- 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: 114
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 | 20042 |
52 |
| Matsushita Electric Industrial Co., Ltd. | 1212 |
16 |
| Hitachi, Ltd. | 15572 |
8 |
| Sumitomo Chemical Company, Limited | 9047 |
5 |
| Central Glass Company, Limited | 1271 |
5 |
| Nippon Electric Glass Co., Ltd. | 2470 |
3 |
| Tateho Chemical Industries Co., Ltd. | 59 |
3 |
| Applied Materials, Inc. | 18892 |
2 |
| Asahi Glass Company, Limited | 2760 |
2 |
| Hitachi Plasma Display Limited | 93 |
2 |
| Nihon Yamamura Glass Co., Ltd. | 131 |
2 |
| Wuxi Vision Peak Technology Co., Ltd | 26 |
2 |
| LG Electronics Inc. | 73578 |
1 |
| Hitachi Chemical Company, Ltd. | 2339 |
1 |
| Semiconductor Energy Laboratory Co., Ltd. | 11481 |
1 |
| Toray Industries, Inc. | 6978 |
1 |
| The Board of Trustees of the University of Illinois | 2714 |
1 |
| DuPont Kabushiki Kaisha | 1 |
1 |
| Taiyo Holdings Co., Ltd. | 282 |
1 |
| Tokyo Ohka Kogyo Co., Ltd. | 1550 |
1 |
| Other owners | 4 |