Patents by Inventor Yoshitake Hara

Yoshitake Hara 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: 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
  • Patent number: 8247338
    Abstract: The present invention relates to a high dielectric constant paste composition comprising (A) inorganic particles having a perovskite crystal structure or a complex perovskite crystal structure, (B) a compound represented by any one of the general formulas (1) to (4) shown below, and (C) an organic solvent. The present invention provides a high dielectric constant paste composition for producing a high dielectric constant dielectric composition which has high insulation reliability and exhibits satisfactory resistance in a high-temperature high-humidity bias test.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: August 21, 2012
    Assignee: Toray Industries, Inc
    Inventors: Yoichi Shimba, Yoshitake Hara, Tsukuru Mizuguchi, Toshihisa Nonaka
  • Publication number: 20110053759
    Abstract: The present invention relates to a high dielectric constant paste composition comprising (A) inorganic particles having a perovskite crystal structure or a complex perovskite crystal structure, (B) a compound represented by any one of the general formulas (1) to (4) shown below, and (C) an organic solvent. The present invention provides a high dielectric constant paste composition for producing a high dielectric constant dielectric composition which has high insulation reliability and exhibits satisfactory resistance in a high-temperature high-humidity bias test.
    Type: Application
    Filed: January 14, 2009
    Publication date: March 3, 2011
    Applicant: Toray Industries ,Inc.
    Inventors: Yoichi Shimba, Yoshitake Hara, Tsukuru Mizuguchi, 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: 20090103236
    Abstract: A paste composition containing (a) a resin, (b) high dielectric constant inorganic particles having a perovskite crystal structure, and (c) an organic solvent, wherein the average particle diameter of the high dielectric constant inorganic particles is 0.002 ?m to 0.06 ?m, and the amount of all organic solvents is 35 wt % to 85 wt % based on the total amount of the paste composition. Further, a dielectric composition containing (a) a resin and (b) high dielectric constant inorganic particles having a perovskite crystal structure, wherein the average particle diameter of the high dielectric constant inorganic particles (b) is 0.002 ?m to 0.06 ?m.
    Type: Application
    Filed: September 1, 2006
    Publication date: April 23, 2009
    Inventors: Toshihisa Nonaka, Yoshitake Hara, Masahiro Yoshioka
  • 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