- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 5/20 - Circuitry for controlling amplitude response
Patent holdings for IPC class H04N 5/20
Total number of patents in this class: 435
10-year publication summary
|
44
|
43
|
52
|
35
|
30
|
24
|
17
|
11
|
6
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Intellectual Property Management Co., Ltd. | 32675 |
75 |
| Sony Corporation | 30735 |
40 |
| B1 Institute of Image Technology, Inc. | 396 |
23 |
| Dolby Laboratories Licensing Corporation | 4215 |
17 |
| Koninklijke Philips N.V. | 25222 |
16 |
| Apple Inc. | 56633 |
15 |
| Sony Group Corporation | 14674 |
13 |
| Samsung Electronics Co., Ltd. | 149838 |
12 |
| Canon Inc. | 41306 |
12 |
| Sharp Kabushiki Kaisha | 18590 |
12 |
| Microsoft Technology Licensing, LLC | 54394 |
9 |
| Panasonic Corporation | 19924 |
8 |
| Olympus Corporation | 13070 |
7 |
| Sony Semiconductor Solutions Corporation | 10923 |
6 |
| ViXS Systems, Inc. | 107 |
6 |
| Qualcomm Incorporated | 88095 |
4 |
| Intel Corporation | 46510 |
4 |
| FUJIFILM Corporation | 29911 |
4 |
| Mitsubishi Electric Corporation | 47131 |
4 |
| Pioneer Corporation | 4103 |
4 |
| Other owners | 144 |