Patents by Inventor Masayuki NOJO

Masayuki NOJO 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).

  • Hydraulic control apparatus
    Patent number: 11268621
    Abstract: A hydraulic control apparatus includes an output-side oil passage into which oil from a first oil passage and oil from a second oil passage flow, and a pressure regulating check valve regulating a hydraulic pressure in the second oil passage. The pressure regulating check valve includes first and second elastic portions housed in a spool hole between a valve body and a bottom of the spool hole. A natural length of the second elastic portion is shorter than a distance between the valve body and the bottom when the valve body closes an inflow hole. The second elastic portion applies an elastic force to the valve body in a state in which the valve body opens the inflow hole.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: March 8, 2022
    Assignees: NIDEC TOSOK CORPORATION, SUBARU CORPORATION
    Inventors: Kunio Kimpara, Masayuki Nojo, Mamoru Murakami, Hiroaki Kosugi
  • HYDRAULIC CONTROL APPARATUS
    Publication number: 20200182363
    Abstract: A hydraulic control apparatus includes an output-side oil passage into which oil from a first oil passage and oil from a second oil passage flow, and a pressure regulating check valve regulating a hydraulic pressure in the second oil passage. The pressure regulating check valve includes first and second elastic portions housed in a spool hole between a valve body and a bottom of the spool hole. A natural length of the second elastic portion is shorter than a distance between the valve body and the bottom when the valve body closes an inflow hole. The second elastic portion applies an elastic force to the valve body in a state in which the valve body opens the inflow hole.
    Type: Application
    Filed: December 2, 2019
    Publication date: June 11, 2020
    Inventors: Kunio KIMPARA, Masayuki NOJO, Mamoru MURAKAMI, Hiroaki KOSUGI