- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 23/40 - Circuit details for pick-up tubes
Patent holdings for IPC class H04N 23/40
Total number of patents in this class: 21
10-year publication summary
|
0
|
0
|
0
|
1
|
0
|
0
|
5
|
7
|
2
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Olympus Medical Systems Corp. | 1983 |
4 |
| Canon Kabushiki Kaisha | 7373 |
3 |
| Sony Group Corporation | 15934 |
3 |
| Google LLC | 44743 |
2 |
| Samsung Electronics Co., Ltd. | 158842 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 34403 |
1 |
| NTT DoCoMo, Inc. | 14952 |
1 |
| Hoya Corporation | 2690 |
1 |
| FANUC Corporation | 7341 |
1 |
| Sony Semiconductor Solutions Corporation | 11823 |
1 |
| Alps Alpine Co., Ltd. | 2324 |
1 |
| i-PRO Co., Ltd. | 405 |
1 |
| Actutek Corporation | 852 |
1 |
| Other owners | 0 |