- All sections
- H - Electricity
- H01S - Devices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light; devices using stimulated emission of electromagnetic radiation in wave ranges other than optical
- H01S 5/343 - Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers in AIIIBV compounds, e.g. AlGaAs-laser
Patent holdings for IPC class H01S 5/343
Total number of patents in this class: 1975
10-year publication summary
181
|
147
|
161
|
173
|
183
|
218
|
185
|
158
|
147
|
34
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Kyocera Sld Laser, Inc. | 281 |
188 |
Sony Corporation | 32931 |
114 |
Sumitomo Electric Industries, Ltd. | 14131 |
109 |
The Regents of the University of California | 18943 |
52 |
Panasonic Corporation | 20786 |
38 |
OSRAM Opto Semiconductors GmbH | 3390 |
38 |
Hamamatsu Photonics K.K. | 4161 |
37 |
Nichia Corporation | 3394 |
37 |
The Furukawa Electric Co., Ltd. | 3486 |
33 |
International Business Machines Corporation | 60644 |
32 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
32 |
OSRAM OLED GmbH | 1841 |
31 |
Nuvoton Technology Corporation Japan | 420 |
31 |
FUJIFILM Business Innovation Corp. | 7395 |
29 |
Rohm Co., Ltd. | 5843 |
28 |
Sony Group Corporation | 10730 |
28 |
Stanley Electric Co., Ltd. | 1102 |
27 |
Mitsubishi Electric Corporation | 43934 |
24 |
Sony Semiconductor Solutions Corporation | 8770 |
23 |
Seiko Epson Corporation | 18724 |
22 |
Other owners | 1022 |