Patents by Inventor Shunsuke Hiyama

Shunsuke Hiyama 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).

  • Electromagnetic valve and fixing structure
    Patent number: 10036483
    Abstract: An electromagnetic valve has: a coil; a casing encircling the coil and having a cylinder portion and nail portions; a movable core moving axially in the wound coil; a fixed core set at an opening end of the casing; a valve body fixed to the opening end of the casing together with the fixed core by bending inwards the nail portions; and a spool valve body moving axially in the valve body. The nail portion is provided with a wide width portion at a root side, a narrow width portion at a top side and a stepped portion between the wide width portion and the narrow width portion. The stepped portion is positioned at a substantially same position as an outer edge of one end portion of the valve body, or positioned at a cylinder portion side with respect to the one end portion outer edge of the valve body.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: July 31, 2018
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Shunsuke Hiyama, Ryohei Kobayashi, Yasuhide Takada, Kei Harada
  • Electromagnetic Valve and Fixing Structure
    Publication number: 20170307100
    Abstract: An electromagnetic valve has: a coil; a casing encircling the coil and having a cylinder portion and nail portions; a movable core moving axially in the wound coil; a fixed core set at an opening end of the casing; a valve body fixed to the opening end of the casing together with the fixed core by bending inwards the nail portions; and a spool valve body moving axially in the valve body. The nail portion is provided with a wide width portion at a root side, a narrow width portion at a top side and a stepped portion between the wide width portion and the narrow width portion. The stepped portion is positioned at a substantially same position as an outer edge of one end portion of the valve body, or positioned at a cylinder portion side with respect to the one end portion outer edge of the valve body.
    Type: Application
    Filed: July 13, 2017
    Publication date: October 26, 2017
    Inventors: Shunsuke HIYAMA, Ryohei KOBAYASHI, Yasuhide TAKADA, Kei HARADA
  • Electromagnetic valve and fixing structure
    Patent number: 9732875
    Abstract: An electromagnetic valve has: a coil; a casing encircling the coil and having a cylinder portion and nail portions; a movable core moving axially in the wound coil; a fixed core set at an opening end of the casing; a valve body fixed to the opening end of the casing together with the fixed core by bending inwards the nail portions; and a spool valve body moving axially in the valve body. The nail portion is provided with a wide width portion at a root side, a narrow width portion at a top side and a stepped portion between the wide width portion and the narrow width portion. The stepped portion is positioned at a substantially same position as an outer edge of one end portion of the valve body, or positioned at a cylinder portion side with respect to the one end portion outer edge of the valve body.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: August 15, 2017
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Shunsuke Hiyama, Ryohei Kobayashi, Yasuhide Takada, Kei Harada
  • Electromagnetic Valve and Fixing Structure
    Publication number: 20160252189
    Abstract: An electromagnetic valve has: a coil; a casing encircling the coil and having a cylinder portion and nail portions; a movable core moving axially in the wound coil; a fixed core set at an opening end of the casing; a valve body fixed to the opening end of the casing together with the fixed core by bending inwards the nail portions; and a spool valve body moving axially in the valve body. The nail portion is provided with a wide width portion at a root side, a narrow width portion at a top side and a stepped portion between the wide width portion and the narrow width portion. The stepped portion is positioned at a substantially same position as an outer edge of one end portion of the valve body, or positioned at a cylinder portion side with respect to the one end portion outer edge of the valve body.
    Type: Application
    Filed: May 10, 2016
    Publication date: September 1, 2016
    Inventors: Shunsuke HIYAMA, Ryohei KOBAYASHI, Yasuhide TAKADA, Kei HARADA
  • Electromagnetic valve and fixing structure
    Patent number: 9366356
    Abstract: An electromagnetic valve has: a coil; a casing encircling the coil and having a cylinder portion and nail portions; a movable core moving axially in the wound coil; a fixed core set at an opening end of the casing; a valve body fixed to the opening end of the casing together with the fixed core by bending inwards the nail portions; and a spool valve body moving axially in the valve body. The nail portion is provided with a wide width portion at a root side, a narrow width portion at a top side and a stepped portion between the wide width portion and the narrow width portion. The stepped portion is positioned at a substantially same position as an outer edge of one end portion of the valve body, or positioned at a cylinder portion side with respect to the one end portion outer edge of the valve body.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: June 14, 2016
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Shunsuke Hiyama, Ryohei Kobayashi, Yasuhide Takada, Kei Harada
  • Electromagnetic Valve and Fixing Structure
    Publication number: 20160084401
    Abstract: An electromagnetic valve has: a coil; a casing encircling the coil and having a cylinder portion and nail portions; a movable core moving axially in the wound coil; a fixed core set at an opening end of the casing; a valve body fixed to the opening end of the casing together with the fixed core by bending inwards the nail portions; and a spool valve body moving axially in the valve body. The nail portion is provided with a wide width portion at a root side, a narrow width portion at a top side and a stepped portion between the wide width portion and the narrow width portion. The stepped portion is positioned at a substantially same position as an outer edge of one end portion of the valve body, or positioned at a cylinder portion side with respect to the one end portion outer edge of the valve body.
    Type: Application
    Filed: December 1, 2015
    Publication date: March 24, 2016
    Inventors: Shunsuke HIYAMA, Ryohei KOBAYASHI, Yasuhide TAKADA, Kei HARADA
  • Electromagnetic valve and fixing structure
    Patent number: 9228672
    Abstract: An electromagnetic valve has: a coil; a casing encircling the coil and having a cylinder portion and nail portions; a movable core moving axially in the wound coil; a fixed core set at an opening end of the casing; a valve body fixed to the opening end of the casing together with the fixed core by bending inwards the nail portions; and a spool valve body moving axially in the valve body. The nail portion is provided with a wide width portion at a root side, a narrow width portion at a top side and a stepped portion between the wide width portion and the narrow width portion. The stepped portion is positioned at a substantially same position as an outer edge of one end portion of the valve body, or positioned at a cylinder portion side with respect to the one end portion outer edge of the valve body.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: January 5, 2016
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Shunsuke Hiyama, Ryohei Kobayashi, Yasuhide Takada, Kei Harada