- 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: 664
10-year publication summary
|
79
|
72
|
33
|
35
|
21
|
15
|
22
|
26
|
15
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Metals, Ltd. | 2175 |
75 |
| Nitto Denko Corporation | 7879 |
54 |
| TDK Corporation | 6306 |
53 |
| Intermetallics Co., Ltd. | 34 |
29 |
| Shin-Etsu Chemical Co., Ltd. | 5132 |
21 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13301 |
21 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6275 |
16 |
| Toda Kogyo Corporation | 323 |
13 |
| Xiamen Tungsten Co., Ltd. | 99 |
13 |
| Toshiba Corporation | 12017 |
11 |
| Hitachi, Ltd. | 16452 |
11 |
| Aichi Steel Corporation | 333 |
11 |
| Proterial, Ltd. | 638 |
11 |
| Daido Steel Co., Ltd. | 237 |
10 |
| Regents of the University of Minnesota | 2620 |
10 |
| ULVAC, Inc. | 1448 |
10 |
| Toyota Motor Corporation | 28582 |
9 |
| Showa Denko K.K. | 2539 |
9 |
| Sumitomo Electric Industries, Ltd. | 14131 |
8 |
| Nissan Motor Co., Ltd. | 12249 |
7 |
| Other owners | 262 |