Patents by Inventor Shiro Suo

Shiro Suo 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).

  • Publication number: 20170321696
    Abstract: A variable displacement vane pump includes: a restrictor configured to impart resistance to flow of working fluid discharged from the pump chambers; a control valve configured to introduce the working fluid which is discharged from the pump chambers to the first fluid pressure chamber as a differential pressure between upstream and downstream of the restrictor is increased, the control valve being configured to discharge the working fluid in the first fluid pressure chamber as the differential pressure between upstream and downstream of the restrictor is reduced; a suction passage configured to guide the working fluid to be sucked into the pump chambers, the suction passage being configured to always communicate with the second fluid pressure chamber; and a guiding passage configured to allow communication between the control valve and the second fluid pressure chamber, the guiding passage being configured to guide the working fluid, which is discharged from the first fluid pressure chamber to the control val
    Type: Application
    Filed: November 24, 2015
    Publication date: November 9, 2017
    Applicant: KYB Corporation
    Inventors: Ryouichi NAGASAKA, Shiro SUO
  • Patent number: 5735365
    Abstract: A rack and pinion are housed in a gear box, a valve sleeve that is joined to the pinion being housed in a valve housing such that the sleeve is free to rotate. A mechanism is provided that joins the gear box and valve housing in any desired relative rotation position. As the gear box and valve housing are formed independently, they may be formed by different manufacturing methods, and replacement of either of them is also easy. Further, an oil pressure port provided at a fixed position in the valve housing may be disposed at any desired rotation angle by selecting the relative rotation position of the gear box and valve housing.
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: April 7, 1998
    Assignee: Kayaba Kogyo Kabushiki Kaisha
    Inventors: Masayuki Sako, Takuro Hirano, Shiro Suo