- All sections
- H - Electricity
- H01F - Magnetsinductancestransformersselection of materials for their magnetic properties
- H01F 1/18 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of sheets with insulating coating
Patent holdings for IPC class H01F 1/18
Total number of patents in this class: 270
10-year publication summary
|
10
|
20
|
21
|
13
|
21
|
20
|
15
|
12
|
9
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 7418 |
83 |
| Nippon Steel Corporation | 6754 |
68 |
| Nippon Steel & Sumitomo Metal Corporation | 1981 |
15 |
| POSCO Co., Ltd. | 1703 |
10 |
| Baoshan Iron & Steel Co., Ltd. | 1092 |
8 |
| Voestalpine Stahl GmbH | 384 |
8 |
| Vacuumschmelze GmbH & Co. KG | 259 |
5 |
| Hitachi Metals, Ltd. | 1915 |
4 |
| Henkel AG & Co. KGaA | 10714 |
4 |
| Aperam | 135 |
4 |
| ThyssenKrupp Electrical Steel GmbH | 29 |
3 |
| Proterial, Ltd. | 929 |
3 |
| General Electric Company | 13823 |
2 |
| Siemens AG | 24122 |
2 |
| Honeywell International Inc. | 12762 |
2 |
| Panasonic Corporation | 19340 |
2 |
| Hitachi, Ltd. | 15954 |
2 |
| LG Innotek Co., Ltd. | 8286 |
2 |
| Axalta Coating Systems IP Co., LLC | 473 |
2 |
| Centro Sviluppo Materiali S.p.A. | 24 |
2 |
| Other owners | 39 |