- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 11/22 - Electrodes, e.g. special shape, material or configuration
Patent holdings for IPC class H01J 11/22
Total number of patents in this class: 119
10-year publication summary
|
2
|
1
|
1
|
1
|
1
|
2
|
0
|
1
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Corporation | 20180 |
52 |
| Matsushita Electric Industrial Co., Ltd. | 1871 |
18 |
| Hitachi, Ltd. | 15416 |
8 |
| Sumitomo Chemical Company, Limited | 9002 |
5 |
| Central Glass Company, Limited | 1263 |
5 |
| Nihon Yamamura Glass Co., Ltd. | 138 |
4 |
| Nippon Electric Glass Co., Ltd. | 2444 |
3 |
| Tateho Chemical Industries Co., Ltd. | 61 |
3 |
| Applied Materials, Inc. | 18383 |
2 |
| Asahi Glass Company, Limited | 2815 |
2 |
| Hitachi Plasma Display Limited | 93 |
2 |
| Wuxi Vision Peak Technology Co., Ltd | 25 |
2 |
| LG Electronics Inc. | 72357 |
1 |
| Hitachi Chemical Company, Ltd. | 2360 |
1 |
| Semiconductor Energy Laboratory Co., Ltd. | 11353 |
1 |
| Toray Industries, Inc. | 6886 |
1 |
| The Board of Trustees of the University of Illinois | 2682 |
1 |
| DuPont Kabushiki Kaisha | 2 |
1 |
| Fujitsu Hitachi Plasma Display Limited | 55 |
1 |
| Taiyo Holdings Co., Ltd. | 271 |
1 |
| Other owners | 5 |