- All sections
- H - Electricity
- H01F - Magnets; inductances; transformers; selection of materials for their magnetic properties
- H01F 3/10 - Composite arrangements of magnetic circuits
Patent holdings for IPC class H01F 3/10
Total number of patents in this class: 449
10-year publication summary
|
31
|
60
|
60
|
65
|
27
|
23
|
26
|
21
|
25
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| TDK Corporation | 6517 |
30 |
| Murata Manufacturing Co., Ltd. | 23609 |
18 |
| Samsung Electro-mechanics Co., Ltd. | 5178 |
14 |
| Cyntec Co., Ltd. | 240 |
14 |
| Robert Bosch GmbH | 41695 |
10 |
| Delta Electronics, Inc. | 2502 |
8 |
| Sumitomo Electric Industries, Ltd. | 14914 |
7 |
| Delta Electronics (Shanghai) Co., Ltd. | 655 |
7 |
| Cooper Technologies Company | 648 |
6 |
| Delta Electronics (Thailand) Public Co., Ltd. | 84 |
6 |
| Vacuumschmelze GmbH & Co. KG | 260 |
6 |
| Mitsubishi Electric Corporation | 44678 |
5 |
| Sumitomo Wiring Systems, Ltd. | 9980 |
5 |
| AutoNetworks Technologies, Ltd. | 6298 |
5 |
| Valeo Systemes de Controle Moteur | 611 |
5 |
| Eaton Intelligent Power Limited | 6291 |
5 |
| Apple Inc. | 52547 |
4 |
| Siemens AG | 24575 |
4 |
| International Business Machines Corporation | 60067 |
4 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10667 |
4 |
| Other owners | 282 |