- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 5/18 - Circuitry for reinsertion of DC and slowly varying components of signalCircuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit
Patent holdings for IPC class H04N 5/18
Total number of patents in this class: 31
10-year publication summary
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2
|
4
|
4
|
1
|
1
|
0
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0
|
0
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0
|
0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Corporation | 18896 |
4 |
| Samsung Electronics Co., Ltd. | 158337 |
3 |
| Semiconductor Components Industries, L.L.C. | 5261 |
2 |
| Mitsumi Electric Co., Ltd. | 1138 |
2 |
| Disney Enterprises, Inc. | 6236 |
1 |
| LG Electronics Inc. | 75807 |
1 |
| Sony Corporation | 30128 |
1 |
| Toyota Motor Corporation | 35906 |
1 |
| Nikon Corporation | 7236 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 34145 |
1 |
| Mediatek Inc. | 5379 |
1 |
| Amazon Technologies, Inc. | 28182 |
1 |
| JVC Kenwood Corporation | 3136 |
1 |
| Novatek Microelectronics Corp. | 1459 |
1 |
| Boe Technology Group Co., Ltd. | 44250 |
1 |
| Beijing BOE Display Technology Co., Ltd. | 2998 |
1 |
| Codex Corporation | 23 |
1 |
| Sigma Corporation | 71 |
1 |
| Phase One A/S | 16 |
1 |
| Sharp Kabushiki Kaisha | 18520 |
1 |
| Other owners | 4 |