Patents by Inventor Shinichiro Tenma

Shinichiro Tenma 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).

  • Manufacturing method of clutch for automatic transmission and automatic transmission
    Patent number: 8356397
    Abstract: In a clutch manufacturing method, inner peripheral portions of drum members, of two clutches are connected to a sleeve member, and a piston, a seal plate and a return spring are provided between the drum members, an insulator to apply electric isolation between the piston and the drum member or between the seal plate and another drum member is attached to either the piston or the seal plate. Then, the drum member, to which the electric isolation with the insulator is not applied, is connected to the sleeve member. Then, the piston, return sprig and seal plate are assembled to the sleeve member to which the drum member has been connected. Finally, the drum member, to which the electric isolation with the insulator has been applied, is connected to the sleeve member with electric welding.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: January 22, 2013
    Assignee: Mazda Motor Corporation
    Inventors: Hideo Toyota, Naohiro Sakaue, Katsutoshi Mukai, Koichi Matsuura, Shinichiro Tenma, Masashi Morihiro, Jun Nakamura, Masanori Nakai
  • MANUFACTURING METHOD OF CLUTCH FOR AUTOMATIC TRANSMISSION AND AUTOMATIC TRANSMISSION
    Publication number: 20100072015
    Abstract: In a clutch manufacturing method, inner peripheral portions of drum members, of two clutches are connected to a sleeve member, and a piston, a seal plate and a return spring are provided between the drum members, an insulator to apply electric isolation between the piston and the drum member or between the seal plate and another drum member is attached to either the piston or the seal plate. Then, the drum member, to which the electric isolation with the insulator is not applied, is connected to the sleeve member. Then, the piston, return sprig and seal plate are assembled to the sleeve member to which the drum member has been connected. Finally, the drum member, to which the electric isolation with the insulator has been applied, is connected to the sleeve member with electric welding.
    Type: Application
    Filed: July 8, 2009
    Publication date: March 25, 2010
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Hideo TOYOTA, Naohiro SAKAUE, Katsutoshi MUKAI, Koichi MATSUURA, Shinichiro TENMA, Masashi MORIHIRO, Jun NAKAMURA, Masanori NAKAI