Patents by Inventor Yoshinobu Asai

Yoshinobu Asai 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).

  • Amplifier
    Patent number: D242636
    Type: Grant
    Filed: May 1, 1975
    Date of Patent: December 7, 1976
    Assignee: Sansui Electric Co., Ltd.
    Inventor: Yoshinobu Asai
  • Amplifier
    Patent number: D242637
    Type: Grant
    Filed: May 1, 1975
    Date of Patent: December 7, 1976
    Assignee: Sansui Electric Co., Ltd.
    Inventor: Yoshinobu Asai
  • Amplifier
    Patent number: D242638
    Type: Grant
    Filed: June 18, 1975
    Date of Patent: December 7, 1976
    Assignee: Sansui Electric Co., Ltd.
    Inventor: Yoshinobu Asai
  • Combined amplifier and tuner
    Patent number: D243255
    Type: Grant
    Filed: June 18, 1975
    Date of Patent: February 1, 1977
    Assignee: Sansui Electric Co., Ltd.
    Inventor: Yoshinobu Asai
  • Speaker cabinet
    Patent number: D248471
    Type: Grant
    Filed: November 4, 1976
    Date of Patent: July 11, 1978
    Assignee: Sansui Electric Co., Ltd.
    Inventor: Yoshinobu Asai
  • Tape deck
    Patent number: D250759
    Type: Grant
    Filed: March 7, 1977
    Date of Patent: January 9, 1979
    Assignee: Sansui Electric Co., Ltd.
    Inventor: Yoshinobu Asai