- All sections
- H - Electricity
- H01F - Magnets; inductances; transformers; selection of materials for their magnetic properties
- H01F 1/08 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection 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: 670
10-year publication summary
|
72
|
33
|
35
|
23
|
15
|
22
|
27
|
15
|
19
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Metals, Ltd. | 2021 |
74 |
| Nitto Denko Corporation | 8089 |
54 |
| TDK Corporation | 6539 |
50 |
| Intermetallics Co., Ltd. | 33 |
29 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13086 |
21 |
| Shin-Etsu Chemical Co., Ltd. | 5446 |
20 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6235 |
16 |
| Toda Kogyo Corporation | 341 |
13 |
| Xiamen Tungsten Co., Ltd. | 103 |
13 |
| Hitachi, Ltd. | 15226 |
12 |
| Toshiba Corporation | 12051 |
11 |
| Regents of the University of Minnesota | 2680 |
11 |
| Aichi Steel Corporation | 372 |
10 |
| Daido Steel Co., Ltd. | 258 |
10 |
| ULVAC, Inc. | 1403 |
10 |
| Proterial, Ltd. | 765 |
10 |
| Showa Denko K.K. | 2337 |
9 |
| Sumitomo Electric Industries, Ltd. | 14972 |
8 |
| Toyota Motor Corporation | 30455 |
7 |
| Nissan Motor Co., Ltd. | 12352 |
7 |
| Other owners | 275 |