- 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 5/32 - Structure or shape of the active regionMaterials 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: 674
10-year publication summary
|
48
|
52
|
70
|
66
|
62
|
61
|
41
|
42
|
29
|
16
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kyocera Sld Laser, Inc. | 298 |
108 |
| OSRAM OLED GmbH | 1776 |
28 |
| The Regents of the University of California | 19961 |
18 |
| OSRAM Opto Semiconductors GmbH | 3311 |
18 |
| Sony Corporation | 31025 |
15 |
| Mitsubishi Electric Corporation | 46197 |
13 |
| Sensor Electronic Technology, Inc. | 469 |
13 |
| Sumitomo Electric Industries, Ltd. | 15529 |
12 |
| The Furukawa Electric Co., Ltd. | 3667 |
12 |
| Ricoh Company, Ltd. | 13283 |
10 |
| Acorn Semi, LLC | 45 |
10 |
| Nuvoton Technology Corporation Japan | 615 |
10 |
| Ams-osram International GmbH | 1007 |
10 |
| Xerox Corporation | 7002 |
9 |
| International Business Machines Corporation | 61305 |
9 |
| Nichia Corporation | 3713 |
9 |
| Panasonic Intellectual Property Management Co., Ltd. | 31562 |
8 |
| Seoul Semiconductor Co., Ltd. | 1081 |
8 |
| Hitachi, Ltd. | 15513 |
7 |
| Infinera Corporation | 635 |
7 |
| Other owners | 340 |