruption of current

88.

DISTANCE MEASURING CAMERA

      
Application Number 17428613
Status Pending
Filing Date 2019-12-02
First Publication Date 2022-04-21
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor Nagai, Fumiya

Abstract

A distance measurement camera contains a first optical system OS1 for forming a first subject image, a second optical system OS2 for forming a second subject image, an imaging part S for imaging the first subject image and the second subject image and a distance calculating part 4 for performing calculation depending on image heights of distance measurement target points of the first subject image and the second subject image corresponding to a distance measurement target point of a subject 100 to calculate the distance to the subject 100 based on an image magnification ratio between a magnification of the first subject image and a magnification of the first subject image and a magnification of the second subject image.

IPC Classes  ?

  • G01C 3/02 - Measuring distances in line of sight; Optical rangefinders - Details
  • G06T 7/55 - Depth or shape recovery from multiple images

89.

DETECTION SYSTEM AND DETECTION METHOD

      
Application Number 17646643
Status Pending
Filing Date 2021-12-30
First Publication Date 2022-04-21
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Irie, Takahiko
  • Inamoto, Shigenori
  • Ueda, Kenta

Abstract

A detection system contains a sensing device including a vibration unit for applying vibration to the inspection target, the vibration unit attached to the inspection target, a driving circuit for supplying an electric signal to the vibration unit for driving the vibration unit and a sensor for detecting vibration of the inspection target caused by the vibration applied from the vibration unit; and a detection processing device for receiving vibration information related to the vibration of the inspection target detected by the sensor from the sensing device and detecting the state change of the inspection target based on the vibration information. The vibration unit includes a coil, a spring, and a magnet.

IPC Classes  ?

  • G01N 29/12 - Analysing solids by measuring frequency or resonance of acoustic waves

90.

Motor driving circuit and motor driving device

      
Application Number 17645129
Grant Number 11522482
Status In Force
Filing Date 2021-12-20
First Publication Date 2022-04-14
Grant Date 2022-12-06
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Hagimori, Hitoshi
  • Nakano, Itsuki

Abstract

A motor driving circuit includes a wiring pattern formed in a circuit board, which is configured such that electrical current flowing into a motor flows through the wiring pattern; and a current measurement circuit configured to measure an amount of electrical current flowing through the wiring pattern, based on an amount of voltage drop occurring in response to flowing of the electrical current. The motor driving circuit includes a drive unit configured to adjust a current measurement value measured by the current measurement circuit, based on first adjustment data that compensates for variation in resistance of the wiring pattern caused by an individual difference in the circuit board, and to drive the motor based on an adjusted current value which is the adjusted current measurement value.

IPC Classes  ?

  • H02P 21/22 - Current control, e.g. using a current control loop
  • H02P 29/60 - Controlling or determining the temperature of the motor or of the drive
  • H05K 1/18 - Printed circuits structurally associated with non-printed electric components
  • G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
  • G01R 19/32 - Compensating for temperature change

91.

Electrical connector and method for mounting electrical connector

      
Application Number 17474109
Grant Number 11710920
Status In Force
Filing Date 2021-09-14
First Publication Date 2022-03-31
Grant Date 2023-07-25
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Akaike, Takahiro
  • Goto, Satoshi
  • Suzuki, Isao

Abstract

The plug shell of the electrical connector includes the accommodation portion for accommodating the contact pin and the housing that holds the contact pin, the insertion port for inserting the contact pin and the housing into the accommodation portion, the lid member for closing the insertion port, and the hold mechanism for holding the lid member. The hold mechanism includes the pedestal, on which the lid member is placed, and the pair of hold pieces, which hold the lid member on the pedestal by pressing. The pair of hold pieces press the end portions of the lid member toward the pedestal, so that thereby a stress that urges the end portions to become distant from the pedestal is generated in the lid member.

IPC Classes  ?

  • H01R 12/57 - Fixed connections for rigid printed circuits or like structures characterised by the terminals surface mounting terminals
  • H01R 13/05 - Resilient pins or blades
  • H01R 13/504 - Bases; Cases composed of different pieces different pieces being moulded, cemented, welded, e.g. ultrasonic, or swaged together
  • H01R 13/516 - Means for holding or embracing insulating body, e.g. casing
  • H01R 13/631 - Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure for engagement only
  • H01R 24/86 - Parallel contacts arranged about a common axis

92.

Driving unit, optical-element driving device, camera module, and camera-mounted device

      
Application Number 17449097
Grant Number 11582390
Status In Force
Filing Date 2021-09-28
First Publication Date 2022-03-31
Grant Date 2023-02-14
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Itagaki, Yoichi
  • Watanabe, Taro

Abstract

The driving unit includes: a first contact portion and a second contact portion that move relatively to each other while making contact with each other during driving; in which the second contact portion includes a coating layer at a contact face with the first contact portion, and the first contact portion and the second contact portion generate heat along with relative movement to vaporize a worn-away part of the coating layer.

