- All sections
- H - Electricity
- H01F - Magnets; inductances; transformers; selection 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: 2727
10-year publication summary
|
132
|
210
|
271
|
376
|
293
|
310
|
273
|
254
|
253
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 23609 |
282 |
| Samsung Electro-mechanics Co., Ltd. | 5178 |
258 |
| TDK Corporation | 6517 |
150 |
| Hitachi Energy Ltd. | 2223 |
86 |
| Sumitomo Electric Industries, Ltd. | 14914 |
74 |
| Sumitomo Wiring Systems, Ltd. | 9980 |
68 |
| AutoNetworks Technologies, Ltd. | 6298 |
67 |
| Siemens AG | 24575 |
46 |
| Taiyo Yuden Co., Ltd. | 1887 |
46 |
| ABB Schweiz AG | 6609 |
40 |
| Mitsubishi Electric Corporation | 44678 |
39 |
| LG Innotek Co., Ltd. | 7203 |
35 |
| ABB Technology AG | 1272 |
34 |
| Delta Electronics (Shanghai) Co., Ltd. | 655 |
32 |
| Cyntec Co., Ltd. | 240 |
31 |
| Siemens Energy Global GmbH & Co. KG | 2822 |
28 |
| Delta Electronics, Inc. | 2502 |
23 |
| Sumida Corporation | 306 |
20 |
| FANUC Corporation | 6306 |
17 |
| Tamura Corporation | 352 |
17 |
| Other owners | 1334 |