- 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: 689
10-year publication summary
|
24
|
32
|
31
|
25
|
24
|
28
|
22
|
19
|
15
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Corporation | 18951 |
70 |
| Hon Hai Precision Industry Co., Ltd. | 4023 |
32 |
| Hitachi, Ltd. | 16146 |
32 |
| Tsinghua University | 6222 |
32 |
| NCX Corporation | 39 |
18 |
| Massachusetts Institute of Technology | 10259 |
17 |
| E. I. du Pont de Nemours and Company | 3521 |
16 |
| Hitachi Plasma Display Limited | 57 |
14 |
| Toray Industries, Inc. | 7116 |
12 |
| National Institute for Materials Science | 1085 |
11 |
| Hitachi High-Tech Corporation | 5884 |
8 |
| Sharp Corporation | 10569 |
7 |
| JSR Corporation | 2560 |
7 |
| LightLab Sweden AB | 24 |
7 |
| Samsung Electronics Co., Ltd. | 158156 |
6 |
| Hitachi High-Technologies Corporation | 1987 |
6 |
| ASML Netherlands B.V. | 7954 |
6 |
| California Institute of Technology | 4039 |
6 |
| National Institute of Advanced Industrial Science and Technology | 3793 |
6 |
| Korea University Research and Business Foundation | 3277 |
6 |
| Other owners | 370 |