Patents by Inventor Yuka Yamashiki

Yuka Yamashiki 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).

  • Patent number: 11422464
    Abstract: A photosensitive resin composition includes electrically conductive particles (A) whose surfaces are coated with a carbon simple substance and/or a carbon compound; an alkali-soluble resin (B) containing an acid-dissociation group; and a metal chelate compound (C) wherein the metal chelate compound (C) includes at least one selected from the group consisting of Au, Ag, Cu, Cr, Fe, Co, Ni, Bi, Pb, Zn, Pd, Pt, Al, Ti, Zr, W and Mo.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: August 23, 2022
    Assignee: Toray Industries, Inc.
    Inventors: Yohei Konoshima, Mitsuhito Suwa, Yuka Yamashiki
  • Patent number: 10788750
    Abstract: An object of the present invention is to provide a transparent photosensitive material that is usable as an interlayer insulating film for metal wires, is excellent in migration resistance and substrate adhesiveness under high temperature and high humidity conditions, and is satisfactory in patternability. The photosensitive resin composition of the present invention contains an acrylic polymer (A1) having, in a side chain thereof, a polymerizable group, a cardo based resin (A2) having a polymerizable group and an alkali-soluble group, and a photopolymerization initiator (B), and contents of the acrylic polymer (A1) and the cardo based resin (A2) satisfy a weight ratio of 1:10 to 10:1.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: September 29, 2020
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Yohei Konoshima, Mitsuhito Suwa, Chika Hibino, Yuka Yamashiki
  • Publication number: 20190265592
    Abstract: A photosensitive resin composition includes electrically conductive particles (A) whose surfaces are coated with a carbon simple substance and/or a carbon compound; an alkali-soluble resin (B) containing an acid-dissociation group; and a metal chelate compound (C) wherein the metal chelate compound (C) includes at least one selected from the group consisting of Au, Ag, Cu, Cr, Fe, Co, Ni, Bi, Pb, Zn, Pd, Pt, Al, Ti, Zr, W and Mo.
    Type: Application
    Filed: July 6, 2017
    Publication date: August 29, 2019
    Inventors: Yohei Konoshima, Mitsuhito Suwa, Yuka Yamashiki
  • Publication number: 20190049840
    Abstract: An object of the present invention is to provide a transparent photosensitive material that is usable as an interlayer insulating film for metal wires, is excellent in migration resistance and substrate adhesiveness under high temperature and high humidity conditions, and is satisfactory in patternability. The photosensitive resin composition of the present invention contains an acrylic polymer (A1) having, in a side chain thereof, a polymerizable group, a cardo based resin (A2) having a polymerizable group and an alkali-soluble group, and a photopolymerization initiator (B), and contents of the acrylic polymer (A1) and the cardo based resin (A2) satisfy a weight ratio of 1:10 to 10:1.
    Type: Application
    Filed: March 9, 2017
    Publication date: February 14, 2019
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Yohei KONOSHIMA, Mitsuhito SUWA, Chika HIBINO, Yuka YAMASHIKI
  • Patent number: 10001704
    Abstract: A photosensitive resin composition can achieve both resolution of a fine pattern and conductivity after a heat treatment. The photosensitive resin composition includes: (A) conductive fine particles whose surfaces are coated with an elemental carbon and/or a carbon compound, and (B) an alkali-soluble resin having an acid dissociating group.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: June 19, 2018
    Assignee: Toray Industries, Inc.
    Inventors: Mitsuhito Suwa, Yuka Yamashiki
  • Publication number: 20170038682
    Abstract: A photosensitive resin composition can achieve both resolution of a fine pattern and conductivity after a heat treatment. The photosensitive resin composition includes: (A) conductive fine particles whose surfaces are coated with an elemental carbon and/or a carbon compound, and (B) an alkali-soluble resin having an acid dissociating group.
    Type: Application
    Filed: March 24, 2015
    Publication date: February 9, 2017
    Inventors: Mitsuhito Suwa, Yuka Yamashiki
  • Patent number: 9058912
    Abstract: A paste composition containing an inorganic filler, a resin and a solvent, wherein the paste composition is characterized in that it contains one or more solvents of which the boiling point is 160° C. or higher and an inorganic filler of which the mean particle diameter is 5 ?m or smaller, and the total content of the solvent is 25 wt % or less based on the total amount of the paste composition, and a dielectric composition containing an inorganic filler and resin, wherein the inorganic filler includes inorganic fillers of at least two kinds of mean particle diameter, and the greatest mean particle diameter of said mean particle diameters is 0.1-5 ?m and is 3 times or more the minimum mean particle diameter.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: June 16, 2015
    Assignee: Toray Industries, Inc.
    Inventors: Yoshitake Hara, Yuka Yamashiki, Manabu Kawasaki, Toshihisa Nonaka
  • Publication number: 20110014448
    Abstract: A paste composition containing an inorganic filler, a resin and a solvent, wherein the paste composition is characterized in that it contains one or more solvents of which the boiling point is 160° C. or higher and an inorganic filler of which the mean particle diameter is 5 ?m or smaller, and the total content of the solvent is 25 wt % or less based on the total amount of the paste composition, and a dielectric composition containing an inorganic filler and resin, wherein the inorganic filler includes inorganic fillers of at least two kinds of mean particle diameter, and the greatest mean particle diameter of said mean particle diameters is 0.1-5 ?m and is 3 times or more the minimum mean particle diameter.
    Type: Application
    Filed: July 15, 2010
    Publication date: January 20, 2011
    Inventors: Yoshitake Hara, Yuka Yamashiki, Manabu Kawasaki, Toshihisa Nonaka
  • Publication number: 20060159927
    Abstract: A paste composition contains an inorganic filler, a resin and a solvent, wherein the paste composition is characterized in that it contains one or more solvents of which the boiling point is 160° C. or higher and an inorganic filler of which the mean particle diameter is 5 ?m or smaller, and the total content of the solvent is 25 wt % or less based on the total amount of the paste composition, and a dielectric composition contains an inorganic filler and resin, wherein the inorganic filler includes inorganic fillers of at least two kinds of mean particle diameter, and the greatest mean particle diameter of said mean particle diameters is 0.1-5 ?m and is 3 times or more to the minimum mean particle diameter. It is possible to obtain a high dielectric constant composition of which linear expansion coefficient is low, and which has a large capacitance.
    Type: Application
    Filed: March 25, 2004
    Publication date: July 20, 2006
    Inventors: Yoshitake Hara, Yuka Yamashiki, Manabu Kawasaki, Toshihisa Nonaka
  • Patent number: 6455208
    Abstract: An object of the present invention is to provide a liquid crystal display exhibiting excellent display performance. The object of the present invention is achieved by a colored polymer thin film having an average refractive index of 1.60 to 1.90, and an absolute value of birefringence of 0.01 or less, and a color filter and a liquid crystal display using the colored polymer thin film. The color filter using the colored polymer thin film of the present invention exhibits reduced retardation, and can thus provide a liquid crystal display exhibiting excellent display performance.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: September 24, 2002
    Assignee: Toray Industries, Inc.
    Inventors: Yuka Yamashiki, Masuichi Eguchi, Takuo Watanabe, Jun Tsukamoto