- All sections
- H - Electricity
- H01F - Magnetsinductancestransformersselection of materials for their magnetic properties
- H01F 27/245 - Magnetic cores made from sheets, e.g. grain-oriented
Patent holdings for IPC class H01F 27/245
Total number of patents in this class: 707
10-year publication summary
|
74
|
76
|
73
|
80
|
62
|
67
|
59
|
53
|
50
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 6595 |
126 |
| JFE Steel Corporation | 7179 |
66 |
| Murata Manufacturing Co., Ltd. | 25252 |
35 |
| Samsung Electro-mechanics Co., Ltd. | 5756 |
19 |
| Siemens AG | 24278 |
17 |
| TDK Corporation | 6779 |
14 |
| FANUC Corporation | 6967 |
13 |
| Taiyo Yuden Co., Ltd. | 2013 |
12 |
| Hitachi, Ltd. | 15800 |
10 |
| Hitachi Energy Ltd. | 2405 |
10 |
| Safran Electrical & Power | 728 |
9 |
| Mitsubishi Electric Corporation | 47352 |
8 |
| ABB Technology AG | 1236 |
8 |
| Hitachi Metals, Ltd. | 1937 |
7 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1504 |
7 |
| Siemens Energy Global GmbH & Co. KG | 3166 |
7 |
| Samsung Electronics Co., Ltd. | 151485 |
6 |
| Rompower Technology Holdings, LLC | 49 |
6 |
| Proterial, Ltd. | 904 |
6 |
| Nitto Denko Corporation | 8410 |
5 |
| Other owners | 316 |