- All sections
- H - Electricity
- H04B - Transmission
- H04B 10/28 - using a single device as a light source or a light receiver
Patent holdings for IPC class H04B 10/28
Total number of patents in this class: 31
10-year publication summary
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 48409 |
6 |
| NEC Corporation | 37491 |
4 |
| Fujitsu Optical Components Limited | 298 |
2 |
| Nippon Telegraph and Telephone Corporation | 15911 |
2 |
| Hewlett-Packard Development Company, L.P. | 25121 |
1 |
| Hitachi, Ltd. | 16221 |
1 |
| Koninklijke Philips Electronics N.V. | 7115 |
1 |
| Olympus Corporation | 12900 |
1 |
| Omron Corporation | 7434 |
1 |
| Advantest Corporation | 1666 |
1 |
| NTT Electronics Corporation | 256 |
1 |
| Fujikura Ltd. | 3128 |
1 |
| The Furukawa Electric Co., Ltd. | 3712 |
1 |
| Commonwealth Scientific and Industrial Research Organisation | 1650 |
1 |
| Kabushiki Kaisha Audio-Technica | 120 |
1 |
| Kabushiki Kaisha Toyota Chuo Kenkyusho | 707 |
1 |
| LG-Ericsson Co., Ltd. | 12 |
1 |
| Menara Networks, Inc. | 2 |
1 |
| National University Corporation Shizuoka University | 383 |
1 |
| Firefly Green Technologies, Inc. | 4 |
1 |
| Other owners | 1 |