- All sections
- H - Electricity
- H01S - Devices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate lightdevices using stimulated emission of electromagnetic radiation in wave ranges other than optical
- H01S 5/042 - Electrical excitation
Patent holdings for IPC class H01S 5/042
Total number of patents in this class: 2995
10-year publication summary
|
154
|
219
|
268
|
322
|
336
|
368
|
315
|
283
|
275
|
146
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Semiconductor Solutions Corporation | 10467 |
97 |
| Kyocera Sld Laser, Inc. | 298 |
82 |
| OSRAM Opto Semiconductors GmbH | 3311 |
81 |
| Mitsubishi Electric Corporation | 46127 |
79 |
| Lumentum Operations LLC | 729 |
79 |
| OSRAM OLED GmbH | 1778 |
76 |
| Sony Corporation | 31036 |
73 |
| Sumitomo Electric Industries, Ltd. | 15495 |
69 |
| Nichia Corporation | 3705 |
56 |
| Ams-osram International GmbH | 994 |
55 |
| FUJIFILM Business Innovation Corp. | 7592 |
54 |
| II-VI Delaware, Inc. | 1676 |
40 |
| Rohm Co., Ltd. | 6459 |
39 |
| TRUMPF Photonic Components GmbH | 196 |
39 |
| Sony Group Corporation | 13851 |
39 |
| Nippon Telegraph and Telephone Corporation | 17346 |
36 |
| Hamamatsu Photonics K.K. | 4418 |
35 |
| Apple Inc. | 54937 |
33 |
| Panasonic Intellectual Property Management Co., Ltd. | 31475 |
32 |
| Ricoh Company, Ltd. | 13279 |
29 |
| Other owners | 1872 |