- All sections
- H - Electricity
- H01F - Magnets; inductances; transformers; selection of materials for their magnetic properties
- H01F 27/00 - MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES - Details of transformers or inductances, in general
Patent holdings for IPC class H01F 27/00
Total number of patents in this class: 838
10-year publication summary
|
60
|
72
|
75
|
92
|
86
|
56
|
65
|
70
|
77
|
23
|
| 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 |
256 |
| Mitsubishi Electric Corporation | 43934 |
38 |
| TDK Corporation | 6306 |
29 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
13 |
| Hitachi Energy Ltd. | 1921 |
12 |
| Intel Corporation | 45621 |
9 |
| Rohm Co., Ltd. | 5843 |
9 |
| Samsung Electro-mechanics Co., Ltd. | 4798 |
8 |
| LG Innotek Co., Ltd. | 6758 |
8 |
| International Business Machines Corporation | 60644 |
7 |
| Sumitomo Electric Industries, Ltd. | 14131 |
7 |
| Taiyo Yuden Co., Ltd. | 1809 |
7 |
| Samsung Electronics Co., Ltd. | 131630 |
6 |
| ABB Technology AG | 1301 |
6 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
6 |
| General Electric Company | 18133 |
5 |
| Siemens AG | 24990 |
5 |
| Ericsson | 20417 |
5 |
| Yazaki Corporation | 6282 |
5 |
| Sumitomo Wiring Systems, Ltd. | 9367 |
5 |
| Other owners | 392 |