Patents by Inventor Keiichi Totsuka

Keiichi Totsuka 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).

  • Self-standing mini remote commander
    Patent number: 5457448
    Abstract: A remote control unit for a television or video tape recorder has a minimal number of keys to simplify use of the control unit. The unit is shaped having a rounded bottom and is weighted toward that bottom, so that the remote control unit will stand upright even if momentarily tipped over. The remote control unit includes a programmable read-only memory, so that it can control various units such as a television, video tape recorder, compact audio disc player, and the like. The rounded bottom is attached to the main body of the remote control unit in a rotary fashion so that the bottom may be rotated to select different functions, such as the television or video tape recorder to be controlled.
    Type: Grant
    Filed: August 3, 1993
    Date of Patent: October 10, 1995
    Assignee: Sony Electronics, Inc.
    Inventors: Keiichi Totsuka, Richard Gioscia
  • Television receiver
    Patent number: D308202
    Type: Grant
    Filed: July 20, 1987
    Date of Patent: May 29, 1990
    Assignee: Sony Corporation
    Inventors: Teiyu Gotoh, Keiichi Totsuka, Ira Diamond
  • Combined tape player and radio tuner
    Patent number: D321513
    Type: Grant
    Filed: February 24, 1989
    Date of Patent: November 12, 1991
    Assignee: Sony Corporation
    Inventors: Keiichi Totsuka, Takashi Sogabe
  • Radio receiver
    Patent number: D327269
    Type: Grant
    Filed: April 28, 1989
    Date of Patent: June 23, 1992
    Assignee: Sony Corporation
    Inventors: Keiichi Totsuka, Takashi Sogabe
  • Combined radio tuner and clock
    Patent number: D342520
    Type: Grant
    Filed: December 31, 1991
    Date of Patent: December 21, 1993
    Assignee: Sony Corporation
    Inventor: Keiichi Totsuka
  • Radio tuner
    Patent number: D342947
    Type: Grant
    Filed: December 31, 1991
    Date of Patent: January 4, 1994
    Assignee: Sony Corporation
    Inventor: Keiichi Totsuka
  • Combined loudspeaker and stand
    Patent number: D392973
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: March 31, 1998
    Assignees: Sony Corporation, Sony America
    Inventors: Knut T. Fenner, Richard Gioscia, Keiichi Totsuka
  • Subwoofer loudspeaker
    Patent number: D392974
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: March 31, 1998
    Assignees: Sony Corporation, Sony America
    Inventors: Knut T. Fenner, Richard Gioscia, Keiichi Totsuka
  • Combined loudspeaker and stand with subwoofer
    Patent number: D392976
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: March 31, 1998
    Assignees: Sony Corporation, Sony America
    Inventors: Knut T. Fenner, Richard Gioscia, Keiichi Totsuka
  • Loudspeaker with removable grille cloth
    Patent number: D399845
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: October 20, 1998
    Assignees: Sony Corporation, Sony Corporation of America
    Inventors: Knut T. Fenner, Richard Gioscia, Keiichi Totsuka