- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 51/40 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof
Patent holdings for IPC class H01L 51/40
Total number of patents in this class: 885
10-year publication summary
|
50
|
45
|
46
|
39
|
18
|
7
|
7
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 30512 |
84 |
| Samsung Display Co., Ltd. | 38570 |
63 |
| Boe Technology Group Co., Ltd. | 44004 |
34 |
| The University of Tokyo | 4352 |
26 |
| LG Display Co., Ltd. | 14965 |
22 |
| Sumitomo Chemical Company, Limited | 8996 |
22 |
| Samsung Electronics Co., Ltd. | 157557 |
21 |
| Sony Corporation | 30208 |
18 |
| Konica Minolta Holdings, Inc. | 792 |
15 |
| Nippon Kayaku Kabushiki Kaisha | 1454 |
15 |
| Sharp Kabushiki Kaisha | 18530 |
14 |
| Idemitsu Kosan Co., Ltd. | 4234 |
12 |
| Toray Industries, Inc. | 7096 |
12 |
| Daicel Corporation | 2508 |
12 |
| NEC Corporation | 36934 |
10 |
| Osaka University | 3269 |
9 |
| Dai Nippon Printing Co., Ltd. | 4237 |
8 |
| Wuhan China Star Optoelectronics Technology Co., Ltd. | 4315 |
8 |
| Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | 3754 |
8 |
| Magnolia Blue Corporation | 1154 |
8 |
| Other owners | 464 |