Patents by Inventor Shuichi Matakawa

Shuichi Matakawa 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).

  • Publication number: 20210324249
    Abstract: An object of the present invention is to provide a composite material including an epoxide resin, having an improved strength. The object can be solved by a curable epoxide composition comprising an epoxide compound; a carbon fiber; a curing agent; and phosphite ester or phosphate ester. According to the present invention, a strength of the curable epoxide composition comprising a carbon fiber can be improved.
    Type: Application
    Filed: July 1, 2021
    Publication date: October 21, 2021
    Inventors: Akinobu SAITO, Shuichi WATANABE, Takakuni KAWANO, Shuichi MATAKAWA
  • Patent number: 11084960
    Abstract: An object of the present invention is to provide a composite material including an epoxide resin, having an improved strength. The object can be solved by a curable epoxide composition comprising an epoxide compound; a carbon fiber; a curing agent; and phosphite ester or phosphate ester. According to the present invention, a strength of the curable epoxide composition comprising a carbon fiber can be improved.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: August 10, 2021
    Assignee: T&K TOKA CO., LTD.
    Inventors: Akinobu Saito, Shuichi Watanabe, Takakuni Kawano, Shuichi Matakawa
  • Publication number: 20200231850
    Abstract: An object of the present invention is to provide a composite material including an epoxide resin, having an improved strength. The object can be solved by a curable epoxide composition comprising an epoxide compound; a carbon fiber; a curing agent; and phosphite ester or phosphate ester. According to the present invention, a strength of the curable epoxide composition comprising a carbon fiber can be improved.
    Type: Application
    Filed: May 17, 2019
    Publication date: July 23, 2020
    Inventors: Akinobu SAITO, Shuichi WATANABE, Takakuni KAWANO, Shuichi MATAKAWA
  • Patent number: 10105364
    Abstract: Provided is an ink composition less likely to cause offset and sticking. Provided is a printed matter and a printing method using such ink composition. The ink composition includes a (meth) acrylic resin and a drying oil, the (meth)acrylic resin: containing at least 40% by weight or more of a structural unit derived from (meth)acryl monomer having a straight-chain alkyl group having 4 or more carbon atoms, branched alkyl group having 4 or more carbon atoms, or cyclic alkyl group having 4 or more carbon atoms (1); having a glass transition temperature of 63° C. to 180° C. (2); and having a weight-average molecular weight of 1000 to 80,000 (3).
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: October 23, 2018
    Assignee: T&K TOKA CO., LTD.
    Inventors: Shuichi Matakawa, Shuichi Watanabe
  • Patent number: 10071096
    Abstract: Provided is an ink composition less likely to cause offset and sticking. Provided is a printed matter and a printing method using such ink composition. The ink composition includes a (meth) acrylic resin and a drying oil, the (meth)acrylic resin: containing at least 40% by weight or more of a structural unit derived from (meth)acryl monomer having a straight-chain alkyl group having 4 or more carbon atoms, branched alkyl group having 4 or more carbon atoms, or cyclic alkyl group having 4 or more carbon atoms (1); having a glass transition temperature of 63° C. to 180° C. (2); and having a weight-average molecular weight of 1000 to 80,000 (3).
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: September 11, 2018
    Assignee: T&K TOKA CO., LTD.
    Inventors: Shuichi Matakawa, Shuichi Watanabe
  • Publication number: 20170368064
    Abstract: Provided is an ink composition less likely to cause offset and sticking. Provided is a printed matter and a printing method using such ink composition. The ink composition includes a (meth) acrylic resin and a drying oil, the (meth)acrylic resin: containing at least 40% by weight or more of a structural unit derived from (meth)acryl monomer having a straight-chain alkyl group having 4 or more carbon atoms, branched alkyl group having 4 or more carbon atoms, or cyclic alkyl group having 4 or more carbon atoms (1); having a glass transition temperature of 63° C. to 180° C. (2); and having a weight-average molecular weight of 1000 to 80,000 (3).
    Type: Application
    Filed: February 20, 2015
    Publication date: December 28, 2017
    Applicant: T&K Toka Co., Ltd.
    Inventors: Shuichi Matakawa, Shuichi Watanabe
  • Patent number: 6503313
    Abstract: A graft copolymer of: an organic solvent soluble fluoropolymer having at least one urethane linkage and containing at least one radically polymerizable bond; at least one polysiloxane having a radically polymerizable terminal group; at least one monomer having a radically polymerizable double bond and a fluoroalkyl group per monomer molecule; and at least one different radically polymerizable monomer. Compositions containing this graft copolymer composition are suitable for use as a coating having water repellent, oil repellent and stain resistant properties over a long period of time.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: January 7, 2003
    Assignee: Fuji Kasei Kogyo Co., Ltd.
    Inventors: Shuichi Matakawa, Toshihiko Abe
  • Publication number: 20010002416
    Abstract: A graft copolymer of: an organic solvent soluble fluoropolymer having at least one urethane linkage and containing at least one radically polymerizable bond; at least one polysiloxane having a radically polymerizable terminal group; at least one monomer having a radically polymerizable double bond and a fluoroalkyl group per monomer molecule; and at least one different radically polymerizable monomer. Compositions containing this graft copolymer composition are suitable for use as a coating having water repellent, oil repellent and stain resistant properties over a long period of time.
    Type: Application
    Filed: November 29, 2000
    Publication date: May 31, 2001
    Inventors: Shuichi Matakawa, Toshihiko Abe