Patents by Inventor Wen S. Ko

Wen S. Ko 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).

  • Process for producing rare earth magnet
    Patent number: 5087302
    Abstract: A process for producing a rare earth magnet of magnetically improved performance wherein a specific titanate coupling agent is added in one step of the process to enhance the oxidation resistance of the raw materials during production and a special degassing step is incorporated to allow for the removal of the residual titanate coupling agent. The resultant rare earth magnet exhibits improved maximum magnetic energy product ((BH).sub.max) and magnetic coercive force (H.sub.c) as well as other magnetic properties. Rare earth magnet produced by the process is also disclosed.
    Type: Grant
    Filed: January 18, 1991
    Date of Patent: February 11, 1992
    Assignee: Industrial Technology Research Institute
    Inventors: Cheng H. Lin, Shi K. Chen, Ying C. Hung, Wen S. Ko, Wen C. Chang