- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 5/70 - Circuit details for electroluminescent devices
Patent holdings for IPC class H04N 5/70
Total number of patents in this class: 53
10-year publication summary
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2
|
3
|
3
|
2
|
2
|
3
|
0
|
2
|
3
|
2
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Corporation | 30080 |
12 |
| Sony Group Corporation | 15934 |
4 |
| Samsung Display Co., Ltd. | 39012 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 34403 |
3 |
| Magnolia Blue Corporation | 1155 |
3 |
| Semiconductor Energy Laboratory Co., Ltd. | 11890 |
2 |
| Global OLED Technology LLC | 433 |
2 |
| LG Electronics Inc. | 75973 |
1 |
| LG Display Co., Ltd. | 15038 |
1 |
| Canon Inc. | 44222 |
1 |
| Panasonic Corporation | 18751 |
1 |
| Seiko Epson Corporation | 20406 |
1 |
| Industrial Technology Research Institute | 5196 |
1 |
| Infineon Technologies AG | 8418 |
1 |
| Nikon Corporation | 7231 |
1 |
| NTT DoCoMo, Inc. | 14952 |
1 |
| Casio Computer Co., Ltd. | 3494 |
1 |
| ZTE Corporation | 44326 |
1 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8470 |
1 |
| Hamamatsu Photonics K.K. | 4703 |
1 |
| Other owners | 11 |