- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 41/257 - Treating devices or parts thereof to modify a piezo-electric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning by polarising
Patent holdings for IPC class H01L 41/257
Total number of patents in this class: 231
10-year publication summary
|
13
|
17
|
22
|
24
|
28
|
24
|
17
|
11
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 29367 |
31 |
| Murata Manufacturing Co., Ltd. | 24526 |
26 |
| Canon Inc. | 39888 |
12 |
| Taiyo Yuden Co., Ltd. | 1936 |
9 |
| Ricoh Company, Ltd. | 13247 |
8 |
| TDK Corporation | 6738 |
6 |
| Daikin Industries, Ltd. | 9995 |
6 |
| Canon Kabushiki Kaisha | 7056 |
6 |
| Kyocera Corporation | 13799 |
5 |
| Seiko Epson Corporation | 19352 |
4 |
| Toshiba Medical Systems Corporation | 2123 |
3 |
| Olympus Corporation | 13182 |
3 |
| Epcos AG | 701 |
3 |
| Continental Automotive GmbH | 4964 |
3 |
| NGK Insulators, Ltd. | 4955 |
3 |
| a School Corporation Kansai University | 92 |
3 |
| Kureha Corporation | 1027 |
3 |
| Physik Instrumente (PI) GmbH & Co. KG | 231 |
3 |
| GE Precision Healthcare LLC | 5455 |
3 |
| Konica Minolta, Inc. | 8729 |
2 |
| Other owners | 89 |