- All sections
- H - Electricity
- H01F - Magnetsinductancestransformersselection of materials for their magnetic properties
- H01F 27/28 - CoilsWindingsConductive connections
Patent holdings for IPC class H01F 27/28
Total number of patents in this class: 9245
10-year publication summary
|
780
|
918
|
1041
|
918
|
849
|
831
|
684
|
697
|
643
|
72
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 25214 |
1122 |
| TDK Corporation | 6771 |
493 |
| Samsung Electro-mechanics Co., Ltd. | 5748 |
442 |
| Taiyo Yuden Co., Ltd. | 2014 |
174 |
| Sumitomo Electric Industries, Ltd. | 15941 |
132 |
| Sumitomo Wiring Systems, Ltd. | 10686 |
114 |
| AutoNetworks Technologies, Ltd. | 6858 |
111 |
| Delta Electronics, Inc. | 2721 |
110 |
| Intel Corporation | 46576 |
109 |
| Realtek Semiconductor Corp. | 3387 |
105 |
| LG Innotek Co., Ltd. | 8023 |
104 |
| Delta Electronics (Shanghai) Co., Ltd. | 742 |
104 |
| Mitsubishi Electric Corporation | 47302 |
101 |
| Cyntec Co., Ltd. | 262 |
85 |
| Qualcomm Incorporated | 88555 |
84 |
| Panasonic Intellectual Property Management Co., Ltd. | 32904 |
83 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 46507 |
82 |
| Samsung Electronics Co., Ltd. | 151017 |
79 |
| Apple Inc. | 56891 |
79 |
| Hitachi Energy Ltd. | 2394 |
78 |
| Other owners | 5454 |