Patents by Inventor Akihito NIBE

Akihito NIBE 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).

  • Directional control valve
    Patent number: 11841091
    Abstract: A directional control valve includes: a housing having a cylindrical spool hole communicating with an inlet port letting a fluid from an external supply source at a predetermined pressure and an outlet port flowing the fluid to a working cylinder; a spool movable in the spool hole axially and changing an amount of flow of the fluid; a first solenoid driving section having a first needle coupled to or integral with a first end portion of the spool and driving the spool; and a second solenoid driving section having a second needle coupled to or integral with a second end portion of the spool and driving the spool, the directional control valve including a pressure equalization circuit equally applying a pressure to the end portions.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: December 12, 2023
    Assignees: NISHINA INDUSTRIAL CO., LTD., KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Ryo Yazawa, Shigeto Nakajima, Akihito Nibe, Koichi Kinoshita
  • DIRECTIONAL CONTROL VALVE
    Publication number: 20230003313
    Abstract: A directional control valve includes: a housing having a cylindrical spool hole communicating with an inlet port letting a fluid from an external supply source at a predetermined pressure and an outlet port flowing the fluid to a working cylinder; a spool movable in the spool hole axially and changing an amount of flow of the fluid; a first solenoid driving section having a first needle coupled to or integral with a first end portion of the spool and driving the spool; and a second solenoid driving section having a second needle coupled to or integral with a second end portion of the spool and driving the spool, the directional control valve including a pressure equalization circuit equally applying a pressure to the end portions.
    Type: Application
    Filed: June 28, 2022
    Publication date: January 5, 2023
    Applicants: NISHINA INDUSTRIAL CO., LTD., KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Ryo Yazawa, Shigeto Nakajima, Akihito Nibe, Koichi Kinoshita
  • Industrial vehicle
    Patent number: 10247207
    Abstract: When an engine stall is likely to occur, the pressure of the back pressure chamber of a relief pressure valve is released to adjust the relief pressure of the relief pressure valve. This actuates a pressure compensating circuit to release the pressure in a control circuit to an oil tank. Thus, a rapid increase of the pressure due to a cargo handling operation is restricted, and an engine stall due to insufficient torque of the engine is avoided.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: April 2, 2019
    Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, NISHINA INDUSTRIAL CO., LTD.
    Inventors: Tetsuya Goto, Kenichi Hagino, Yasushi Kuwano, Akihito Nibe, Shigeto Nakajima, Satoshi Takano
  • INDUSTRIAL VEHICLE
    Publication number: 20170130742
    Abstract: When an engine stall is likely to occur, the pressure of the back pressure chamber of a relief pressure valve is released to adjust the relief pressure of the relief pressure valve. This actuates a pressure compensating circuit to release the pressure in a control circuit to an oil tank. Thus, a rapid increase of the pressure due to a cargo handling operation is restricted, and an engine stall due to insufficient torque of the engine is avoided.
    Type: Application
    Filed: November 1, 2016
    Publication date: May 11, 2017
    Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, NISHINA INDUSTRIAL CO., LTD.
    Inventors: Tetsuya GOTO, Kenichi HAGINO, Yasushi KUWANO, Akihito NIBE, Shigeto NAKAJIMA, Satoshi TAKANO