- All sections
- H - Electricity
- H01F - Magnetsinductancestransformersselection of materials for their magnetic properties
- H01F 1/08 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
Patent holdings for IPC class H01F 1/08
Total number of patents in this class: 709
10-year publication summary
|
33
|
35
|
23
|
15
|
22
|
28
|
15
|
21
|
24
|
29
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Metals, Ltd. | 1896 |
66 |
| Nitto Denko Corporation | 8540 |
54 |
| TDK Corporation | 6876 |
49 |
| Intermetallics Co., Ltd. | 33 |
29 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12378 |
21 |
| Shin-Etsu Chemical Co., Ltd. | 6109 |
19 |
| Resonac Corporation | 3546 |
19 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6177 |
16 |
| Toda Kogyo Corporation | 329 |
15 |
| Xiamen Tungsten Co., Ltd. | 108 |
13 |
| Hitachi, Ltd. | 16113 |
12 |
| Toshiba Corporation | 12569 |
11 |
| Aichi Steel Corporation | 392 |
11 |
| Daido Steel Co., Ltd. | 284 |
11 |
| Regents of the University of Minnesota | 2791 |
11 |
| ULVAC, Inc. | 1343 |
10 |
| Proterial, Ltd. | 938 |
10 |
| Murata Manufacturing Co., Ltd. | 25758 |
9 |
| Showa Denko K.K. | 2069 |
9 |
| Sumitomo Electric Industries, Ltd. | 16355 |
8 |
| Other owners | 306 |