Patents by Inventor Masao Matsuzaki

Masao Matsuzaki 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).

  • Brush encoder with resilient contact strips
    Patent number: 6552671
    Abstract: A brush encoder includes a coding-plate support member, to which a coding plate is fixed, and a brush support member, to which a brush is fixed, the brush having a base portion and resilient contact strips. The brush support member includes a support surface to which the base portion of the brush is mounted; at least one through slot through which the resilient contact strips of the brush extend to come in sliding contact with the coding plate; and a fulcrum portion, which contacts the base portion of the brush in the vicinity of a border between the base portion and the resilient contact strips, so as to serve as a fulcrum about which the brush is biased to rotate in a direction to make the base portion contact the support surface when the resilient contact strips are pressed against the coding plate.
    Type: Grant
    Filed: December 26, 2001
    Date of Patent: April 22, 2003
    Assignee: Pentax Corporation
    Inventors: Makoto Iikawa, Masao Matsuzaki, Masashi Takahashi
  • Brush encoder
    Publication number: 20020080049
    Abstract: A brush encoder includes a coding-plate support member, to which a coding plate is fixed, and a brush support member, to which a brush is fixed, the brush having a base portion and resilient contact strips. The brush support member includes a support surface to which the base portion of the brush is mounted; at least one through slot through which the resilient contact strips of the brush extend to come in sliding contact with the coding plate; and a fulcrum portion, which contacts the base portion of the brush in the vicinity of a border between the base portion and the resilient contact strips, so as to serve as a fulcrum about which the brush is biased to rotate in a direction to make the base portion contact the support surface when the resilient contact strips are pressed against the coding plate.
    Type: Application
    Filed: December 26, 2001
    Publication date: June 27, 2002
    Applicant: ASAHI KOGAKU KOGYO KABUSHIKI KAISHA
    Inventors: Makoto Iikawa, Masao Matsuzaki, Masashi Takahashi