Patents by Inventor Masatoshi Fujise

Masatoshi Fujise 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).

  • Solenoid-driven flow control valve
    Patent number: 8870152
    Abstract: A working fluid flow rate flowing from a second port (13) to a first port (12) is controlled using a solenoid (S). A pilot pin (60) of a pilot valve (V3) driven by the solenoid (S) regulates an auxiliary pilot pressure. An opening of an auxiliary valve (V2) is varied according to the auxiliary pilot pressure, whereby the auxiliary valve (V2) causes working oil to flow out to the first port (12) from the second port (13) and varies a main pilot pressure according to the working oil flow rate. An opening of a main valve (V1) is varied according to the main pilot pressure, whereby the main valve (V1) causes the working oil to flow out to the first port (12) from the second port (13). Precise flow control at a low flow rate and responsive flow control at a high flow rate are thereby realized.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: October 28, 2014
    Assignee: Kayaba Industry Co., Ltd.
    Inventors: Kiyokazu Nagata, Keigo Yasuda, Masatoshi Fujise
  • SOLENOID-DRIVEN FLOW CONTROL VALVE
    Publication number: 20100294380
    Abstract: A working fluid flow rate flowing from a second port (13) to a first port (12) is controlled using a solenoid (S). A pilot pin (60) of a pilot valve (V3) driven by the solenoid (S) regulates an auxiliary pilot pressure. An opening of an auxiliary valve (V2) is varied according to the auxiliary pilot pressure, whereby the auxiliary valve (V2) causes working oil to flow out to the first port (12) from the second port (13) and varies a main pilot pressure according to the working oil flow rate. An opening of a main valve (V1) is varied according to the main pilot pressure, whereby the main valve (V1) causes the working oil to flow out to the first port (12) from the second port (13). Precise flow control at a low flow rate and responsive flow control at a high flow rate are thereby realized.
    Type: Application
    Filed: December 4, 2009
    Publication date: November 25, 2010
    Applicant: KAYABA INDUSTRY CO., LTD World Trade Center Bldg 4-1
    Inventors: Kiyokazu Nagata, Keigo Yasuda, Masatoshi Fujise