- All sections
- H - Electricity
- H01F - Magnets; inductances; transformers; selection of materials for their magnetic properties
- H01F 3/02 - Cores, yokes or armatures made from sheets
Patent holdings for IPC class H01F 3/02
Total number of patents in this class: 211
10-year publication summary
|
8
|
12
|
19
|
28
|
26
|
16
|
25
|
22
|
17
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24990 |
14 |
| JFE Steel Corporation | 6067 |
11 |
| Nippon Steel Corporation | 5649 |
11 |
| Hitachi Energy Ltd. | 1921 |
8 |
| Atlas Copco Airpower, naamloze vennootschap | 915 |
7 |
| Voestalpine Stahl GmbH | 311 |
5 |
| Feintool International Holding AG | 113 |
4 |
| Hangnam Co., Ltd. | 6 |
4 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
4 |
| General Electric Company | 18133 |
3 |
| International Business Machines Corporation | 60644 |
3 |
| Hitachi, Ltd. | 16452 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
3 |
| Aperam | 104 |
3 |
| BMC Co., Ltd. | 39 |
3 |
| Mitsui High-tec, Inc. | 265 |
3 |
| Toshiba Materials Co., Ltd. | 600 |
3 |
| Vacuumschmelze GmbH & Co. KG | 253 |
3 |
| Beijing Naura Microelectronics Equipment Co., Ltd. | 430 |
3 |
| 3m Innovative Properties Company | 18406 |
2 |
| Other owners | 111 |