- 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 5/32 - Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- hetero-structures
Patent holdings for IPC class H01S 5/32
Total number of patents in this class: 633
10-year publication summary
|
66
|
48
|
52
|
70
|
66
|
62
|
59
|
42
|
39
|
11
|
| 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 |
105 |
| OSRAM OLED GmbH | 1841 |
28 |
| The Regents of the University of California | 18943 |
19 |
| OSRAM Opto Semiconductors GmbH | 3390 |
18 |
| Sony Corporation | 32931 |
15 |
| Sensor Electronic Technology, Inc. | 471 |
13 |
| Sumitomo Electric Industries, Ltd. | 14131 |
12 |
| Mitsubishi Electric Corporation | 43934 |
12 |
| The Furukawa Electric Co., Ltd. | 3486 |
11 |
| Ricoh Company, Ltd. | 13266 |
10 |
| Xerox Corporation | 7503 |
9 |
| International Business Machines Corporation | 60644 |
9 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
8 |
| Seoul Semiconductor Co., Ltd. | 1073 |
8 |
| Acorn Semi, LLC | 49 |
8 |
| Hitachi, Ltd. | 16452 |
7 |
| Infinera Corporation | 620 |
7 |
| FUJIFILM Business Innovation Corp. | 7395 |
7 |
| Nichia Corporation | 3394 |
6 |
| Lumentum Japan, Inc. | 240 |
6 |
| Other owners | 315 |