Patents by Inventor Ichiyoshi Tsuchiya

Ichiyoshi Tsuchiya 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).

  • Beaded edge forming method and apparatus
    Patent number: 4484467
    Abstract: A beaded edge is formed on a plate member, which has an upstanding outer edge bent with a predetermined radius of curvature, by placing the plate member on a lower die and applying a uniform force against the free edge of the upturned portion at an approximately 45.degree. angle to turn the outer portion inwardly to form an angle of about 45.degree. with the plate member, and then pressing the free edge downward into contact with the plate member while maintaining a substantially constant curvature of the bend region to produce a beaded edge.
    Type: Grant
    Filed: December 29, 1982
    Date of Patent: November 27, 1984
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Mikio Kitano, Hideaki Tobita, Toshio Uno, Kyoichi Yamaguchi, Ichiyoshi Tsuchiya