- All sections
- H - Electricity
- H04B - Transmission
- H04B 10/152 - Non-coherent direct-detection systems
Patent holdings for IPC class H04B 10/152
Total number of patents in this class: 21
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
|
|---|---|---|
| NEC Corporation | 37491 |
6 |
| Fujitsu Limited | 16807 |
3 |
| Fujitsu Optical Components Limited | 298 |
2 |
| Mitsubishi Electric Corporation | 48409 |
2 |
| Panasonic Corporation | 18658 |
1 |
| Sumitomo Electric Industries, Ltd. | 16404 |
1 |
| Oki Electric Industry Co., Ltd. | 1567 |
1 |
| Nippon Telegraph and Telephone Corporation | 15911 |
1 |
| Fujikura Ltd. | 3128 |
1 |
| The Furukawa Electric Co., Ltd. | 3712 |
1 |
| Georg-Simon-Ohm-Hochschule für angewandte Wissenschaften - Fachhochschule Nürnberg | 7 |
1 |
| Sumitomo Osaka Cement Co., Ltd. | 916 |
1 |
| Other owners | 0 |