- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; deaf-aid sets; public address systems
- H04R 7/10 - Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
Patent holdings for IPC class H04R 7/10
Total number of patents in this class: 249
10-year publication summary
|
22
|
27
|
19
|
36
|
26
|
20
|
35
|
17
|
25
|
7
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Goertek Inc. | 2477 |
41 |
| Infineon Technologies AG | 8189 |
11 |
| Tesa SE | 1011 |
7 |
| USound GmbH | 79 |
6 |
| Murata Manufacturing Co., Ltd. | 22355 |
5 |
| Bose Corporation | 2880 |
5 |
| AAC Technologies Pte. Ltd. | 1436 |
5 |
| Agc, Inc. | 4029 |
5 |
| Warwick Acoustics Limited | 12 |
5 |
| LG Display Co., Ltd. | 11907 |
4 |
| FUJIFILM Corporation | 27102 |
4 |
| Rohm Co., Ltd. | 5843 |
4 |
| 4A Manufacturing GmbH | 10 |
4 |
| Panasonic Automotive Systems Co., Ltd. | 1440 |
4 |
| Samsung Display Co., Ltd. | 30585 |
3 |
| Sony Corporation | 32931 |
3 |
| Robert Bosch GmbH | 40953 |
3 |
| Kyocera Corporation | 12735 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
3 |
| Microsoft Technology Licensing, LLC | 51439 |
3 |
| Other owners | 121 |