- 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 5/12 - Construction or shape of the optical resonator the resonator having a periodic structure, e.g. in distributed feedback [DFB] lasers
Patent holdings for IPC class H01S 5/12
Total number of patents in this class: 1176
10-year publication summary
|
81
|
109
|
91
|
98
|
112
|
99
|
70
|
67
|
77
|
59
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Telegraph and Telephone Corporation | 15911 |
55 |
| Sumitomo Electric Industries, Ltd. | 16404 |
46 |
| Hamamatsu Photonics K.K. | 4726 |
41 |
| Lumentumradiant GmbH | 178 |
41 |
| Mitsubishi Electric Corporation | 48409 |
37 |
| Huawei Technologies Co., Ltd. | 125107 |
34 |
| Sumitomo Electric Device Innovations, Inc. | 476 |
27 |
| The Furukawa Electric Co., Ltd. | 3712 |
23 |
| II-VI Delaware, Inc. | 1621 |
22 |
| Fujitsu Limited | 16807 |
17 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11136 |
15 |
| Kyoto University | 2941 |
14 |
| nLIGHT, Inc. | 420 |
14 |
| Rockley Photonics Limited | 335 |
14 |
| Wells Fargo Bank, National Association, AS Collateral Agent | 889 |
13 |
| Samsung Electronics Co., Ltd. | 159298 |
12 |
| Electronics and Telecommunications Research Institute | 9701 |
12 |
| Toshiba Corporation | 12732 |
10 |
| Nichia Corporation | 3895 |
10 |
| Infinera Corporation | 635 |
10 |
| Other owners | 709 |