- 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: 7
10-year publication summary
|
0
|
0
|
0
|
0
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0
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1
|
0
|
0
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5
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Group Corporation | 10730 |
2 |
| Samsung Electronics Co., Ltd. | 131630 |
1 |
| NTT DoCoMo, Inc. | 11501 |
1 |
| Canon Kabushiki Kaisha | 6884 |
1 |
| Alps Alpine Co., Ltd. | 1831 |
1 |
| i-PRO Co., Ltd. | 384 |
1 |
| Other owners | 0 |