- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 1/308 - Semiconductor cathodes, e.g. cathodes with PN junction layers
Patent holdings for IPC class H01J 1/308
Total number of patents in this class: 36
10-year publication summary
|
3
|
2
|
1
|
2
|
1
|
2
|
0
|
1
|
4
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hon Hai Precision Industry Co., Ltd. | 4019 |
3 |
| Tsinghua University | 6248 |
3 |
| National Institute of Advanced Industrial Science and Technology | 3790 |
3 |
| Toshiba Corporation | 12726 |
2 |
| ASML Netherlands B.V. | 8019 |
2 |
| Modern Electron, Inc. | 15 |
2 |
| Samsung Electronics Co., Ltd. | 159029 |
1 |
| LG Electronics Inc. | 76087 |
1 |
| Infineon Technologies AG | 8419 |
1 |
| Hamamatsu Photonics K.K. | 4713 |
1 |
| Evince Technology Limited | 7 |
1 |
| Fuzhou University | 340 |
1 |
| HRL Laboratories, LLC | 1645 |
1 |
| KLA-Tencor Corporation | 2517 |
1 |
| Kumoh National Institute of Technology Industry-Academic Cooperation Foundation | 127 |
1 |
| Nuctech Company Limited | 1478 |
1 |
| Sanken Electric Co., Ltd. | 454 |
1 |
| National Technology & Engineering Solutions of Sandia, LLC | 1953 |
1 |
| Toshiba Energy Systems & Solutions Corp. | 1139 |
1 |
| Alcatel Lucent | 4285 |
1 |
| Other owners | 7 |