Patents by Inventor Yukinori Fujikawa

Yukinori Fujikawa 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).

  • Proximity sensor
    Patent number: 9671256
    Abstract: A proximity sensor includes a body, a coil, a cap being cylindrical and having a bottom, a hollow housing, and a ring-shaped sealing member. The body includes the coil bobbin at a first end. The coil is wound around the coil bobbin. The cap is to be placed to a body so as to cover a coil bobbin. The housing includes, at a fist end, a circular-cylinder portion having an opening. The housing is to be placed to the body in such a manner that the cap protrudes from the opening. The sealing member is disposed between the outer peripheral surface of the cap and the inner peripheral surface of the circular-cylinder portion of the housing.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: June 6, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takashi Suma, Yukinori Fujikawa, Nozomu Sakurai
  • PROXIMITY SENSOR
    Publication number: 20160290836
    Abstract: A proximity sensor includes a body, a coil, a cap being cylindrical and having a bottom, a hollow housing, and a ring-shaped sealing member. The body includes the coil bobbin at a first end. The coil is wound around the coil bobbin. The cap is to be placed to a body so as to cover a coil bobbin. The housing includes, at a fist end, a circular-cylinder portion having an opening. The housing is to be placed to the body in such a manner that the cap protrudes from the opening. The sealing member is disposed between the outer peripheral surface of the cap and the inner peripheral surface of the circular-cylinder portion of the housing.
    Type: Application
    Filed: March 18, 2016
    Publication date: October 6, 2016
    Inventors: TAKASHI SUMA, YUKINORI FUJIKAWA, NOZOMU SAKURAI
  • Switch unit
    Patent number: 8624135
    Abstract: A switch unit for detecting movement of a target object in a first direction and in a second direction orthogonal to the first direction includes a first movable body arranged to move in the first direction together with the movement of the target object in the first direction, a first substrate provided with a first detecting unit for detecting a position of the first movable body in the first direction, a second movable body arranged to move in the second direction together with the movement of the target object in the second direction, and a second substrate provided with a second detecting unit for detecting a position of the second movable body in the second direction.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: January 7, 2014
    Assignees: Panasonic Corporation, Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho
    Inventors: Yukinori Fujikawa, Hideaki Itou, Takumi Kuroki
  • SWITCH UNIT
    Publication number: 20120061225
    Abstract: A switch unit for detecting movement of a target object in a first direction and in a second direction orthogonal to the first direction includes a first movable body arranged to move in the first direction together with the movement of the target object in the first direction, a first substrate provided with a first detecting unit for detecting a position of the first movable body in the first direction, a second movable body arranged to move in the second direction together with the movement of the target object in the second direction, and a second substrate provided with a second detecting unit for detecting a position of the second movable body in the second direction.
    Type: Application
    Filed: September 9, 2011
    Publication date: March 15, 2012
    Applicants: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO, PANASONIC ELECTRIC WORKS CO., LTD.
    Inventors: Yukinori Fujikawa, Hideaki Itou, Takumi Kuroki