Patents by Inventor Toshihiko Kaihotsu

Toshihiko Kaihotsu 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 for manufacturing arm of joint and joint
    Publication number: 20030170069
    Abstract: A first-stage intermediate formed body (60) is forged by applying pressure in one direction to a working material (41) made of an aluminum alloy. The first-stage intermediate formed body (60) has a tubular arm portion (21), a generally spherical first head portion (62) provided at one end of the arm portion (21), and a ledge portion (63) at the other end of the arm portion (21). A second-stage intermediate formed body (67) is formed by deforming the ledge portion (63) by upsetting. The arm portion (21) of the second-stage intermediate formed body (67) has a second head portion (66) and an axial hole (21a). The second head portion (66) has a rounded shape and is located at the aforementioned other end of the arm portion (21). The axial hole (21a) is formed in the arm portion (21).
    Type: Application
    Filed: May 1, 2003
    Publication date: September 11, 2003
    Inventors: Yoshihiro Suzuki, Kouichi Fujita, Toshihiko Kaihotsu