Patents by Inventor Tutomu Asaina

Tutomu Asaina 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 and apparatus for friction stir welding
    Patent number: 7093745
    Abstract: A body member and flange members are butted together at a first abutment portion and a second abutment portion. The first and second abutment portions are held by first and second backing jigs, respectively. The first backing jig has a circumscribing recessed section corresponding to an inner circumferential surface of the first abutment portion. Further, the first backing jig has a circumscribing opening communicated with the bottom of the recessed section. On the other hand, the second backing jig has a circumscribing recessed section corresponding to an inner circumferential surface of the second abutment portion. Further, the second backing jig has a circumscribing opening communicated with the bottom of the recessed section. First and second buffer members are attached to the recessed sections, respectively.
    Type: Grant
    Filed: January 14, 2004
    Date of Patent: August 22, 2006
    Assignee: Honda Motor Co., Ltd.
    Inventors: Hideo Nakamura, Tokiyuki Wakayama, Noriaki Ishii, Tutomu Asaina, Masaru Odajima, Masahiko Natsuume
  • Method of and apparatus for friction stir welding
    Publication number: 20040144832
    Abstract: A body member and flange members are butted together at a first abutment portion and a second abutment portion. The first and second abutment portions are held by first and second backing jigs, respectively. The first backing jig has a circumscribing recessed section corresponding to an inner circumferential surface of the first abutment portion. Further, the first backing jig has a circumscribing opening communicated with the bottom of the recessed section. On the other hand, the second backing jig has a circumscribing recessed section corresponding to an inner circumferential surface of the second abutment portion. Further, the second backing jig has a circumscribing opening communicated with the bottom of the recessed section. First and second buffer members are attached to the recessed sections, respectively.
    Type: Application
    Filed: January 14, 2004
    Publication date: July 29, 2004
    Applicant: Honda Motor Co., Ltd
    Inventors: Hideo Nakamura, Tokiyuki Wakayama, Noriaki Ishii, Tutomu Asaina, Masaru Odajima, Masahiko Natsuume