- 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: 257
10-year publication summary
|
43
|
38
|
30
|
28
|
13
|
13
|
15
|
16
|
12
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| TDK Corporation | 6762 |
17 |
| Murata Manufacturing Co., Ltd. | 25190 |
11 |
| Toyota Motor Corporation | 33827 |
10 |
| LG Innotek Co., Ltd. | 7997 |
8 |
| HiDeep Inc. | 336 |
6 |
| Samsung Electronics Co., Ltd. | 150501 |
5 |
| FUJIFILM Corporation | 29992 |
5 |
| Dowa Electronics Materials Co., Ltd. | 639 |
5 |
| Taiyo Yuden Co., Ltd. | 2009 |
5 |
| ETO Magnetic GmbH | 280 |
4 |
| Ferric Inc. | 55 |
4 |
| Viavi Solutions Inc. | 1488 |
4 |
| Proterial, Ltd. | 896 |
4 |
| Sony Corporation | 30680 |
3 |
| GM Global Technology Operations LLC | 15522 |
3 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 46420 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 32795 |
3 |
| SKC Co., Ltd. | 323 |
3 |
| Noveon Magnetics Inc. | 37 |
3 |
| Apple Inc. | 56767 |
2 |
| Other owners | 149 |