Patents by Inventor Yoshichika Oya

Yoshichika Oya 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).

  • Edge-rounding method and apparatus therefor
    Patent number: 4078905
    Abstract: A method and an apparatus for rounding edges of workpieces by carrying the workpieces on a conveyor, rounding by a first pair of rotary buffs the edge portions of each workpiece being conveyed which are opposed to the resultant feed directions of the buffing faces of the buffs, the feeds of the buffing faces in sliding contact with the workpiece having a direction resultant of a velocity component pointing contrary to the running direction of the conveyor and a velocity component directed normal to the direction of the velocity component and toward one edge of the conveyor and also having a direction resultant of a velocity component pointing in the same direction as the running direction of the conveyor and a velocity component directed normal to the velocity component and toward the opposite edge of the conveyor, and then rounding by a second pair of rotary buffs the edge portions of the workpiece being conveyed which are opposed to the resultant feed directions of the buffing faces of the buffs, the feed d
    Type: Grant
    Filed: December 3, 1976
    Date of Patent: March 14, 1978
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventor: Yoshichika Oya