- All sections
- H - Electricity
- H01F - Magnetsinductancestransformersselection of materials for their magnetic properties
- H01F 1/03 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity
Patent holdings for IPC class H01F 1/03
Total number of patents in this class: 255
10-year publication summary
|
27
|
43
|
38
|
30
|
28
|
13
|
13
|
15
|
16
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| TDK Corporation | 6745 |
17 |
| Murata Manufacturing Co., Ltd. | 25020 |
11 |
| Toyota Motor Corporation | 33519 |
10 |
| LG Innotek Co., Ltd. | 7932 |
8 |
| HiDeep Inc. | 331 |
6 |
| Samsung Electronics Co., Ltd. | 149198 |
5 |
| FUJIFILM Corporation | 29839 |
5 |
| Dowa Electronics Materials Co., Ltd. | 639 |
5 |
| Taiyo Yuden Co., Ltd. | 1989 |
5 |
| ETO Magnetic GmbH | 280 |
4 |
| Ferric Inc. | 55 |
4 |
| Viavi Solutions Inc. | 1477 |
4 |
| Proterial, Ltd. | 883 |
4 |
| Sony Corporation | 30769 |
3 |
| GM Global Technology Operations LLC | 15401 |
3 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 46182 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 32504 |
3 |
| SKC Co., Ltd. | 322 |
3 |
| Noveon Magnetics Inc. | 37 |
3 |
| Apple Inc. | 56466 |
2 |
| Other owners | 147 |