Patents by Inventor Takamasa Degawa

Takamasa Degawa 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).

  • Electronic apparatus that detects different kinds of operations on rotational operation member
    Patent number: 8976047
    Abstract: A mechanism enabling an electronic dial to operate without generating a click noise. The dial includes a rotational operation member that is turnable. A rotary plate is rigidly secured to the operation member. The rotary plate is formed of a conductive material and has a plurality of detecting portions circumferentially formed thereon. A printed circuit board is disposed between the operation member and the rotary plate. The printed circuit board has a first detection electrode group formed on a surface thereof opposed to the operation member and a second detection electrode group formed on a surface thereof opposed to the rotary plate. A detection circuit detects a touch operation onto the operation member based on an output from the first detection electrode group and detects a turning operation of the operation member based on an output from the second detection electrode group.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: March 10, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takamasa Degawa
  • ELECTRONIC APPARATUS THAT DETECTS DIFFERENT KINDS OF OPERATIONS ON ROTATIONAL OPERATION MEMBER
    Publication number: 20120146818
    Abstract: A mechanism enabling an electronic dial to operate without generating a click noise. The dial includes a rotational operation member that is turnable. A rotary plate is rigidly secured to the operation member. The rotary plate is formed of a conductive material and has a plurality of detecting portions circumferentially formed thereon. A printed circuit board is disposed between the operation member and the rotary plate. The printed circuit board has a first detection electrode group formed on a surface thereof opposed to the operation member and a second detection electrode group formed on a surface thereof opposed to the rotary plate. A detection circuit detects a touch operation onto the operation member based on an output from the first detection electrode group and detects a turning operation of the operation member based on an output from the second detection electrode group.
    Type: Application
    Filed: December 2, 2011
    Publication date: June 14, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Takamasa Degawa