- 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: 9690
10-year publication summary
|
787
|
931
|
1052
|
929
|
856
|
845
|
699
|
699
|
657
|
512
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 25981 |
1159 |
| TDK Corporation | 7039 |
525 |
| Samsung Electro-mechanics Co., Ltd. | 6178 |
461 |
| Taiyo Yuden Co., Ltd. | 2061 |
179 |
| Sumitomo Electric Industries, Ltd. | 16404 |
138 |
| Sumitomo Wiring Systems, Ltd. | 11204 |
122 |
| Delta Electronics, Inc. | 2869 |
122 |
| AutoNetworks Technologies, Ltd. | 7268 |
117 |
| Delta Electronics (Shanghai) Co., Ltd. | 777 |
110 |
| Intel Corporation | 46313 |
108 |
| LG Innotek Co., Ltd. | 8585 |
106 |
| Realtek Semiconductor Corp. | 3525 |
105 |
| Mitsubishi Electric Corporation | 48409 |
103 |
| Cyntec Co., Ltd. | 280 |
94 |
| Qualcomm Incorporated | 93712 |
93 |
| Panasonic Intellectual Property Management Co., Ltd. | 34568 |
91 |
| Apple Inc. | 59354 |
86 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 49027 |
85 |
| Hitachi Energy Ltd. | 2662 |
85 |
| Texas Instruments Incorporated | 19622 |
83 |
| Other owners | 5718 |