Soft magnetic powder, Fe-based nanocrystalline alloy powder, magnetic component and dust core

US11814707B2 · kind B2 · utility

Assignees

• TOKIN CORPORATION · JP
• JFE Steel Corporation · JP

Inventors

• Akiri URATA · Sendai, JP
• Miho CHIBA · Sendai, JP
• Mineo Muraki · Okayama, JP
• Makoto Nakaseko · Tokyo, JP
• Takuya TAKASHITA · Tokyo, JP

Key dates

• Filing date: Jan 26, 2018
• Grant date: Nov 14, 2023
• Expiry date: Sep 4, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01F1/15333
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

This soft magnetic powder is represented by composition formula FeaSibBcPdCue with the exception of unavoidable impurities. In the composition formula, a, b, c, d and e satisfy 79≤a≤84.5 at %, 0≤b<6 at %, 4≤c≤10 at %, 4<d≤11 at %, 0.2≤e<0.4 at %, and a+b+c+d+e=100 at %.