- All sections
- H - Electricity
- H01F - Magnetsinductancestransformersselection of materials for their magnetic properties
- H01F 3/08 - Cores, yokes or armatures made from powder
Patent holdings for IPC class H01F 3/08
Total number of patents in this class: 482
10-year publication summary
|
32
|
40
|
54
|
28
|
37
|
17
|
29
|
33
|
39
|
18
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| TDK Corporation | 6876 |
55 |
| Sumitomo Electric Industries, Ltd. | 16355 |
26 |
| Seiko Epson Corporation | 20259 |
25 |
| Murata Manufacturing Co., Ltd. | 25758 |
16 |
| Sumitomo Wiring Systems, Ltd. | 11029 |
14 |
| AutoNetworks Technologies, Ltd. | 7130 |
14 |
| Sumitomo Electric Sintered Alloy, Ltd. | 245 |
14 |
| Panasonic Intellectual Property Management Co., Ltd. | 34035 |
13 |
| Hitachi Metals, Ltd. | 1896 |
11 |
| Samsung Electro-mechanics Co., Ltd. | 6091 |
10 |
| Höganäs AB | 301 |
9 |
| JFE Steel Corporation | 7549 |
8 |
| Taiyo Yuden Co., Ltd. | 2032 |
8 |
| TOKIN Corporation | 216 |
8 |
| LG Innotek Co., Ltd. | 8486 |
7 |
| Sumida Corporation | 336 |
7 |
| Delta Electronics (Japan), Inc. | 50 |
7 |
| Toyota Motor Corporation | 35813 |
6 |
| Robert Bosch GmbH | 44176 |
6 |
| Cyntec Co., Ltd. | 277 |
6 |
| Other owners | 212 |