- 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: 8974
10-year publication summary
|
657
|
780
|
918
|
1041
|
917
|
849
|
818
|
670
|
694
|
469
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 24650 |
1086 |
| TDK Corporation | 6791 |
470 |
| Samsung Electro-mechanics Co., Ltd. | 5634 |
441 |
| Taiyo Yuden Co., Ltd. | 1939 |
171 |
| Sumitomo Electric Industries, Ltd. | 15557 |
126 |
| Intel Corporation | 47062 |
109 |
| Sumitomo Wiring Systems, Ltd. | 10405 |
108 |
| Delta Electronics, Inc. | 2627 |
107 |
| AutoNetworks Technologies, Ltd. | 6623 |
106 |
| Delta Electronics (Shanghai) Co., Ltd. | 725 |
104 |
| Realtek Semiconductor Corp. | 3297 |
102 |
| Mitsubishi Electric Corporation | 46295 |
100 |
| LG Innotek Co., Ltd. | 7698 |
97 |
| Qualcomm Incorporated | 86023 |
79 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 43064 |
79 |
| Cyntec Co., Ltd. | 257 |
79 |
| Apple Inc. | 55287 |
77 |
| Samsung Electronics Co., Ltd. | 147131 |
76 |
| Panasonic Intellectual Property Management Co., Ltd. | 31696 |
75 |
| Hitachi Energy Ltd. | 2240 |
72 |
| Other owners | 5310 |