- 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: 9365
10-year publication summary
|
780
|
918
|
1041
|
920
|
850
|
835
|
686
|
697
|
645
|
193
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 25506 |
1131 |
| TDK Corporation | 6803 |
502 |
| Samsung Electro-mechanics Co., Ltd. | 5833 |
450 |
| Taiyo Yuden Co., Ltd. | 2012 |
174 |
| Sumitomo Electric Industries, Ltd. | 16071 |
132 |
| Delta Electronics, Inc. | 2769 |
116 |
| Sumitomo Wiring Systems, Ltd. | 10767 |
114 |
| AutoNetworks Technologies, Ltd. | 6922 |
111 |
| Intel Corporation | 46638 |
109 |
| Delta Electronics (Shanghai) Co., Ltd. | 753 |
106 |
| Realtek Semiconductor Corp. | 3423 |
105 |
| LG Innotek Co., Ltd. | 8163 |
104 |
| Mitsubishi Electric Corporation | 47556 |
102 |
| Cyntec Co., Ltd. | 267 |
89 |
| Apple Inc. | 58049 |
85 |
| Qualcomm Incorporated | 90109 |
85 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 47211 |
84 |
| Panasonic Intellectual Property Management Co., Ltd. | 33462 |
83 |
| Samsung Electronics Co., Ltd. | 153573 |
80 |
| Hitachi Energy Ltd. | 2461 |
79 |
| Other owners | 5524 |