- All sections
- H - Electricity
- H01F - Magnets; inductances; transformers; selection of materials for their magnetic properties
- H01F 27/24 - Magnetic cores
Patent holdings for IPC class H01F 27/24
Total number of patents in this class: 3420
10-year publication summary
|
228
|
245
|
330
|
397
|
350
|
350
|
305
|
251
|
250
|
17
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 23702 |
248 |
| Sumitomo Electric Industries, Ltd. | 14972 |
169 |
| Sumitomo Wiring Systems, Ltd. | 10016 |
149 |
| AutoNetworks Technologies, Ltd. | 6329 |
145 |
| TDK Corporation | 6539 |
130 |
| Samsung Electro-mechanics Co., Ltd. | 5206 |
99 |
| Delta Electronics (Shanghai) Co., Ltd. | 661 |
82 |
| Taiyo Yuden Co., Ltd. | 1887 |
76 |
| Delta Electronics, Inc. | 2509 |
67 |
| Cyntec Co., Ltd. | 241 |
57 |
| Mitsubishi Electric Corporation | 44851 |
53 |
| Sumida Corporation | 306 |
47 |
| LG Innotek Co., Ltd. | 7242 |
41 |
| Hitachi Energy Ltd. | 2232 |
38 |
| Tamura Corporation | 353 |
36 |
| Hitachi Metals, Ltd. | 2021 |
35 |
| Intel Corporation | 46126 |
33 |
| Panasonic Intellectual Property Management Co., Ltd. | 29733 |
32 |
| FANUC Corporation | 6341 |
30 |
| Nippon Steel Corporation | 6012 |
28 |
| Other owners | 1825 |