Patents by Inventor Takeru Ohtsu

Takeru Ohtsu 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).

  • Curable resin composition, resin composition, resin sheet formed by using said curable resin composition and resin composition, and cured materials thereof
    Patent number: 9598573
    Abstract: A curable resin composition which comprising (A), (B) and (C) as follows: (A) 100 parts by mass of polyfunctional epoxy component which contains (A1) a trifunctional epoxy compound having three glycidyl groups in a molecule and (A2) a tetrafunctional epoxy compound having four glycidyl groups in a molecule, wherein (A1):(A2) is 10:90 to 90:10 in terms of mass; (B) 25 to 200 parts by mass of a cyanic acid ester compound having two or more of cyanato groups; and (C) 0.5 to 20 parts by mass of an imidazole compound as a curing agent.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: March 21, 2017
    Assignee: Adeka Corporation
    Inventors: Yuichiro Deguchi, Takahiro Mori, Yoshihiro Fukuda, Takeru Ohtsu
  • CURABLE RESIN COMPOSITION, RESIN COMPOSITION, RESIN SHEET FORMED BY USING SAID CURABLE RESIN COMPOSITION AND RESIN COMPOSITION, AND CURED MATERIALS THEREOF
    Publication number: 20150175799
    Abstract: A curable resin composition which comprising (A), (B) and (C) as follows: (A) 100 parts by mass of polyfunctional epoxy component which contains (A1) a trifunctional epoxy compound having three glycidyl groups in a molecule and (A2) a tetrafunctional epoxy compound having four glycidyl groups in a molecule, wherein (A1):(A2) is 10:90 to 90:10 in terms of mass; (B) 25 to 200 parts by mass of a cyanic acid ester compound having two or more of cyanato groups; and (C) 0.5 to 20 parts by mass of an imidazole compound as a curing agent.
    Type: Application
    Filed: June 7, 2013
    Publication date: June 25, 2015
    Applicant: ADEKA CORPORATION
    Inventors: Yuichiro Deguchi, Takahiro Mori, Yoshihiro Fukuda, Takeru Ohtsu