- 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: 137
10-year publication summary
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Corporation | 18962 |
53 |
| Hitachi, Ltd. | 16113 |
10 |
| Hitachi Plasma Display Limited | 59 |
10 |
| Asahi Glass Company, Limited | 2619 |
5 |
| ULVAC, Inc. | 1343 |
5 |
| Central Glass Company, Limited | 1295 |
4 |
| Sumitomo Chemical Company, Limited | 8968 |
3 |
| JSR Corporation | 2558 |
3 |
| Ledvance LLC | 311 |
3 |
| National Institute for Materials Science | 1086 |
3 |
| Nippon Electric Glass Co., Ltd. | 2558 |
3 |
| 3m Innovative Properties Company | 17481 |
2 |
| Toray Industries, Inc. | 7111 |
2 |
| Sekisui Chemical Co., Ltd. | 3619 |
2 |
| Sharp Kabushiki Kaisha | 18523 |
2 |
| Seiko Epson Corporation | 20259 |
1 |
| Hitachi Chemical Company, Ltd. | 2241 |
1 |
| Nitto Denko Corporation | 8540 |
1 |
| Kyocera Corporation | 14383 |
1 |
| Shin-Etsu Chemical Co., Ltd. | 6109 |
1 |
| Other owners | 22 |