Patents by Inventor Nobuyoshi Ohnishi

Nobuyoshi Ohnishi 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: 20240092975
    Abstract: A bisimide phenyl ester acid dianhydride represented by the following formula (2): where R3 and R4 each independently represents a hydrogen atom or an organic group having 1 to 10 carbon atoms; each m is independently an integer of 1 to 4; and each A independently represents an aromatic ring or an alicyclic ring.
    Type: Application
    Filed: November 8, 2023
    Publication date: March 21, 2024
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Tatsuya HIKICHI, Daiki WAKAHARA, Nobuyoshi OHNISHI
  • Publication number: 20230331917
    Abstract: A bisimide phenol compound represented by the following formula (1): wherein R1 and R2 each independently represent a hydrogen atom, a hydroxy group, or an organic group having 1 to 10 carbon atoms; two or more of both R1 and R2 are hydroxy groups; and each n is independently an integer of 1 to 5.
    Type: Application
    Filed: March 7, 2022
    Publication date: October 19, 2023
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Tatsuya HIKICHI, Daiki WAKAHARA, Nobuyoshi OHNISHI
  • Patent number: 10869390
    Abstract: A resin composition comprising a thermosetting resin, a functional group-modified copolymer, and an inorganic filler, wherein the functional group-modified copolymer has two or more alkyl (meth)acrylate units, or one or two or more alkyl (meth)acrylate units and an acrylonitrile unit, and at least a part of alkyl ester groups of the alkyl (meth)acrylate units and/or a cyano group of the acrylonitrile unit are/is modified with at least one selected from the group consisting of an epoxy group, a carboxyl group, and an amide group.
    Type: Grant
    Filed: July 4, 2016
    Date of Patent: December 15, 2020
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Nobuyoshi Ohnishi, Yoichi Takano, Tomo Chiba, Meguru Ito, Eisuke Shiga
  • Patent number: 10721817
    Abstract: The resin composition of the present invention comprises a prepolymer (P) and a thermosetting component, the prepolymer (P) being obtained by polymerizing an alkenyl-substituted nadimide (A), a maleimide compound (B), and an amino-modified silicone (C).
    Type: Grant
    Filed: July 4, 2016
    Date of Patent: July 21, 2020
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Yoichi Takano, Nobuyoshi Ohnishi, Hiroshi Takahashi, Eisuke Shiga
  • Patent number: 10703874
    Abstract: The resin composition of the present invention comprises an alkenyl-substituted nadimide (A), a maleimide compound (B), and an amino-modified silicone (C).
    Type: Grant
    Filed: July 4, 2016
    Date of Patent: July 7, 2020
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Yoichi Takano, Nobuyoshi Ohnishi, Katsuya Tomizawa, Naoki Kashima, Hiroshi Takahashi, Eisuke Shiga
  • Publication number: 20180199435
    Abstract: A resin composition comprising a thermosetting resin, a functional group-modified copolymer, and an inorganic filler, wherein the functional group-modified copolymer has two or more alkyl (meth)acrylate units, or one or two or more alkyl (meth)acrylate units and an acrylonitrile unit, and at least a part of alkyl ester groups of the alkyl (meth)acrylate units and/or a cyano group of the acrylonitrile unit are/is modified with at least one selected from the group consisting of an epoxy group, a carboxyl group, and an amide group.
    Type: Application
    Filed: July 4, 2016
    Publication date: July 12, 2018
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Nobuyoshi OHNISHI, Yoichi TAKANO, Tomo CHIBA, Meguru ITO, Eisuke SHIGA
  • Publication number: 20180179353
    Abstract: The resin composition of the present invention comprises an alkenyl-substituted nadimide (A), a maleimide compound (B), and an amino-modified silicone (C).
    Type: Application
    Filed: July 4, 2016
    Publication date: June 28, 2018
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Yoichi TAKANO, Nobuyoshi OHNISHI, Katsuya TOMIZAWA, Naoki KASHIMA, Hiroshi TAKAHASHI, Eisuke SHIGA
  • Publication number: 20180177047
    Abstract: The resin composition of the present invention comprises a prepolymer (P) and a thermosetting component, the prepolymer (P) being obtained by polymerizing an alkenyl-substituted nadimide (A), a maleimide compound (B), and an amino-modified silicone (C).
    Type: Application
    Filed: July 4, 2016
    Publication date: June 21, 2018
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Yoichi TAKANO, Nobuyoshi OHNISHI, Hiroshi TAKAHASHI, Eisuke SHIGA
  • Patent number: 9902851
    Abstract: A resin composition containing a cyclic epoxy-modified silicone compound (A) represented by formula (1), a cyanic acid ester compound (B) and/or a phenol resin (C) and an inorganic filler (D): wherein Ra each independently represent an organic group having an epoxy group; Rb each independently represent a substituted or unsubstituted monovalent hydrocarbon group; x represents an integer of 0 to 2; and y represents an integer of 1 to 6; and the siloxane unit marked with x and the siloxane unit marked with y are arranged mutually at random.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: February 27, 2018
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Hiroshi Takahashi, Tomo Chiba, Nobuyoshi Ohnishi, Katsuya Tomizawa, Keisuke Takada, Eisuke Shiga, Takaaki Ogashiwa
  • Publication number: 20150267047
    Abstract: A resin composition containing a cyclic epoxy-modified silicone compound (A) represented by formula (1), a cyanic acid ester compound (B) and/or a phenol resin (C) and an inorganic filler (D): wherein Ra each independently represent an organic group having an epoxy group; Rb each independently represent a substituted or unsubstituted monovalent hydrocarbon group; x represents an integer of 0 to 2; and y represents an integer of 1 to 6; and the siloxane unit marked with x and the siloxane unit marked with y are arranged mutually at random.
    Type: Application
    Filed: October 18, 2013
    Publication date: September 24, 2015
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Hiroshi Takahashi, Tomo Chiba, Nobuyoshi Ohnishi, Katsuya Tomizawa, Keisuke Takada, Eisuke Shiga, Takaaki Ogashiwa