Patents by Inventor Youzou Matsuzaka

Youzou Matsuzaka 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).

  • Optical disc cartridge
    Patent number: D328457
    Type: Grant
    Filed: December 19, 1989
    Date of Patent: August 4, 1992
    Assignee: Sony Corporation
    Inventor: Youzou Matsuzaka
  • Tape player combined with a radio tuner
    Patent number: D382267
    Type: Grant
    Filed: May 15, 1996
    Date of Patent: August 12, 1997
    Assignee: Sony Corporation
    Inventor: Youzou Matsuzaka
  • Tape player
    Patent number: D383752
    Type: Grant
    Filed: May 15, 1996
    Date of Patent: September 16, 1997
    Assignee: Sony Corporation
    Inventor: Youzou Matsuzaka