- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 9/02 - Manufacture of electrodes or electrode systems
Patent holdings for IPC class H01J 9/02
Total number of patents in this class: 765
10-year publication summary
|
35
|
24
|
32
|
31
|
25
|
24
|
28
|
22
|
17
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Corporation | 20198 |
73 |
| Hon Hai Precision Industry Co., Ltd. | 4032 |
34 |
| Tsinghua University | 5811 |
33 |
| Hitachi, Ltd. | 15364 |
32 |
| Hitachi Plasma Display Limited | 93 |
19 |
| NCX Corporation | 37 |
18 |
| E. I. du Pont de Nemours and Company | 4146 |
17 |
| Massachusetts Institute of Technology | 9967 |
17 |
| Toray Industries, Inc. | 6859 |
14 |
| National Institute for Materials Science | 1105 |
12 |
| Fujitsu Hitachi Plasma Display Limited | 55 |
10 |
| LightLab Sweden AB | 39 |
10 |
| ALIS Corporation | 35 |
9 |
| ULVAC, Inc. | 1388 |
8 |
| Sharp Corporation | 10277 |
7 |
| Asahi Glass Company, Limited | 2828 |
7 |
| National Institute of Advanced Industrial Science and Technology | 3775 |
7 |
| JSR Corporation | 2507 |
7 |
| Samsung Electronics Co., Ltd. | 143021 |
6 |
| Matsushita Electric Industrial Co., Ltd. | 2020 |
6 |
| Other owners | 419 |