Patents by Inventor Masahiko Happo

Masahiko Happo 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 radio telephone
    Patent number: D344943
    Type: Grant
    Filed: September 15, 1992
    Date of Patent: March 8, 1994
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takashi Kajita, Takaharu Ando, Tadao Nakamura, Masahiko Happo
  • Portable radio telephone
    Patent number: D345157
    Type: Grant
    Filed: September 15, 1992
    Date of Patent: March 15, 1994
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masahiko Happo, Tomiaki Shirakawa, Tadao Nakamura, Takato Yokouchi
  • Portable radio telephone
    Patent number: D346382
    Type: Grant
    Filed: September 15, 1992
    Date of Patent: April 26, 1994
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takaharu Ando, Tadao Nakamura, Masahiko Happo, Tomiaki Shirakawa
  • Optical disk cartridge
    Patent number: D346596
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: May 3, 1994
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takashi Kajita, Masahiko Happo, Tomiaki Shirakawa
  • Optical disk cartridge
    Patent number: D363711
    Type: Grant
    Filed: May 27, 1994
    Date of Patent: October 31, 1995
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Masahiko Happo
  • Handheld information communications terminal
    Patent number: D370673
    Type: Grant
    Filed: July 26, 1995
    Date of Patent: June 11, 1996
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masahiko Happo, Tomiaki Ishihara, Takashi Kajita