- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 31/04 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof adapted as photovoltaic [PV] conversion devices
Patent holdings for IPC class H01L 31/04
Total number of patents in this class: 3207
10-year publication summary
|
74
|
63
|
48
|
41
|
33
|
31
|
32
|
28
|
24
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sharp Kabushiki Kaisha | 18523 |
226 |
| Sanyo Electric Co., Ltd. | 3407 |
200 |
| FUJIFILM Corporation | 30514 |
117 |
| Mitsubishi Electric Corporation | 48018 |
105 |
| Kyocera Corporation | 14359 |
97 |
| Hitachi Chemical Company, Ltd. | 2241 |
78 |
| ULVAC, Inc. | 1345 |
67 |
| Fujikura Ltd. | 3087 |
45 |
| Asahi Glass Company, Limited | 2622 |
42 |
| SunPower Corporation | 361 |
42 |
| Kaneka Corporation | 4703 |
40 |
| Sony Corporation | 30181 |
37 |
| Panasonic Corporation | 19019 |
36 |
| Mitsubishi Heavy Industries, Ltd. | 9128 |
31 |
| Hitachi, Ltd. | 16094 |
28 |
| Tokyo Electron Limited | 13807 |
28 |
| Showa Shell Sekiyu K.K. | 83 |
24 |
| LG Chem, Ltd. | 17921 |
23 |
| National Institute of Advanced Industrial Science and Technology | 3794 |
22 |
| Hitachi Zosen Corporation | 602 |
17 |
| Other owners | 1902 |