Patents by Inventor Shunichiro Hagihara

Shunichiro Hagihara 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).

  • Receiving opening of joint for working fluid and valve with the receiving opening
    Patent number: 8231101
    Abstract: The present invention relates to a duct connector for working fluid, that is durable and corrosion resistant, and a valve with the duct connector. The duct connector has a head portion with an internal fitting portion that fluidly communicates with the inside of a cylinder housing of the valve. It is affixed to the housing in such a manner that the head portion protrudes from the outer surface of the housing with the fitting portion being positioned outside the outer surface of the housing. Duct connectors may be formed by insert molding using a resin with a tensile elongation ratio of 50%-400% and tensile strength of 50 Mpa -200 MPa.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: July 31, 2012
    Assignee: Asahi Organic Chemicals Industry Co., Ltd.
    Inventor: Shunichiro Hagihara
  • Receiving Opening Of Joint For Working Fluid And Valve With The Receiving Opening
    Publication number: 20090166574
    Abstract: The present invention relates to a duct connector for working fluid, that is durable and corrosion resistant, and a valve with the duct connector. The duct connector has a head portion with an internal fitting portion that fluidly communicates with the inside of a cylinder housing of the valve. It is affixed to the housing in such a manner that the head portion protrudes from the outer surface of the housing with the fitting portion being positioned outside the outer surface of the housing. Duct connectors may be formed by insert molding using a resin with a tensile elongation ratio of 50%-400% and tensile strength of 50 MPa-200 MPa.
    Type: Application
    Filed: August 27, 2004
    Publication date: July 2, 2009
    Inventor: Shunichiro Hagihara
  • Flow control valve
    Patent number: 7108241
    Abstract: A flow control valve includes a main body 1, bonnet 2, spring receiving portion 3, piston 4, spring 24, first diaphragm 27, first valve member 5, second valve member 6 and base plate 7, wherein an opening area of a hydraulic control portion composed of a valve element of the second valve member and a valve seat of the main body is changed according to a motion of the piston.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: September 19, 2006
    Assignee: Asahi Organic Chemicals Industry Co., Ltd.
    Inventors: Kenro Yoshino, Shunichiro Hagihara
  • Flow control valve
    Publication number: 20050285064
    Abstract: A flow control valve includes a main body 1, bonnet 2, spring receiving portion 3, piston 4, spring 24, first diaphragm 27, first valve member 5, second valve member 6 and base plate 7, wherein an opening area of a hydraulic control portion composed of a valve element of the second valve member and a valve seat of the main body is changed according to a motion of the piston.
    Type: Application
    Filed: July 3, 2003
    Publication date: December 29, 2005
    Applicant: Asahi Organic Chemicals Industry Co., Ltd.
    Inventors: Kenro Yoshino, Shunichiro Hagihara