- 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 5/323 - Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- hetero-structures in AIIIBV compounds, e.g. AlGaAs-laser
Patent holdings for IPC class H01S 5/323
Total number of patents in this class: 730
10-year publication summary
|
48
|
57
|
63
|
67
|
73
|
76
|
53
|
51
|
56
|
9
|
| 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 |
58 |
| OSRAM Opto Semiconductors GmbH | 3390 |
50 |
| OSRAM OLED GmbH | 1841 |
45 |
| Nichia Corporation | 3394 |
38 |
| Sumitomo Electric Industries, Ltd. | 14131 |
21 |
| Ams-osram International GmbH | 466 |
21 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
19 |
| Sony Corporation | 32931 |
18 |
| Mitsubishi Electric Corporation | 43934 |
18 |
| Stanley Electric Co., Ltd. | 1102 |
13 |
| International Business Machines Corporation | 60644 |
12 |
| Panasonic Corporation | 20786 |
8 |
| Rohm Co., Ltd. | 5843 |
8 |
| NEC Corporation | 32703 |
7 |
| Lumileds LLC | 1827 |
7 |
| Nuvoton Technology Corporation Japan | 420 |
7 |
| Samsung Electronics Co., Ltd. | 131630 |
6 |
| Sumitomo Chemical Company, Limited | 8808 |
6 |
| Showa Denko K.K. | 2539 |
6 |
| Mitsubishi Chemical Corporation | 4313 |
6 |
| Other owners | 356 |