Patents by Inventor Takefumi Murai

Takefumi Murai 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).

  • Aqueous adhesive agent composition
    Patent number: 9359536
    Abstract: Disclosed is an aqueous adhesive agent composition which has no concern about environmental safety and can be used as an adhesive agent composition for automobile interior materials. The aqueous adhesive agent composition comprises (A) an acid-modified polyolefin resin and (B) a core-shell-type curing agent.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: June 7, 2016
    Assignee: Sunstar Giken Kabushiki Kaisha
    Inventors: Takefumi Murai, Yoshimi Shibata
  • Adhering method using electrostatic powder adhesive, and powder adhesive to be used in adhering method
    Patent number: 8790755
    Abstract: Provided is an adhering method which comprises spray-coating an adherend with a powder adhesive and then using the adherend, thereby enabling the formation of an automobile interior part having good heat tolerance and high adhesion strength. The adhering method to be used for forming an automobile interior part involves a step for spray-coating an adherend (4) with a powder adhesive (6) with the use of an electrostatic powder spray gun (5). If necessary, the adhering method may further involve a step for inciting the powder adhesive, which has been spray-coated on the adherend, by heating with an infrared heater.
    Type: Grant
    Filed: November 26, 2010
    Date of Patent: July 29, 2014
    Assignee: Sunstar Engineering Inc.
    Inventors: Takefumi Murai, Yoshimi Shibata
  • ADHERING METHOD USING ELECTROSTATIC POWDER ADHESIVE, AND POWDER ADHESIVE TO BE USED IN ADHERING METHOD
    Publication number: 20120231176
    Abstract: Provided is an adhering method which comprises spray-coating an adherend with a powder adhesive and then using the adherend, thereby enabling the formation of an automobile interior part having good heat tolerance and high adhesion strength. The adhering method to be used for forming an automobile interior part involves a step for spray-coating an adherend (4) with a powder adhesive (6) with the use of an electrostatic powder spray gun (5). If necessary, the adhering method may further involve a step for inciting the powder adhesive, which has been spray-coated on the adherend, by heating with an infrared heater.
    Type: Application
    Filed: November 26, 2010
    Publication date: September 13, 2012
    Applicant: SUNSTAR ENGINEERING INC.
    Inventors: Takefumi Murai, Yoshimi Shibata
  • AQUEOUS ADHESIVE AGENT COMPOSITION
    Publication number: 20120095130
    Abstract: Disclosed is an aqueous adhesive agent composition which has no concern about environmental safety and can be used as an adhesive agent composition for automobile interior materials. The aqueous adhesive agent composition comprises (A) an acid-modified polyolefin resin and (B) a core-shell-type curing agent.
    Type: Application
    Filed: June 16, 2010
    Publication date: April 19, 2012
    Inventors: Takefumi Murai, Yoshimi Shibata