Patents by Inventor Akihiro Imayama

Akihiro Imayama 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).

  • Method of manufacturing cylindrical bonded magnet and manufacturing equipment for cylindrical bonded magnet
    Patent number: 9597828
    Abstract: In a method for manufacturing a cylindrical bonded magnet, a molding space having a cylindrical shape is filled with a bonded magnet composition containing a magnetic material and a resin. The magnetic material disposed in the molding space is magnetically oriented using an orientation magnet. The orientation magnet includes a first permanent magnet and a second permanent magnet. The first and second permanent magnets are disposed such that same poles are opposite each other in the axial direction.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: March 21, 2017
    Assignee: NICHIA CORPORATION
    Inventors: Shinji Yoshima, Muneo Yamamoto, Shuichi Tada, Akihiro Imayama