- 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: 174
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 | 20180 |
56 |
| Hitachi, Ltd. | 15416 |
11 |
| Hitachi Plasma Display Limited | 93 |
11 |
| Matsushita Electric Industrial Co., Ltd. | 1871 |
8 |
| Asahi Glass Company, Limited | 2815 |
8 |
| Fujitsu Hitachi Plasma Display Limited | 55 |
8 |
| ULVAC, Inc. | 1387 |
8 |
| Nippon Electric Glass Co., Ltd. | 2444 |
6 |
| Central Glass Company, Limited | 1263 |
4 |
| National Institute for Materials Science | 1109 |
4 |
| Hitachi Chemical Company, Ltd. | 2360 |
3 |
| Sumitomo Chemical Company, Limited | 9002 |
3 |
| JSR Corporation | 2507 |
3 |
| Ledvance LLC | 322 |
3 |
| 3m Innovative Properties Company | 17842 |
2 |
| Toray Industries, Inc. | 6886 |
2 |
| Sekisui Chemical Co., Ltd. | 3369 |
2 |
| Ube Industries, Ltd. | 853 |
2 |
| Sharp Kabushiki Kaisha | 18813 |
2 |
| Seiko Epson Corporation | 19261 |
1 |
| Other owners | 27 |