Patents by Inventor Yoshikatsu GOTO

Yoshikatsu GOTO 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).

  • Patent number: 10816104
    Abstract: A solenoid valve includes a solenoid portion that moves a pin to one axial side and a nozzle portion including a valve body connected to one axial side of the pin. The valve body is driven by the pin and moves to one axial side to close a valve hole and urged by a spring and moves to the other axial side to open the valve hole. The spring is disposed in an annular space between a radial outer surface of a second valve body portion and a radial inner surface of a valve chamber, one axial side of the spring is in contact with a bottom surface of the valve chamber, the other axial side is in contact with a first valve body portion extending radially from an outer surface of the second valve body portion, and the spring urges the valve body toward the other axial side.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: October 27, 2020
    Assignee: NIDEC TOSOK CORPORATION
    Inventors: Dongming Chen, Tomohiko Nakanishi, Koichi Ishikawa, Yoshikatsu Goto
  • Patent number: 10767780
    Abstract: A solenoid valve includes a solenoid portion that moves a pin to one axial side and a nozzle portion including a valve body connected to one axial side of the pin, and a nozzle body that houses the valve body. The nozzle body includes a valve chamber that has a cavity recessed toward one axial side with an opening on the other axial side and that houses the valve body on one axial side of the cavity, and a solenoid housing portion that houses the solenoid portion on the other axial side of the valve chamber of the cavity. The valve body is driven by the pin and moves to one axial side to close a valve hole and is urged by a spring and moves to the other axial side to open the valve hole.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: September 8, 2020
    Assignee: NIDEC TOSOK CORPORATION
    Inventors: Dongming Chen, Tomohiko Nakanishi, Koichi Ishikawa, Yoshikatsu Goto
  • Publication number: 20190085996
    Abstract: A solenoid valve includes a solenoid portion that moves a pin to one axial side and a nozzle portion including a valve body connected to one axial side of the pin, and a nozzle body that houses the valve body. The nozzle body includes a valve chamber that has a cavity recessed toward one axial side with an opening on the other axial side and that houses the valve body on one axial side of the cavity, and a solenoid housing portion that houses the solenoid portion on the other axial side of the valve chamber of the cavity. The valve body is driven by the pin and moves to one axial side to close a valve hole and is urged by a spring and moves to the other axial side to open the valve hole.
    Type: Application
    Filed: September 20, 2018
    Publication date: March 21, 2019
    Applicant: NIDEC TOSOK CORPORATION
    Inventors: Dongming CHEN, Tomohiko NAKANISHI, Koichi ISHIKAWA, Yoshikatsu GOTO
  • Publication number: 20190085999
    Abstract: A solenoid valve includes a solenoid portion that moves a pin to one axial side and a nozzle portion including a valve body connected to one axial side of the pin. The valve body is driven by the pin and moves to one axial side to close a valve hole and urged by a spring and moves to the other axial side to open the valve hole. The spring is disposed in an annular space between a radial outer surface of a second valve body portion and a radial inner surface of a valve chamber, one axial side of the spring is in contact with a bottom surface of the valve chamber, the other axial side is in contact with a first valve body portion extending radially from an outer surface of the second valve body portion, and the spring urges the valve body toward the other axial side.
    Type: Application
    Filed: September 20, 2018
    Publication date: March 21, 2019
    Applicant: NIDEC TOSOK CORPORATION
    Inventors: Dongming CHEN, Tomohiko NAKANISHI, Koichi ISHIKAWA, Yoshikatsu GOTO