Patents by Inventor Masahiro Yaezawa

Masahiro Yaezawa 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).

  • Patent number: D328746
    Type: Grant
    Filed: July 26, 1990
    Date of Patent: August 18, 1992
    Inventors: Atsushi Ishibashi, Masahiro Yaezawa
  • Patent number: D336641
    Type: Grant
    Filed: July 18, 1991
    Date of Patent: June 22, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Shinichi Uruma, Masahiro Yaezawa, Tadashi Kitashima, Isao Aburatani, Tsutomu Satou, Daiji Tsuboi
  • Patent number: D431232
    Type: Grant
    Filed: August 12, 1999
    Date of Patent: September 26, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Yoshimasa Yokoyama, Asako Katayama, Fumiyoshi Akiyama, Shouji Uchiyama, Hiroshi Suzuki, Masahiro Yaezawa