- All sections
- C - Chemistry; metallurgy
- C22C - Alloys
- C22C 45/02 - Amorphous alloys with iron as the major constituent
Patent holdings for IPC class C22C 45/02
Total number of patents in this class: 535
10-year publication summary
|
27
|
53
|
42
|
49
|
47
|
49
|
35
|
41
|
34
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Metals, Ltd. | 2175 |
64 |
| TDK Corporation | 6306 |
41 |
| Murata Manufacturing Co., Ltd. | 22355 |
26 |
| Proterial, Ltd. | 638 |
26 |
| JFE Steel Corporation | 6067 |
24 |
| Alps Alpine Co., Ltd. | 1831 |
16 |
| Apple Inc. | 50209 |
14 |
| Tohoku Magnet Institute Co., Ltd. | 28 |
14 |
| Metglas, Inc. | 44 |
13 |
| Vacuumschmelze GmbH & Co. KG | 253 |
13 |
| Crucible Intellectual Property, LLC | 93 |
12 |
| Qingdao Yunlu Advanced Materials Technology Co., Ltd. | 32 |
12 |
| Tohoku University | 2526 |
11 |
| Alps Electric Co., Ltd. | 851 |
10 |
| California Institute of Technology | 3884 |
8 |
| Nippon Steel Corporation | 5649 |
8 |
| SANYO Special Steel Co., Ltd. | 201 |
8 |
| TOKIN Corporation | 199 |
8 |
| Seiko Epson Corporation | 18724 |
7 |
| Toyota Motor Corporation | 28582 |
6 |
| Other owners | 194 |