- All sections
- H - Electricity
- H01F - Magnetsinductancestransformersselection of materials for their magnetic properties
- H01F 3/14 - ConstrictionsGaps, e.g. air-gaps
Patent holdings for IPC class H01F 3/14
Total number of patents in this class: 582
10-year publication summary
|
35
|
67
|
62
|
39
|
50
|
47
|
32
|
30
|
46
|
23
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FANUC Corporation | 7201 |
31 |
| TDK Corporation | 6855 |
18 |
| Delta Electronics, Inc. | 2828 |
18 |
| Sumitomo Electric Industries, Ltd. | 16305 |
17 |
| Sumitomo Wiring Systems, Ltd. | 10987 |
17 |
| AutoNetworks Technologies, Ltd. | 7089 |
17 |
| Delta Electronics (Shanghai) Co., Ltd. | 767 |
15 |
| Murata Manufacturing Co., Ltd. | 25722 |
13 |
| TDK Electronics AG | 1010 |
13 |
| LG Innotek Co., Ltd. | 8453 |
11 |
| ABB Schweiz AG | 7590 |
9 |
| Eaton Intelligent Power Limited | 6236 |
9 |
| Robert Bosch GmbH | 44128 |
8 |
| Ford Global Technologies, LLC | 21478 |
8 |
| Wurth Elektronik eiSos GmbH & Co. KG | 121 |
7 |
| Huawei Technologies Co., Ltd. | 123282 |
6 |
| Delta Electronics (Thailand) Public Co., Ltd. | 103 |
6 |
| Power Integrations, Inc. | 566 |
6 |
| Samsung Electro-mechanics Co., Ltd. | 6073 |
5 |
| Analog Devices, Inc. | 3321 |
5 |
| Other owners | 343 |