Invention Grant
US08741170B2 Ferrite particles for bonded magnet, resin composition for bonded magnet and molded products using the same
有权
用于粘结磁体的铁氧体颗粒，用于粘结磁体的树脂组合物和使用其的模制产品
- Patent Title: Ferrite particles for bonded magnet, resin composition for bonded magnet and molded products using the same
- Patent Title (中): 用于粘结磁体的铁氧体颗粒，用于粘结磁体的树脂组合物和使用其的模制产品
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Application No.: US12572728Application Date: 2009-10-02
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Publication No.: US08741170B2Publication Date: 2014-06-03
- Inventor: Yasuhiko Fujii , Minoru Ohsugi , Yasushi Nishio , Yosuke Koyama , Shigeru Takaragi
- Applicant: Yasuhiko Fujii , Minoru Ohsugi , Yasushi Nishio , Yosuke Koyama , Shigeru Takaragi
- Applicant Address: JP Otake-shi, Hiroshima-ken
- Assignee: Toda Kogyo Corporation
- Current Assignee: Toda Kogyo Corporation
- Current Assignee Address: JP Otake-shi, Hiroshima-ken
- Agency: Nixon & Vanderhye P.C.
- Main IPC: C04B35/26
- IPC: C04B35/26 ; C04B35/64
Abstract:
The present invention relates to ferrite particles for bonded magnet, having a volume-average particle diameter of 2.1 to 2.7 μm and a particle diameter x90 of 4.3 to 5.4 μm wherein the x90 represents a particle diameter at which a cumulative percentage of particles under sieve (undersize particles) based on a volume thereof is 90%, when determined from a particle size distribution thereof measured by using a laser diffraction type particle size distribution measuring apparatus.
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