Invention Grant
- Patent Title: Nano-composite magnet, quenched alloy for nano-composite magnet, and method for producing them and method for distinguishing them
- Patent Title (中): 纳米复合磁体，纳米复合磁体淬火合金及其制造方法和区别它们的方法
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Application No.: US12781093Application Date: 2010-05-17
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Publication No.: US07988797B2Publication Date: 2011-08-02
- Inventor: Yasutaka Shigemoto , Satoshi Hirosawa , Toshio Miyoshi
- Applicant: Yasutaka Shigemoto , Satoshi Hirosawa , Toshio Miyoshi
- Applicant Address: JP Tokyo
- Assignee: Hitachi Metals, Ltd.
- Current Assignee: Hitachi Metals, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Keating & Bennett, LLP
- Priority: JP2003-411533 20031210
- Main IPC: H01F1/057
- IPC: H01F1/057 ; H01F1/058
Abstract:
A nanocomposite magnet according to the present invention has a composition represented by the general formula: RxQyMz(Fe1-mTm)bal, where R is at least one rare-earth element, Q is at least one element selected from the group consisting of B and C, M is at least one metal element that is selected from the group consisting of Al, Si, Ti, V, Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb and that always includes Ti, and T is at least one element selected from the group consisting of Co and Ni. The mole fractions x, y, z and m satisfy the inequalities of 6 at %≦x
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