- 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: 3121
10-year publication summary
|
210
|
271
|
376
|
293
|
311
|
282
|
258
|
257
|
218
|
170
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 25998 |
328 |
| Samsung Electro-mechanics Co., Ltd. | 6187 |
287 |
| TDK Corporation | 7043 |
189 |
| Hitachi Energy Ltd. | 2669 |
101 |
| Sumitomo Electric Industries, Ltd. | 16437 |
79 |
| Sumitomo Wiring Systems, Ltd. | 11236 |
73 |
| AutoNetworks Technologies, Ltd. | 7295 |
71 |
| Taiyo Yuden Co., Ltd. | 2062 |
51 |
| LG Innotek Co., Ltd. | 8621 |
49 |
| Cyntec Co., Ltd. | 280 |
42 |
| ABB Schweiz AG | 7761 |
42 |
| Siemens AG | 23934 |
41 |
| Mitsubishi Electric Corporation | 48460 |
39 |
| Delta Electronics (Shanghai) Co., Ltd. | 777 |
39 |
| ABB Technology AG | 1216 |
33 |
| Delta Electronics, Inc. | 2872 |
29 |
| Siemens Energy Global GmbH & Co. KG | 3517 |
27 |
| Panasonic Intellectual Property Management Co., Ltd. | 34623 |
23 |
| Sumida Corporation | 338 |
22 |
| Tamura Corporation | 367 |
18 |
| Other owners | 1538 |