Patents by Inventor Yasumasa Serizawa

Yasumasa Serizawa 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).

  • Publication number: 20240038468
    Abstract: A switch device may include a movable body that is displaced in an axial direction in conjunction with an operation of an operated portion, a magnet provided on the movable body, and a plurality of detection elements arranged facing the magnet. The plurality of detection elements may include a first detection element with a detection surface facing the magnet and a reversed second detection element with a detection surface facing away from the magnet. The total number of the plurality of detection elements may be at least three.
    Type: Application
    Filed: July 26, 2023
    Publication date: February 1, 2024
    Inventors: Yasumasa Serizawa, Yuya Numata
  • Patent number: 8986018
    Abstract: There is provided a rotary connector device in which a flat cable is wound and accommodated in an annular space between a rotating rotor and a fixed stator. The rotor is provided with a rotor main body made of a PBT resin, and a rotor cover portion made of a polyacetal resin and overlapping the rotor main body to ensure strength of the rotary connector device and reduce sliding noises between the flat cable and the rotor. The rotor cover portion is provided with an opening portion for pulling the flat cable in the annular space out of the rotor main body, and a concave portion is formed in a disc portion of the rotor cover portion for improving work efficiency at the time of assembling the rotor main body and the rotor cover portion.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: March 24, 2015
    Assignee: Valeo Japan Co., Ltd.
    Inventors: Junichi Sakurai, Yasumasa Serizawa
  • Patent number: 8740626
    Abstract: A spacer arranged in an annular space between a rotor and a stator for supporting a roller reversing a winding direction of a flat cable is made of plastic having high lubricating properties. First guide portions on an annular plate portion are spaced by equal intervals from each other. The first guide portion includes an inner guide rib having a semicircle cross section projecting inward, an outer guide rib having a semicircle cross section projecting outward, and a tension wall connecting the inner guide rib and the outer guide rib. A second guide portion is provided between the first guide portions, and includes three parallel plate ribs extending from an inner peripheral side to an outer peripheral side of the annular plate portion, and circumferential connecting walls connecting the three parallel plate ribs.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: June 3, 2014
    Assignee: Valeo Japan Co., Ltd.
    Inventors: Junichi Sakurai, Yasumasa Serizawa
  • Publication number: 20130014975
    Abstract: A spacer arranged in an annular space between a rotor and a stator for supporting a roller reversing a winding direction of a flat cable is made of plastic having high lubricating properties. First guide portions on an annular plate portion are spaced by equal intervals from each other. The first guide portion includes an inner guide rib having a semicircle cross section projecting inward, an outer guide rib having a semicircle cross section projecting outward, and a tension wall connecting the inner guide rib and the outer guide rib. A second guide portion is provided between the first guide portions, and includes three parallel plate ribs extending from an inner peripheral side to an outer peripheral side of the annular plate portion, and circumferential connecting walls connecting the three parallel plate ribs.
    Type: Application
    Filed: July 5, 2012
    Publication date: January 17, 2013
    Applicant: Niles Co., Ltd.
    Inventors: Junichi Sakurai, Yasumasa Serizawa