- 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: 2986
10-year publication summary
|
210
|
264
|
363
|
290
|
305
|
278
|
255
|
256
|
217
|
38
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 25261 |
311 |
| Samsung Electro-mechanics Co., Ltd. | 5764 |
275 |
| TDK Corporation | 6778 |
172 |
| Hitachi Energy Ltd. | 2409 |
96 |
| Sumitomo Electric Industries, Ltd. | 15978 |
75 |
| Sumitomo Wiring Systems, Ltd. | 10708 |
68 |
| AutoNetworks Technologies, Ltd. | 6874 |
67 |
| Taiyo Yuden Co., Ltd. | 2013 |
51 |
| LG Innotek Co., Ltd. | 8062 |
47 |
| Siemens AG | 24291 |
41 |
| ABB Schweiz AG | 7323 |
41 |
| Mitsubishi Electric Corporation | 47380 |
39 |
| Cyntec Co., Ltd. | 262 |
37 |
| Delta Electronics (Shanghai) Co., Ltd. | 742 |
35 |
| ABB Technology AG | 1236 |
34 |
| Siemens Energy Global GmbH & Co. KG | 3173 |
27 |
| Delta Electronics, Inc. | 2736 |
26 |
| Sumida Corporation | 336 |
22 |
| Panasonic Intellectual Property Management Co., Ltd. | 33033 |
19 |
| FANUC Corporation | 6975 |
17 |
| Other owners | 1486 |