- All sections
- H - Electricity
- H01F - Magnets; inductances; transformers; selection of materials for their magnetic properties
- H01F 1/33 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metallic particles having oxide skin
Patent holdings for IPC class H01F 1/33
Total number of patents in this class: 266
10-year publication summary
19
|
14
|
10
|
17
|
32
|
23
|
19
|
8
|
16
|
9
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Taiyo Yuden Co., Ltd. | 1809 |
27 |
TDK Corporation | 6306 |
22 |
Hitachi Metals, Ltd. | 2175 |
18 |
Murata Manufacturing Co., Ltd. | 22355 |
15 |
Sumitomo Electric Industries, Ltd. | 14131 |
11 |
Samsung Electro-mechanics Co., Ltd. | 4798 |
8 |
National Institute of Advanced Industrial Science and Technology | 3677 |
8 |
Seiko Epson Corporation | 18724 |
7 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
7 |
Diamet Corporation | 93 |
6 |
Dowa Electronics Materials Co., Ltd. | 610 |
6 |
Toyota Motor Corporation | 28582 |
5 |
Toshiba Corporation | 12017 |
5 |
Toda Kogyo Corporation | 323 |
5 |
TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13301 |
5 |
Panasonic Corporation | 20786 |
4 |
Mitsubishi Materials Corporation | 2378 |
4 |
Mitsubishi Materials PMG Corporation | 19 |
4 |
Sumitomo Electric Sintered Alloy, Ltd. | 214 |
4 |
BASF SE | 19740 |
3 |
Other owners | 92 |