- All sections
- H - Electricity
- H01F - Magnetsinductancestransformersselection of materials for their magnetic properties
- H01F 27/32 - Insulating of coils, windings, or parts thereof
Patent holdings for IPC class H01F 27/32
Total number of patents in this class: 2935
10-year publication summary
|
131
|
210
|
264
|
363
|
290
|
305
|
274
|
254
|
254
|
204
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 24907 |
309 |
| Samsung Electro-mechanics Co., Ltd. | 5674 |
274 |
| TDK Corporation | 6879 |
166 |
| Hitachi Energy Ltd. | 2311 |
88 |
| Sumitomo Electric Industries, Ltd. | 15693 |
75 |
| Sumitomo Wiring Systems, Ltd. | 10518 |
68 |
| AutoNetworks Technologies, Ltd. | 6706 |
67 |
| Taiyo Yuden Co., Ltd. | 1977 |
50 |
| Siemens AG | 24363 |
44 |
| LG Innotek Co., Ltd. | 7873 |
44 |
| ABB Schweiz AG | 7127 |
41 |
| Mitsubishi Electric Corporation | 46757 |
39 |
| Cyntec Co., Ltd. | 259 |
36 |
| ABB Technology AG | 1249 |
34 |
| Delta Electronics (Shanghai) Co., Ltd. | 729 |
34 |
| Delta Electronics, Inc. | 2661 |
25 |
| Siemens Energy Global GmbH & Co. KG | 3048 |
25 |
| Sumida Corporation | 332 |
22 |
| Panasonic Intellectual Property Management Co., Ltd. | 32219 |
19 |
| FANUC Corporation | 6842 |
17 |
| Other owners | 1458 |