Patents by Inventor Wang Biao

Wang Biao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Permanent magnetic materials of the Fe-B-R tpe, containing Ce and Nd and/or Pr, and process for manufacture
    Patent number: 6669788
    Abstract: A Fe—B—R type permanent magnetic, consisting of: 13-19 atomic % R, where R consists essentially of a mixture of rare earth elements Nd and/or Pr, and Ce, where Ce is between 0.2 and 5.0 wt. % of R; 4-20 atomic % B, and the balance comprising Fe. In a preferred aspect, R comprises 15-16 atomic % B; of which Ce is approximately 0.5% and the remaining rare earths Pr and Nd are in a ratio of 3:1. A process of producing a Fe—B—R permanent magnet as described above, and a Fe—B—R magnetic material made by such process.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: December 30, 2003
    Assignees: General Electric Company, Batou Iron and Steel (Group) Co. LTD
    Inventors: Chen Pei Xin, Wang Biao, Ni De Zhen, Mark Gilbert Benz, Juliana C. Shei