- 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: 167
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 | 20050 |
56 |
| Hitachi, Ltd. | 15556 |
11 |
| Hitachi Plasma Display Limited | 93 |
11 |
| Asahi Glass Company, Limited | 2760 |
8 |
| ULVAC, Inc. | 1378 |
8 |
| Fujitsu Hitachi Plasma Display Limited | 24 |
6 |
| Nippon Electric Glass Co., Ltd. | 2468 |
6 |
| Matsushita Electric Industrial Co., Ltd. | 1238 |
5 |
| Central Glass Company, Limited | 1271 |
4 |
| National Institute for Materials Science | 1105 |
4 |
| Sumitomo Chemical Company, Limited | 9047 |
3 |
| JSR Corporation | 2525 |
3 |
| Ledvance LLC | 314 |
3 |
| 3m Innovative Properties Company | 17795 |
2 |
| Hitachi Chemical Company, Ltd. | 2340 |
2 |
| Toray Industries, Inc. | 6976 |
2 |
| Sekisui Chemical Co., Ltd. | 3441 |
2 |
| Ube Industries, Ltd. | 838 |
2 |
| Sharp Kabushiki Kaisha | 18716 |
2 |
| Seiko Epson Corporation | 19510 |
1 |
| Other owners | 26 |