Patents by Inventor Yasuyuki Yoshimoto

Yasuyuki Yoshimoto 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).

  • Patent number: 10711170
    Abstract: The present invention provides a two-component type urethane-based adhesive composition for an automobile, which has a good productivity because of high curing rate, which there is not much change between physical properties of a cured product formed from a first component alone and those of a cured product formed from a mixture of first and second components, and which it is possible to satisfy required performances for an automotive adhesive without the second component.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: July 14, 2020
    Assignee: Sunstar Engineering Inc.
    Inventors: Yasuyuki Yoshimoto, Tomoharu Usa
  • Publication number: 20190016934
    Abstract: The present invention provides a two-component type urethane-based adhesive composition for an automobile, which has a good productivity because of high curing rate, which there is not much change between physical properties of a cured product formed from a first component alone and those of a cured product formed from a mixture of first and second components, and which it is possible to satisfy required performances for an automotive adhesive without the second component.
    Type: Application
    Filed: January 7, 2016
    Publication date: January 17, 2019
    Applicant: Sunstar Engineering Inc.
    Inventors: Yasuyuki YOSHIMOTO, Tomoharu USA
  • Patent number: 7338980
    Abstract: A piston pump has a piston and cylinder. A gas is supplied into the cylinder during and/or after a suction stroke of the piston pump, and a high-viscosity material is supplied into the cylinder after the suction stroke. A discharge stroke of the piston pump is effected after completion of supply of the high-viscosity material to thereby discharge the gas and high-viscosity material into a pipe. Use is made of piston pumps 45A and 45B, each including a cylinder and a piston which reciprocally moves within the cylinder to effect the suction stroke and discharge stroke, and a membrane gas generator 10 to which compressed air is supplied to generate a gas. A low-pressure gas generated by the membrane gas generator 10 is supplied into each piston pump and the high-viscosity material is introduced into the gas.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: March 4, 2008
    Assignees: Sunstar Giken Kabushiki Kaisha, Sunstar Suisse SA
    Inventors: Shinji Okuda, Masaharu Takada, Yasuyuki Yoshimoto
  • Publication number: 20070135574
    Abstract: The present invention provides a sealant for automobile doors, which is used to bond an inside screen to the inner panel of an automobile door and which is excellent in hot creep resistance and shear adhesive strength at high temperatures, particularly in consideration of the application thereof in summer. The sealant for automobile doors of the present invention comprises partially crosslinked NBR and/or SBR, a plasticizer and a filler.
    Type: Application
    Filed: June 18, 2004
    Publication date: June 14, 2007
    Inventors: Hirotaka Minami, Yoshinori Mayama, Yasuyuki Yoshimoto, Yoshihiro Nakata, Kiyoshi Hasegawa
  • Publication number: 20050029304
    Abstract: A piston pump has a piston and cylinder. A gas is supplied into the cylinder during and/or after a suction stroke of the piston pump, and a high-viscosity material is supplied into the cylinder after the suction stroke. A discharge stroke of the piston pump is effected after completion of supply of the high-viscosity material to thereby discharge the gas and high-viscosity material into a pipe. Use is made of piston pumps 45A and 45B, each including a cylinder and a piston which reciprocally moves within the cylinder to effect the suction stroke and discharge stroke, and a membrane gas generator 10 to which compressed air is supplied to generate a gas. A low-pressure gas generated by the membrane gas generator 10 is supplied into each piston pump and the high-viscosity material is introduced into the gas.
    Type: Application
    Filed: September 16, 2004
    Publication date: February 10, 2005
    Inventors: Shinji Okuda, Masaharu Takada, Yasuyuki Yoshimoto
  • Patent number: 6538040
    Abstract: A piston pump has a piston and cylinder, the piston being adapted to reciprocally move within the cylinder to effect a suction stroke and discharge stroke. A gas is supplied into the cylinder during and/or after the suction stroke of the piston pump, and a high-viscosity material is supplied into the cylinder after the suction stroke. A discharge stroke of the piston pump is effected after completion of supply of the high-viscosity material in the cylinder to thereby discharge the gas and high-viscosity material into a pipe. A first step introduces a high-viscosity material into a gas, a second step pressurizes, by a pump, a combination of the high-viscosity material and the gas transferred from the first step, a third step passes the combination in a pressurized state through a dispersing pipe to disperse the gas into the high-viscosity material to produce a mixture, and a fourth step discharges the mixture to effect foaming.
    Type: Grant
    Filed: November 4, 1999
    Date of Patent: March 25, 2003
    Assignees: Sunstar Giken Kabushiki Kaisha, Uni-Sunstar B.V.
    Inventors: Shinji Okuda, Masaharu Takada, Yasuyuki Yoshimoto
  • Publication number: 20020132859
    Abstract: A piston pump has a piston and cylinder, the piston being adapted to reciprocally move within the cylinder to effect a suction stroke and discharge stroke. A gas is supplied into the cylinder during and/or after the suction stroke of the piston pump, and a high-viscosity material is supplied into the cylinder after the suction stroke. A discharge stroke of the piston pump is effected after completion of supply of the high-viscosity material in the cylinder to thereby discharge the gas and high-viscosity material into a pipe. A first step introduces a high-viscosity material into a gas, a second step pressurizes, by a pump, a combination of the high-viscosity material and the gas transferred from the first step, a third step passes the combination in a pressurized state through a dispersing pipe to disperse the gas into the high-viscosity material to produce a mixture, and a fourth step discharges the mixture to effect foaming.
    Type: Application
    Filed: May 9, 2002
    Publication date: September 19, 2002
    Inventors: Shinji Okuda, Masaharu Takada, Yasuyuki Yoshimoto
  • Patent number: 5984280
    Abstract: Low-pressure gas is mixed in a viscous material. The flow of the gas can be easily controlled so that the dispersion of the mixing ratio of the viscous material to the gas may be confined within a small tolerance and fine bubbles may be uniformly distributed in the interior of the viscous material. The gas is mixed in the viscous material by a first pump, from which a mixture of the gas and the viscous material is delivered. Pressure is applied to the mixture by a second pump. The gas is distributed in the interior of the viscous material by allowing the mixture under pressure to pass through a conduit assembly. The viscous material is foamed when the mixture is discharged from a nozzle through a discharge pipe.
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: November 16, 1999
    Assignees: Sunstar Engineering, Inc., Uni-Sunstar B.V.
    Inventors: Shinji Okuda, Yasuyuki Yoshimoto, Masaharu Takada
  • Patent number: 5874031
    Abstract: The invention resides in mixing low-pressure gas in a viscous material. The flow of the gas can be easily controlled so that the dispersion of the mixing ratio of the viscous material to the gas may be confined within a small tolerance and fine bubbles may be uniformly distributed in the interior of the viscous material.The gas is mixed in the viscous material by means of a first pump 42, from which a mixture of the gas and the viscous material is delivered. Pressure is applied to the mixture by means of a second pump 51. The gas is distributed in the interior of the viscous material by allowing the mixture under pressure to pass through a conduit assembly 61. The viscous material is foamed when the mixture is discharged from a nozzle 73 through a discharge pipe 71.
    Type: Grant
    Filed: November 29, 1996
    Date of Patent: February 23, 1999
    Assignees: Sunstar Engineering Inc., Uni-Sunstar B.V.
    Inventors: Shinji Okuda, Yasuyuki Yoshimoto, Masaharu Takada