Patents by Inventor Tsuyoshi Nakamachi

Tsuyoshi Nakamachi 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).

  • Portable handset telephone or similar article
    Patent number: D297839
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: September 27, 1988
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shinichi Fujita, Tsuyoshi Nakamachi, Atusi Musya
  • Handset telephone
    Patent number: D301034
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: May 9, 1989
    Inventors: Shinichi Fujita, Tsuyoshi Nakamachi, Atusi Musya
  • Portable telephone or similar article
    Patent number: D302274
    Type: Grant
    Filed: December 29, 1987
    Date of Patent: July 18, 1989
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shinichi Fujita, Tsuyoshi Nakamachi, Yoshihiro Tsujita
  • Handset telephone
    Patent number: D302680
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: August 8, 1989
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shinichi Fujita, Tsuyoshi Nakamachi, Shigeyuki Yoshida
  • Portable cordless handset telephone
    Patent number: D322435
    Type: Grant
    Filed: January 19, 1990
    Date of Patent: December 17, 1991
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tsuyoshi Nakamachi, Takato Abe, Masahito Tsuchiya, Atsushi Musha
  • Movable handset telephone
    Patent number: D322782
    Type: Grant
    Filed: November 9, 1990
    Date of Patent: December 31, 1991
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tsuyoshi Nakamachi, Takashi Murakami, Michio Yamasaki
  • Mobile telephone set
    Patent number: D327679
    Type: Grant
    Filed: November 9, 1990
    Date of Patent: July 7, 1992
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tsuyoshi Nakamachi, Yoshihiro Hattori, Michio Yamasaki