IPC Classes  ?

  • H04N 5/232 - Devices for controlling television cameras, e.g. remote control
  • G02B 27/64 - Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
  • G02B 7/09 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
  • G03B 5/02 - Lateral adjustment of lens

93.

PARKING DETECTION DEVICE AND PARKING DETECTION METHOD

      
Application Number JP2021034459
Publication Number 2022/065265
Status In Force
Filing Date 2021-09-21
Publication Date 2022-03-31
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor Takada, Yuji

Abstract

This parking detection device comprises: a magnetism detection unit that, in a first parking area, detects magnetism (first magnetism in a height direction in the first parking area, second magnetism in a first intersecting direction that intersects with the height direction, and third magnetism in a second intersecting direction that intersects with the height direction and that is different from the first intersecting direction); a difference value calculation unit that calculates a difference value, which is the difference between the detected magnetism and magnetism when the first parking area is empty; and a determination unit that, when the calculated difference value repeatedly increases and decreases, determines that a vehicle that has entered the first parking area has moved to a second parking area adjacent to the first parking area.

IPC Classes  ?

  • G08G 1/14 - Traffic control systems for road vehicles indicating individual free spaces in parking areas

94.

PARKING DETECTION DEVICE AND PARKING DETECTION METHOD

      
Application Number JP2021034460
Publication Number 2022/065266
Status In Force
Filing Date 2021-09-21
Publication Date 2022-03-31
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor Takada, Yuji

Abstract

This parking detection device comprises: a magnetism detection unit that detects first magnetism in the height direction of a first parking area and second magnetism in a direction intersecting the height direction; a time difference calculation unit that calculates a time difference between a point in time when a first changing rate, which is the rate at which the first magnetism changes, increases and then returns to the state before the increase, and a point in time when a second changing rate, which is the rate at which the second magnetism changes, increases and then returns to the state before the increase; and a determination unit that determines, on the basis of the time difference, parking states in the first parking area and a second parking area adjacent to the first parking area.

IPC Classes  ?

  • G08G 1/14 - Traffic control systems for road vehicles indicating individual free spaces in parking areas

95.

PARKING DETECTION DEVICE AND PARKING DETECTION METHOD

      
Application Number JP2021033856
Publication Number 2022/059693
Status In Force
Filing Date 2021-09-15
Publication Date 2022-03-24
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor Takada, Yuji

Abstract

This parking detection device is provided with: a magnetism detection unit for detecting magnetism in a first parking area; a predicted value calculation unit for calculating a first predicted value corresponding to an output value of the magnetism detection unit in a first case, in which the first parking area is in a vacant state and a second parking area around the first parking area is in a vacant state, and a second predicted value corresponding to an output value of the magnetism detection unit in a second case, in which the first parking area is in the vacant state and the second parking area is in a parked vehicle state; and a vacancy determination unit for determining whether the first parking area is in the vacant state, on the basis of the output value of the magnetic sensor and the first predicted value or second predicted value.

IPC Classes  ?

  • G08G 1/14 - Traffic control systems for road vehicles indicating individual free spaces in parking areas

96.

LENS DRIVING DEVICE, CAMERA MODULE, AND CAMERA MOUNTING DEVICE

      
Application Number 17423975
Status Pending
Filing Date 2019-12-19
First Publication Date 2022-03-24
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Osaka, Tomohiko
  • Edamatsu, Shigeki

Abstract

A lens driving device includes a first holder configured to hold a lens section, a second holder provided around a lens holder, a support member that elastically supports the first holder with respect to the second holder, and an actuator that includes a coil with a winding so arranged on the first holder as to surround the lens section, and a magnet so provided on the second holder as to face the coil, and is configured to move the first holder with respect to the second holder in a direction of an optical axis. An end portion of the winding is provided with an upright terminal that is set upright with respect to a winding plane of the winding and electrically connected to the support member with a fixing material. The first holder includes a terminal positioning part that internally accepts the upright terminal.

IPC Classes  ?

  • G02B 7/09 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
  • G02B 27/64 - Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
  • G03B 5/00 - Adjustment of optical system relative to image or object surface other than for focusing of general interest for cameras, projectors or printers
  • G03B 13/36 - Autofocus systems
  • H04N 5/225 - Television cameras
  • H04N 5/232 - Devices for controlling television cameras, e.g. remote control

97.

