Patents by Inventor Shigeyuki Yoshizawa

Shigeyuki Yoshizawa 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: 20180022968
    Abstract: Provided is an anisotropic conductive film that allows conductive particles to be sufficiently captured even by connecting terminals disposed at a fine pitch and can suppress a short circuit, and in particular, that can suppress variation of conduction resistance of a connection portion even when partial contact is caused by a thermal pressing tool during anisotropic conductive connection. In an anisotropic conductive film 1A, an insulating adhesive layer 3 contains conductive particles 2. The conductive particles 2 have an aspect ratio of 1.2 or more and are dispersed without being in contact with each other as viewed in a plan view, and an angle formed between a film surface S of the anisotropic conductive film 1A and a major axis direction of each of the conductive particles 2 is less than 40°. The anisotropic conductive film 1A preferably contains columnar conductive glass particles as the conductive particles 2.
    Type: Application
    Filed: March 18, 2016
    Publication date: January 25, 2018
    Applicant: DEXERIALS CORPORATION
    Inventors: Shigeyuki YOSHIZAWA, Masao SAITO, Yasushi AKUTSU
  • Patent number: 9515042
    Abstract: An anisotropic conductive film is obtained by dispersing conductive particles in an insulating adhesive composition including a (meth)acrylate-based monomer composition, a radical polymerization initiator, and a film-forming resin. The (meth)acrylate-based monomer composition includes a (meth)acrylate-based monomer which has a cyclic ester residue or a cyclic amide residue represented by the formula (1): R1 is a hydrogen atom or a methyl group; R2 is an alkylene group or an alkyloxy group; R3 is an alkyl group, an alkylene group, an aryl group, or a halogen atom; n is an integer of 0 to 3; R4 is absent or an alkylene, dotted lines on both sides of R4 jointly represent a single bond; X1 is absent, or an oxygen atom or a carbon atom; and X2 is an oxygen atom, a nitrogen atom, or a sulfur atom.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: December 6, 2016
    Assignee: DEXERIALS CORPORATION
    Inventors: Yasushi Akutsu, Kouichi Sato, Shigeyuki Yoshizawa
  • Publication number: 20120228026
    Abstract: An anisotropic conductive film is obtained by dispersing conductive particles in an insulating adhesive composition including a (meth)acrylate-based monomer composition, a radical polymerization initiator, and a film-forming resin. The (meth)acrylate-based monomer composition includes a (meth)acrylate-based monomer which has a cyclic ester residue or a cyclic amide residue represented by the formula (1): R1 is a hydrogen atom or a methyl group; R2 is an alkylene group or an alkyloxy group; R3 is an alkyl group, an alkylene group, an aryl group, or a halogen atom; n is an integer of 0 to 3; R4 is absent or an alkylene, dotted lines on both sides of R4 jointly represent a single bond; X1 is absent, or an oxygen atom or a carbon atom; and X2 is an oxygen atom, a nitrogen atom, or a sulfur atom.
    Type: Application
    Filed: July 19, 2011
    Publication date: September 13, 2012
    Applicant: SONY CHEMICAL & INFORMATION DEVICE CORPORATION
    Inventors: Yasushi Akutsu, Kouichi Sato, Shigeyuki Yoshizawa
  • Patent number: 5707942
    Abstract: A lubricating oil composition comprising a lubricating base oil, an amine salt of molybdic acid, and a molybdenmn dithiocarbamate and/or a molybdenum dithiophosphate, wherein the content of molybdenum derived from the amine salt of molybdic acid is 200 ppm by weight or more, the content of molybdenum derived from the molybdenum dithiocarbamate and/or the molybdenum dithiophosphate is 200 to 700 ppm by weight, and the total content of molybdemum is 400 ppm by weight or more. The lubricating oil composition can maintain the effect to decrease friction in engines for a long time without being affected by nitrogen oxide gases.
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: January 13, 1998
    Assignees: Tonen Corporation, Toyota Jidosha Kabushiki Kaisha
    Inventors: Katsuya Arai, Satoshi Asano, Shigeyuki Yoshizawa, Kenyu Akiyama, Takashi Kikuchi