Patents Represented by Attorney, Agent or Law Firm Brinks Holfer Gilson & Lione
  • Hard magnetic material
    Patent number: 6235129
    Abstract: A hard magnetic material contains Co as a main component, at least one element Q of P, C, Si and B, and Sm, and an amorphous phase and a fine crystalline phase. The texture of the hard magnetic material contains 50% by volume or more of fine crystalline phase having an average crystal grain size of 100 nm or less, and has a mixed phase state containing a soft magnetic phase and a hard magnetic phase. Further, anisotropy is imparted to the crystal axis of the hard magnetic phase.
    Type: Grant
    Filed: December 1, 1998
    Date of Patent: May 22, 2001
    Assignee: ALPS Electric Co., Ltd.
    Inventors: Akinori Kojima, Akihiro Makino, Takashi Hatanai, Yutaka Yamamoto, Akihisa Inoue