- All sections
- H - Electricity
- H01F - Magnetsinductancestransformersselection of materials for their magnetic properties
- H01F 1/09 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials mixtures of metallic and non-metallic particlesMagnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metallic particles having oxide skin
Patent holdings for IPC class H01F 1/09
Total number of patents in this class: 43
10-year publication summary
|
3
|
4
|
3
|
5
|
5
|
1
|
3
|
0
|
1
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Corporation | 30440 |
3 |
| National Institute of Advanced Industrial Science and Technology | 3794 |
3 |
| Aichi Steel Corporation | 393 |
3 |
| Siemens AG | 24236 |
2 |
| The Boeing Company | 20094 |
2 |
| Nissan Motor Co., Ltd. | 12757 |
2 |
| TDK Corporation | 6803 |
2 |
| Tokyo Institute of Technology | 1330 |
2 |
| The Regents of the University of California | 20506 |
1 |
| International Business Machines Corporation | 62182 |
1 |
| Hewlett-Packard Development Company, L.P. | 25370 |
1 |
| Murata Manufacturing Co., Ltd. | 25506 |
1 |
| Showa Denko K.K. | 2103 |
1 |
| Asahi Kasei Kabushiki Kaisha | 2781 |
1 |
| Bourns, Inc. | 177 |
1 |
| Boutiq Science Limited | 1 |
1 |
| Dowa Electronics Materials Co., Ltd. | 636 |
1 |
| Korea Minting, Security Printing & ID Card Operating Corp. | 43 |
1 |
| Powdermet, Inc. | 44 |
1 |
| SKC Co., Ltd. | 325 |
1 |
| Other owners | 12 |