- 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: 1075
10-year publication summary
|
58
|
68
|
50
|
45
|
46
|
39
|
18
|
7
|
7
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 27102 |
84 |
| Samsung Display Co., Ltd. | 30585 |
73 |
| Boe Technology Group Co., Ltd. | 35384 |
34 |
| LG Display Co., Ltd. | 11907 |
31 |
| The University of Tokyo | 3903 |
26 |
| Samsung Electronics Co., Ltd. | 131630 |
25 |
| Konica Minolta Holdings, Inc. | 1086 |
25 |
| Sumitomo Chemical Company, Limited | 8808 |
24 |
| Sony Corporation | 32931 |
19 |
| Nippon Kayaku Kabushiki Kaisha | 1400 |
16 |
| Sharp Kabushiki Kaisha | 18957 |
15 |
| Eastman Kodak Company | 3444 |
13 |
| Idemitsu Kosan Co., Ltd. | 3995 |
12 |
| Toray Industries, Inc. | 6652 |
12 |
| Daicel Corporation | 2128 |
12 |
| NEC Corporation | 32703 |
11 |
| Merck Patent GmbH | 5909 |
11 |
| Xerox Corporation | 7503 |
9 |
| Semiconductor Energy Laboratory Co., Ltd. | 10902 |
9 |
| Dai Nippon Printing Co., Ltd. | 3891 |
9 |
| Other owners | 605 |