- All sections
- H - Electricity
- H01F - Magnets; inductances; transformers; selection of materials for their magnetic properties
- H01F 1/04 - 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
Patent holdings for IPC class H01F 1/04
Total number of patents in this class: 81
10-year publication summary
|
10
|
12
|
2
|
5
|
4
|
3
|
3
|
6
|
7
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 5649 |
5 |
| International Business Machines Corporation | 60644 |
4 |
| Shin-Etsu Chemical Co., Ltd. | 5132 |
4 |
| Regents of the University of Minnesota | 2620 |
4 |
| JFE Steel Corporation | 6067 |
3 |
| 3m Innovative Properties Company | 18406 |
2 |
| The Regents of the University of California | 18943 |
2 |
| Applied Materials, Inc. | 16587 |
2 |
| TDK Corporation | 6306 |
2 |
| Trustees of Dartmouth College | 1016 |
2 |
| Horizon Technology | 3 |
2 |
| Apple Inc. | 50209 |
1 |
| General Electric Company | 18133 |
1 |
| LG Electronics Inc. | 69257 |
1 |
| Sony Corporation | 32931 |
1 |
| Toyota Motor Corporation | 28582 |
1 |
| Centre National de La Recherche Scientifique | 9632 |
1 |
| Sumitomo Electric Industries, Ltd. | 14131 |
1 |
| Intel Corporation | 45621 |
1 |
| Hitachi Metals, Ltd. | 2175 |
1 |
| Other owners | 40 |