- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 51/30 - Selection of materials
Patent holdings for IPC class H01L 51/30
Total number of patents in this class: 1535
10-year publication summary
101
|
88
|
75
|
50
|
52
|
49
|
26
|
19
|
10
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
FUJIFILM Corporation | 27102 |
141 |
Sumitomo Chemical Company, Limited | 8808 |
133 |
Merck Patent GmbH | 5909 |
45 |
Osaka University | 3143 |
44 |
Idemitsu Kosan Co., Ltd. | 3995 |
37 |
The University of Tokyo | 3903 |
34 |
Nippon Kayaku Kabushiki Kaisha | 1400 |
33 |
Toray Industries, Inc. | 6652 |
29 |
Samsung Electronics Co., Ltd. | 131630 |
24 |
BASF SE | 19740 |
24 |
Konica Minolta Holdings, Inc. | 1086 |
21 |
Sony Corporation | 32931 |
20 |
Daicel Corporation | 2128 |
17 |
DIC Corporation | 3597 |
17 |
Sharp Kabushiki Kaisha | 18957 |
17 |
NEC Corporation | 32703 |
16 |
Eastman Kodak Company | 3444 |
15 |
Hiroshima University | 527 |
15 |
Ricoh Company, Ltd. | 13266 |
14 |
JNC Corporation | 1527 |
14 |
Other owners | 825 |