Patents by Inventor Toshimasa Akazawa

Toshimasa Akazawa 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).

  • Transceiver
    Patent number: D243861
    Type: Grant
    Filed: August 4, 1976
    Date of Patent: March 29, 1977
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Toshimasa Akazawa
  • Combined tape recorder, tuner and amplifier
    Patent number: D245978
    Type: Grant
    Filed: March 17, 1976
    Date of Patent: October 4, 1977
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Toshimasa Akazawa
  • Transceiver
    Patent number: D256238
    Type: Grant
    Filed: June 15, 1978
    Date of Patent: August 5, 1980
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Toshimasa Akazawa
  • Radio receiver
    Patent number: D257351
    Type: Grant
    Filed: September 27, 1978
    Date of Patent: October 14, 1980
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshimasa Akazawa, Munenori Fujimoto, Kikuo Ohta, Benito Mishiro
  • Combined radio, clock and calculator
    Patent number: D260646
    Type: Grant
    Filed: November 30, 1979
    Date of Patent: September 8, 1981
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshimasa Akazawa, Kikuo Ohta, Toshio Igo, Benito Mishiro