- All sections
- H - Electricity
- H01F - Magnetsinductancestransformersselection of materials for their magnetic properties
- H01F 1/04 - 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
Patent holdings for IPC class H01F 1/04
Total number of patents in this class: 81
10-year publication summary
|
12
|
2
|
5
|
4
|
3
|
4
|
6
|
7
|
3
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 6139 |
5 |
| Regents of the University of Minnesota | 2684 |
5 |
| International Business Machines Corporation | 60806 |
4 |
| Shin-Etsu Chemical Co., Ltd. | 5586 |
3 |
| JFE Steel Corporation | 6730 |
3 |
| Apple Inc. | 54300 |
2 |
| 3m Innovative Properties Company | 17848 |
2 |
| The Regents of the University of California | 19784 |
2 |
| Applied Materials, Inc. | 18344 |
2 |
| TDK Corporation | 6661 |
2 |
| Trustees of Dartmouth College | 1078 |
2 |
| University of Utah Research Foundation | 1798 |
2 |
| Horizon Technology | 6 |
2 |
| General Electric Company | 13816 |
1 |
| LG Electronics Inc. | 72247 |
1 |
| Sony Corporation | 31171 |
1 |
| Toyota Motor Corporation | 31311 |
1 |
| Centre National de La Recherche Scientifique | 10284 |
1 |
| Sumitomo Electric Industries, Ltd. | 15292 |
1 |
| Intel Corporation | 46664 |
1 |
| Other owners | 38 |