- All sections
- H - Electricity
- H01F - Magnetsinductancestransformersselection of materials for their magnetic properties
- H01F 41/04 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets for manufacturing coils
Patent holdings for IPC class H01F 41/04
Total number of patents in this class: 2597
10-year publication summary
|
220
|
305
|
325
|
287
|
262
|
200
|
169
|
168
|
153
|
12
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 25214 |
514 |
| Samsung Electro-mechanics Co., Ltd. | 5748 |
242 |
| TDK Corporation | 6771 |
117 |
| Taiyo Yuden Co., Ltd. | 2014 |
68 |
| Intel Corporation | 46576 |
61 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 46507 |
61 |
| Qualcomm Incorporated | 88555 |
53 |
| Panasonic Intellectual Property Management Co., Ltd. | 32904 |
37 |
| International Business Machines Corporation | 61904 |
35 |
| Texas Instruments Incorporated | 19555 |
35 |
| Nitto Denko Corporation | 8399 |
23 |
| Massachusetts Institute of Technology | 10181 |
20 |
| Tokamak Energy Ltd | 197 |
20 |
| Cyntec Co., Ltd. | 262 |
19 |
| Moda-innochips Co., Ltd. | 101 |
18 |
| Sumitomo Electric Industries, Ltd. | 15941 |
17 |
| Delta Electronics (Shanghai) Co., Ltd. | 742 |
17 |
| Siemens AG | 24294 |
16 |
| Infineon Technologies Austria AG | 2246 |
16 |
| Shinko Electric Industries Co., Ltd. | 1214 |
16 |
| Other owners | 1192 |