Patents by Inventor Nobuhiro Akashi

Nobuhiro Akashi 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).

  • Flow control valve
    Patent number: 7730875
    Abstract: A spool valve is movably provided in a valve sliding space of a valve casing. The spool valve has a through-hole formed in the inside thereof, and a communication port formed in the spool valve is operatively communicated with a fluid port for controlling an opening area of the fluid port by moving within the valve sliding space. Multiple circular oil grooves are formed at an outer peripheral surface of the spool valve, into which high pressure fluid is supplied so that the spool valve can be smoothly moved in the valve sliding space.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: June 8, 2010
    Assignee: Denso Corporation
    Inventors: Katsumi Mori, Hiroto Fujii, Nobuhiro Akashi
  • Flow control valve
    Publication number: 20060065870
    Abstract: A spool valve is movably provided in a valve sliding space of a valve casing. The spool valve has a through-hole formed in the inside thereof, and a communication port formed in the spool valve is operatively communicated with a fluid port for controlling an opening area of the fluid port by moving within the valve sliding space. Multiple circular oil grooves are formed at an outer peripheral surface of the spool valve, into which high pressure fluid is supplied so that the spool valve can be smoothly moved in the valve sliding space.
    Type: Application
    Filed: September 26, 2005
    Publication date: March 30, 2006
    Applicant: Denso Corporation
    Inventors: Katsumi Mori, Hiroto Fujii, Nobuhiro Akashi