- 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: 9231
10-year publication summary
|
780
|
918
|
1041
|
918
|
849
|
831
|
683
|
697
|
643
|
55
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 25190 |
1120 |
| TDK Corporation | 6762 |
494 |
| Samsung Electro-mechanics Co., Ltd. | 5737 |
442 |
| Taiyo Yuden Co., Ltd. | 2009 |
174 |
| Sumitomo Electric Industries, Ltd. | 15898 |
132 |
| Sumitomo Wiring Systems, Ltd. | 10651 |
114 |
| Delta Electronics, Inc. | 2711 |
111 |
| AutoNetworks Technologies, Ltd. | 6826 |
111 |
| Intel Corporation | 46546 |
109 |
| LG Innotek Co., Ltd. | 7997 |
104 |
| Realtek Semiconductor Corp. | 3379 |
104 |
| Delta Electronics (Shanghai) Co., Ltd. | 739 |
104 |
| Mitsubishi Electric Corporation | 47240 |
101 |
| Cyntec Co., Ltd. | 262 |
85 |
| Qualcomm Incorporated | 88287 |
83 |
| Panasonic Intellectual Property Management Co., Ltd. | 32795 |
83 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 46420 |
82 |
| Samsung Electronics Co., Ltd. | 150501 |
79 |
| Apple Inc. | 56767 |
78 |
| Texas Instruments Incorporated | 19524 |
76 |
| Other owners | 5445 |