- All sections
- H - Electricity
- H01F - Magnets; inductances; transformers; selection of materials for their magnetic properties
- H01F 27/02 - Casings
Patent holdings for IPC class H01F 27/02
Total number of patents in this class: 2064
10-year publication summary
|
156
|
166
|
162
|
198
|
211
|
171
|
178
|
151
|
154
|
64
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 22355 |
136 |
| Hitachi Energy Ltd. | 1921 |
76 |
| Samsung Electro-mechanics Co., Ltd. | 4798 |
67 |
| Sumitomo Electric Industries, Ltd. | 14131 |
65 |
| TDK Corporation | 6306 |
65 |
| Sumitomo Wiring Systems, Ltd. | 9367 |
60 |
| AutoNetworks Technologies, Ltd. | 5809 |
58 |
| Cyntec Co., Ltd. | 232 |
50 |
| Sumida Corporation | 291 |
45 |
| Mitsubishi Electric Corporation | 43934 |
41 |
| Taiyo Yuden Co., Ltd. | 1809 |
39 |
| Denso Corporation | 23338 |
37 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
34 |
| Siemens AG | 24990 |
33 |
| Delta Electronics, Inc. | 2401 |
27 |
| ABB Schweiz AG | 6321 |
27 |
| Tamura Corporation | 350 |
22 |
| Toyota Motor Corporation | 28582 |
21 |
| Apple Inc. | 50209 |
20 |
| ABB Technology AG | 1301 |
20 |
| Other owners | 1121 |