- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 11/02 - Details, e.g. gas filling, shape of vessel
Patent holdings for IPC class H01J 11/02
Total number of patents in this class: 173
10-year publication summary
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Corporation | 20124 |
56 |
| Hitachi, Ltd. | 15476 |
11 |
| Hitachi Plasma Display Limited | 93 |
11 |
| Matsushita Electric Industrial Co., Ltd. | 1555 |
8 |
| Asahi Glass Company, Limited | 2792 |
8 |
| Fujitsu Hitachi Plasma Display Limited | 45 |
8 |
| ULVAC, Inc. | 1380 |
8 |
| Nippon Electric Glass Co., Ltd. | 2455 |
6 |
| Central Glass Company, Limited | 1263 |
4 |
| National Institute for Materials Science | 1104 |
4 |
| Sumitomo Chemical Company, Limited | 9047 |
3 |
| JSR Corporation | 2514 |
3 |
| Ledvance LLC | 320 |
3 |
| 3m Innovative Properties Company | 17849 |
2 |
| Hitachi Chemical Company, Ltd. | 2352 |
2 |
| Toray Industries, Inc. | 6936 |
2 |
| Sekisui Chemical Co., Ltd. | 3386 |
2 |
| Ube Industries, Ltd. | 850 |
2 |
| Sharp Kabushiki Kaisha | 18764 |
2 |
| Seiko Epson Corporation | 19327 |
1 |
| Other owners | 27 |