Patents by Inventor Kousei IWAKAWA

Kousei IWAKAWA 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).

  • Organic silicon compound, surface treatment agent containing same, resin composition containing same, and gel or cured product of same
    Patent number: 10604658
    Abstract: An organic silicon compound is disclosed which is represented by a formula: (R13SiO)3SiR2—[SiR32O]y[SiR32]w—R4—R5, wherein each of R1 and R3 is a group independently selected from the group consisting of alkyl groups, alkenyl groups, aryl groups, aralkyl groups and alkoxy groups having 1 to 20 carbon atoms, R2 is a divalent hydrocarbon group or an oxygen atom, R4 is a divalent hydrocarbon group, or a direct bond to a silicon (Si) atom, R5 is a monovalent group represented by (R6O)qR7(3-q)Si or a monovalent hydrocarbon group having 1 to 20 carbon atoms, and each of R6 and R7 is a group independently selected from the group consisting of alkyl groups, alkenyl groups, aryl groups, aralkyl groups and alkoxy groups having 1 to 20 carbon atoms, and q is an integer between 1 and 3, y is an integer between 0 and 200, and w is 0 or 1.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: March 31, 2020
    Assignee: Dow Toray Co., Ltd.
    Inventors: Haruhiko Furukawa, Makoto Iwai, Kousei Iwakawa, Eiji Kitaura, Kazuhiro Nishijima, Tadashi Okawa
  • NOVEL ORGANIC SILICON COMPOUND, SURFACE TREATMENT AGENT CONTAINING SAME, RESIN COMPOSITION CONTAINING SAME, AND GEL OR CURED PRODUCT OF SAME
    Publication number: 20180230172
    Abstract: An organic silicon compound is disclosed which is represented by a formula : (R13SiO)3SiR2-[SiR32O]y[SiR32]w-R4-R5, wherein each of R1 and R3 is a group independently selected from the group consisting of alkyl groups, alkenyl groups, aryl groups, aralkyl groups and alkoxy groups having 1 to 20 carbon atoms, R2 is a divalent hydrocarbon group or an oxygen atom, R4 is a divalent hydrocarbon group, or a direct bond to a silicon (Si) atom, R5 is a monovalent group represented by (R6O)qR7(3-q)Si or a monovalent hydrocarbon group having 1 to 20 carbon atoms, and each of R6 and R7 is a group independently selected from the group consisting of alkyl groups, alkenyl groups, aryl groups, aralkyl groups and alkoxy groups having 1 to 20 carbon atoms, and q is an integer between 1 and 3, y is an integer between 0 and 200, and w is 0 or 1.
    Type: Application
    Filed: August 11, 2014
    Publication date: August 16, 2018
    Inventors: Haruhiko FURUKAWA, Makoto IWAI, Kousei IWAKAWA, Eiji KITAURA, Kazuhiro NISHIJIMA, Tadashi OKAWA