Patents by Inventor Mitsuru Shiiba

Mitsuru Shiiba 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).

  • Resin-impregnated boron nitride sintered body and use for same
    Patent number: 10377676
    Abstract: A resin-impregnated boron nitride sintered body having superior thermal conductivity and superior strength, and a resin-impregnated boron nitride sintered body having superior conductivity and small anisotropy of thermal conductivity are provided. A resin-impregnated boron nitride sintered body, including: 30 to 90 volume % of a boron nitride sintered body having boron nitride particles bonded three-dimensionally; and 10 to 70 volume % of a resin; wherein the boron nitride sintered body has a porosity of 10 to 70%; the boron nitride particles of the boron nitride sintered body has an average long diameter of 10 ?m or more; the boron nitride sintered body has a graphitization index by powder X-ray diffractometry is 4.0 or less; and an orientation degree of the boron nitride particles of the boron nitride sintered body by I.O.P is 0.01 to 0.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: August 13, 2019
    Assignee: Denka Company Limited
    Inventors: Koki Ikarashi, Shuhei Nonaka, Toshikatsu Mitsunaga, Hideki Hirotsuru, Mitsuru Shiiba
  • Resin-impregnated boron nitride sintered body and use for same
    Patent number: 10087112
    Abstract: A resin-impregnated boron nitride sintered body having superior thermal conductivity and superior strength, and a resin-impregnated boron nitride sintered body having superior conductivity and small anisotropy of thermal conductivity are provided. A resin-impregnated boron nitride sintered body, including: 30 to 90 volume % of a boron nitride sintered body having boron nitride particles bonded three-dimensionally; and 10 to 70 volume % of a resin; wherein the boron nitride sintered body has a porosity of 10 to 70%; the boron nitride particles of the boron nitride sintered body has an average long diameter of 10 ?m or more; the boron nitride sintered body has a graphitization index by powder X-ray diffractometry is 4.0 or less; and an orientation degree of the boron nitride particles of the boron nitride sintered body by I.O.P is 0.01 to 0.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: October 2, 2018
    Assignee: Denka Company Limited
    Inventors: Koki Ikarashi, Shuhei Nonaka, Toshikatsu Mitsunaga, Hideki Hirotsuru, Mitsuru Shiiba
  • RESIN-IMPREGNATED BORON NITRIDE SINTERED BODY AND USE FOR SAME
    Publication number: 20170036963
    Abstract: A resin-impregnated boron nitride sintered body having superior thermal conductivity and superior strength, and a resin-impregnated boron nitride sintered body having superior conductivity and small anisotropy of thermal conductivity are provided. A resin-impregnated boron nitride sintered body, including: 30 to 90 volume % of a boron nitride sintered body having boron nitride particles bonded three-dimensionally; and 10 to 70 volume % of a resin; wherein the boron nitride sintered body has a porosity of 10 to 70%; the boron nitride particles of the boron nitride sintered body has an average long diameter of 10 ?m or more; the boron nitride sintered body has a graphitization index by powder X-ray diffractometry is 4.0 or less; and an orientation degree of the boron nitride particles of the boron nitride sintered body by I.O.P is 0.01 to 0.
    Type: Application
    Filed: October 19, 2016
    Publication date: February 9, 2017
    Applicant: Denka Company Limited
    Inventors: Koki Ikarashi, Shuhei Nonaka, Toshikatsu Mitsunaga, Hideki Hirotsuru, Mitsuru Shiiba
  • RESIN-IMPREGNATED BORON NITRIDE SINTERED BODY AND USE FOR SAME
    Publication number: 20160130187
    Abstract: A resin-impregnated boron nitride sintered body having superior thermal conductivity and superior strength, and a resin-impregnated boron nitride sintered body having superior conductivity and small anisotropy of thermal conductivity are provided. A resin-impregnated boron nitride sintered body, including: 30 to 90 volume % of a boron nitride sintered body having boron nitride particles bonded three-dimensionally; and 10 to 70 volume % of a resin; wherein the boron nitride sintered body has a porosity of 10 to 70%; the boron nitride particles of the boron nitride sintered body has an average long diameter of 10 ?m or more; the boron nitride sintered body has a graphitization index by powder X-ray diffractometry is 4.0 or less; and an orientation degree of the boron nitride particles of the boron nitride sintered body by I.O.P is 0.01 to 0.
    Type: Application
    Filed: June 2, 2014
    Publication date: May 12, 2016
    Applicant: Denka Company Limited
    Inventors: Koki Ikarashi, Shuhei Nonaka, Toshikatsu Mitsunaga, Hideki Hirotsuru, Mitsuru Shiiba