Patents by Inventor Kaoru Sumita

Kaoru Sumita 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).

  • Tape recorder
    Patent number: D246455
    Type: Grant
    Filed: June 16, 1976
    Date of Patent: November 22, 1977
    Assignee: Sony Corporation
    Inventors: Shigeo Takahashi, Kaoru Sumita
  • Tape player
    Patent number: D269266
    Type: Grant
    Filed: April 30, 1981
    Date of Patent: June 7, 1983
    Assignee: Sony Corporation
    Inventor: Kaoru Sumita
  • Tape player
    Patent number: D270908
    Type: Grant
    Filed: October 6, 1981
    Date of Patent: October 11, 1983
    Assignee: Sony Corporation
    Inventor: Kaoru Sumita
  • Combined tape recorder and radio receiver
    Patent number: D275391
    Type: Grant
    Filed: April 22, 1982
    Date of Patent: September 4, 1984
    Assignee: Sony Corporation
    Inventor: Kaoru Sumita
  • Combined tape player and radio
    Patent number: D283122
    Type: Grant
    Filed: December 2, 1983
    Date of Patent: March 25, 1986
    Assignee: Sony Corporation
    Inventor: Kaoru Sumita
  • Tape player
    Patent number: D283123
    Type: Grant
    Filed: December 2, 1983
    Date of Patent: March 25, 1986
    Assignee: Sony Corporation
    Inventor: Kaoru Sumita
  • Combined tape player and radio receiver
    Patent number: D298234
    Type: Grant
    Filed: January 10, 1986
    Date of Patent: October 25, 1988
    Assignee: Sony Corporation
    Inventor: Kaoru Sumita
  • Tape player
    Patent number: D298237
    Type: Grant
    Filed: January 10, 1986
    Date of Patent: October 25, 1988
    Assignee: Sony Corporation
    Inventor: Kaoru Sumita
  • Headphone
    Patent number: D300133
    Type: Grant
    Filed: July 23, 1985
    Date of Patent: March 7, 1989
    Assignee: Sony Corporation
    Inventors: Takefumi Daidoh, Kaoru Sumita
  • Coaxial-type electrical plug
    Patent number: D300425
    Type: Grant
    Filed: August 22, 1985
    Date of Patent: March 28, 1989
    Assignee: Sony Corporation
    Inventor: Kaoru Sumita
  • Battery pack
    Patent number: D305639
    Type: Grant
    Filed: October 3, 1988
    Date of Patent: January 23, 1990
    Assignee: Sony Corporation
    Inventors: Tsuguo Miki, Kaoru Sumita
  • Video camera combined with video tape recorder
    Patent number: D305903
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: February 6, 1990
    Assignee: Sony Kabushiki Kaisha
    Inventor: Kaoru Sumita
  • Battery pack
    Patent number: D307261
    Type: Grant
    Filed: October 3, 1988
    Date of Patent: April 17, 1990
    Assignee: Sony Corporation
    Inventors: Tsuguo Miki, Kaoru Sumita
  • Video camera combined with a video tape recorder
    Patent number: D346615
    Type: Grant
    Filed: July 20, 1992
    Date of Patent: May 3, 1994
    Assignee: Sony Corporation
    Inventor: Kaoru Sumita