Power supply semiconductor integrated circuit including a short-circuit-fault detection circuit that detects a short circuit of the voltage-output terminal

      
Application Number 17458048
Grant Number 11768510
Status In Force
Filing Date 2021-08-26
First Publication Date 2022-03-10
Grant Date 2023-09-26
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Sakurai, Kohei
  • Maki, Shinichiro

Abstract

A power supply semiconductor IC includes: an output transistor connected between a voltage-input terminal and a voltage-output terminal; a control circuit that controls the output transistor based on a feedback voltage of an output voltage; a current-limit circuit that limits an output current of the output transistor such that the output current is not equal to or greater than a current limit; a first transistor constituting a current-mirror circuit with the output transistor; a short-circuit-fault detection circuit that detects a short circuit of the voltage-output terminal based on a voltage across a resistor connected in series to the first transistor; and a first output terminal that outputs a detection result of the short-circuit-fault detection circuit. The current limit is within a detection range of the short-circuit-fault detection circuit. The short-circuit-fault detection circuit detects a short circuit of the voltage-output terminal even while the current limit circuit limits the output current.

IPC Classes  ?

  • G05F 1/575 - Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices characterised by the feedback circuit
  • G05F 1/571 - Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for protection with overvoltage detector
  • G05F 1/573 - Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for protection with overcurrent detector
  • G05F 3/26 - Current mirrors

98.

Power supply semiconductor integrated circuit

      
Application Number 17458113
Grant Number 11474161
Status In Force
Filing Date 2021-08-26
First Publication Date 2022-03-10
Grant Date 2022-10-18
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Sakurai, Kohei
  • Maki, Shinichiro

Abstract

A power supply semiconductor integrated circuit includes an output transistor, a control circuit, a first-fault detection circuit, a second-fault detection circuit, a delay circuit, and a latch circuit. The output transistor is connected between a voltage-input terminal to which a DC voltage is input and a voltage-output terminal. The control circuit controls the output transistor. The first-fault detection circuit detects a first fault. The second-fault detection circuit detects a second fault different from the first fault. The delay circuit delays an output of the first-fault detection circuit and an output of the second-fault detection circuit. The latch circuit captures and holds an output of the delay circuit. The delay circuit includes: a constant current source for charging a delay capacitor; a discharge switch for discharging the delay capacitor; and a voltage comparator circuit that compares a charge voltage across the delay capacitor and a predetermined voltage.

IPC Classes  ?

  • G05F 1/10 - Regulating voltage or current
  • G05F 3/02 - Regulating voltage or current
  • G01R 31/52 - Testing for short-circuits, leakage current or ground faults
  • H03K 3/037 - Bistable circuits
  • G05F 1/56 - Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
  • G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
  • H03K 5/24 - Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude
  • H03K 5/00 - Manipulation of pulses not covered by one of the other main groups of this subclass

99.

CURRENT DETECTING CIRCUIT AND SWITCHING CIRCUIT

      
Application Number 17446480
Status Pending
Filing Date 2021-08-31
First Publication Date 2022-03-10
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor
  • Takano, Yoichi
  • Sakurai, Kohei

Abstract

A current detecting circuit includes a first switching element, a second switching element, and a third switching element electrically coupled in series with the first switching element. An output side of the third switching element is electrically coupled to an output terminal. The current detecting circuit includes a current amplifier configured to detect a difference between a first output voltage of the first switching element and a second output voltage of the second switching element. The current amplifier outputs a relative current to be used for detecting an output current that flows out from the output terminal. A ratio of resistance associated with the first switching element to resistance associated with the second switching element is n:1.

IPC Classes  ?

  • G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
  • H03K 17/16 - Modifications for eliminating interference voltages or currents

100.

Push switch

      
Application Number 17407057
Grant Number 11462370
Status In Force
Filing Date 2021-08-19
First Publication Date 2022-03-10
Grant Date 2022-10-04
Owner MITSUMI ELECTRIC CO., LTD. (Japan)
Inventor Nakamura, Tetsuya

Abstract

The push switch 1 includes a case 2, a pair of contacts 3 and 4, a movable contact 5, a cap 7 covering the case 2 from the upper side, and a cover 8 pressing the cap 7 from the upper side. The cover 8 includes a top plate 81 and a pair of extending portions 83 extending downward from opposite sides of the top plate 81. Each of the extending portions 83 of the cover 8 has a pair of leg portions 831 extending downward and a bridge portion 832 connecting the pair of leg portions 831. The bridge portion 832 has a pair of inclined portions 8321 formed at the lower end portion of the bridge portion 832 and inclined outward, and a cutout portion 8322 formed between the pair of inclined portions 8321.

IPC Classes  ?

  • H01H 13/04 - Cases; Covers
  • H01H 13/14 - Operating parts, e.g. push-button
  • H01H 13/10 - Bases; Stationary contacts mounted thereon
  • H01H 13/06 - Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
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