- All sections
- H - Electricity
- H01F - Magnetsinductancestransformersselection of materials for their magnetic properties
- H01F 1/28 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder dispersed or suspended in a bonding agent
Patent holdings for IPC class H01F 1/28
Total number of patents in this class: 177
10-year publication summary
|
17
|
13
|
13
|
19
|
11
|
22
|
14
|
8
|
11
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 30543 |
11 |
| Nitto Denko Corporation | 8543 |
11 |
| TDK Corporation | 6884 |
8 |
| Viavi Solutions Inc. | 1528 |
7 |
| 3m Innovative Properties Company | 17484 |
6 |
| Aichi Steel Corporation | 392 |
5 |
| Taiyo Yuden Co., Ltd. | 2033 |
5 |
| Tundra Composites, LLC | 69 |
5 |
| Siemens AG | 24011 |
4 |
| Murata Manufacturing Co., Ltd. | 25776 |
4 |
| Panasonic Intellectual Property Management Co., Ltd. | 34080 |
4 |
| TOKIN Corporation | 216 |
4 |
| Resonac Corporation | 3561 |
4 |
| Toshiba Corporation | 12577 |
3 |
| Seiko Epson Corporation | 20288 |
3 |
| Condalign AS | 26 |
3 |
| IFP Energies Nouvelles | 3098 |
3 |
| Somar Corporation | 136 |
3 |
| Tohoku University | 2989 |
3 |
| Tokyo Ohka Kogyo Co., Ltd. | 1565 |
3 |
| Other owners | 78 |