- 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: 3022
10-year publication summary
|
210
|
271
|
376
|
293
|
311
|
282
|
258
|
257
|
218
|
74
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 25588 |
317 |
| Samsung Electro-mechanics Co., Ltd. | 5899 |
281 |
| TDK Corporation | 6818 |
176 |
| Hitachi Energy Ltd. | 2510 |
97 |
| Sumitomo Electric Industries, Ltd. | 16145 |
76 |
| Sumitomo Wiring Systems, Ltd. | 10818 |
69 |
| AutoNetworks Technologies, Ltd. | 6965 |
68 |
| Taiyo Yuden Co., Ltd. | 2019 |
51 |
| LG Innotek Co., Ltd. | 8232 |
47 |
| Siemens AG | 24177 |
41 |
| Cyntec Co., Ltd. | 275 |
41 |
| ABB Schweiz AG | 7491 |
41 |
| Mitsubishi Electric Corporation | 47683 |
39 |
| Delta Electronics (Shanghai) Co., Ltd. | 761 |
36 |
| ABB Technology AG | 1233 |
34 |
| Delta Electronics, Inc. | 2795 |
27 |
| Siemens Energy Global GmbH & Co. KG | 3281 |
27 |
| Sumida Corporation | 331 |
22 |
| Panasonic Intellectual Property Management Co., Ltd. | 33690 |
19 |
| FANUC Corporation | 7068 |
17 |
| Other owners | 1496 |