Patents by Inventor Koichi Maruta

Koichi Maruta 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).

  • Ultrasonic diagnostic devices and ultrasonic endoscopes
    Patent number: 5980462
    Abstract: An ultrasonic diagnostic device of which forms two scanning planes includes an ultrasonic search unit at the tip of a long insertion part which conducts radial scanning by emitting ultrasonic waves in a direction vertical to the longitudinal axis direction of the insertion part, a reflector provided along with the ultrasonic search unit which reflects a part of the ultrasonic waves emitted from the ultrasonic search unit to the anterior direction of the insertion part, and a tip cap which covers the ultrasonic search unit and the reflector and is made of a material permeable to the ultrasonic waves emitted from the ultrasonic search unit.
    Type: Grant
    Filed: October 27, 1998
    Date of Patent: November 9, 1999
    Assignee: Olympus Optical Co., Ltd.
    Inventor: Koichi Maruta
  • Combined disc player, radio receiver and tape recorder
    Patent number: D502460
    Type: Grant
    Filed: January 15, 2004
    Date of Patent: March 1, 2005
    Assignee: Sony Corporation
    Inventors: Arinobu Ueda, Koichi Maruta
  • Disc player
    Patent number: D503392
    Type: Grant
    Filed: January 15, 2004
    Date of Patent: March 29, 2005
    Assignee: Sony Corporation
    Inventors: Takahiro Naito, Koichi Maruta
  • Disc player
    Patent number: D503393
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: March 29, 2005
    Assignee: Sony Corporation
    Inventors: Takahiro Naito, Koichi Maruta
  • Combined disc player, radio receiver and tape recorder
    Patent number: D508907
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: August 30, 2005
    Assignee: Sony Corporation
    Inventors: Arinobu Ueda, Koichi Maruta
  • Combined disc player, radio receiver and tape recorder
    Patent number: D512978
    Type: Grant
    Filed: January 15, 2004
    Date of Patent: December 20, 2005
    Assignee: Sony Corporation
    Inventors: Arinobu Ueda, Koichi Maruta