- 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: 537
10-year publication summary
|
53
|
42
|
49
|
49
|
49
|
37
|
41
|
36
|
14
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Metals, Ltd. | 2021 |
64 |
| TDK Corporation | 6539 |
44 |
| Proterial, Ltd. | 765 |
28 |
| Murata Manufacturing Co., Ltd. | 23702 |
24 |
| JFE Steel Corporation | 6557 |
22 |
| Alps Alpine Co., Ltd. | 1989 |
17 |
| Qingdao Yunlu Advanced Materials Technology Co., Ltd. | 40 |
15 |
| Vacuumschmelze GmbH & Co. KG | 263 |
14 |
| Tohoku Magnet Institute Co., Ltd. | 24 |
13 |
| Crucible Intellectual Property, LLC | 91 |
12 |
| Metglas, Inc. | 44 |
12 |
| Apple Inc. | 52750 |
11 |
| Tohoku University | 2683 |
10 |
| TOKIN Corporation | 202 |
10 |
| Alps Electric Co., Ltd. | 835 |
9 |
| Nippon Steel Corporation | 6012 |
9 |
| Seiko Epson Corporation | 18989 |
8 |
| California Institute of Technology | 3936 |
8 |
| SANYO Special Steel Co., Ltd. | 214 |
8 |
| Toyota Motor Corporation | 30455 |
6 |
| Other owners | 193 |