Patents by Inventor Yoshiki KUSAHARA

Yoshiki KUSAHARA 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).

  • Silicon-oxide-coated zinc oxide and method for manufacturing same, silicon-oxide-coated-zinc-oxide-containing composition, and cosmetic
    Patent number: 9642785
    Abstract: Provided are a silicon-oxide-coated zinc oxide capable of suppressing the elution of zinc ions from zinc oxide particles, a method for manufacturing the same, a silicon-oxide-coated-zinc-oxide-containing composition, and a cosmetic. The silicon-oxide-coated zinc oxide is a silicon-oxide-coated zinc oxide formed by coating the surfaces of zinc oxide particles with a silicon oxide coating, in which the average particle diameter of the zinc oxide particles is in a range of 1 nm or more and 50 nm or less, when the abundance ratio of silicon in the silicon oxide coating in a Q3 environment is indicated by Q3, and the abundance ratio in a Q4 environment is indicated by Q4, Q3+Q4?0.6 and Q4/(Q3+Q4)?0.5, and furthermore, the decomposition ratio of Brilliant Blue generated by the photocatalytic activity of the zinc oxide particles is 3% or less.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: May 9, 2017
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Tetsuro Itagaki, Yoshiki Kusahara, Gaku Fujihashi, Syunsuke Suma
  • SILICON-OXIDE-COATED ZINC OXIDE AND METHOD FOR MANUFACTURING SAME, SILICON-OXIDE-COATED-ZINC-OXIDE-CONTAINING COMPOSITION, AND COSMETIC
    Publication number: 20160045411
    Abstract: Provided are a silicon-oxide-coated zinc oxide capable of suppressing the elution of zinc ions from zinc oxide particles, a method for manufacturing the same, a silicon-oxide-coated-zinc-oxide-containing composition, and a cosmetic. The silicon-oxide-coated zinc oxide is a silicon-oxide-coated zinc oxide formed by coating the surfaces of zinc oxide particles with a silicon oxide coating, in which the average particle diameter of the zinc oxide particles is in a range of 1 nm or more and 50 nm or less, when the abundance ratio of silicon in the silicon oxide coating in a Q3 environment is indicated by Q3, and the abundance ratio in a Q4 environment is indicated by Q4, Q3+Q4?0.6 and Q4/(Q3+Q4)?0.5, and furthermore, the decomposition ratio of Brilliant Blue generated by the photocatalytic activity of the zinc oxide particles is 3% or less.
    Type: Application
    Filed: March 31, 2014
    Publication date: February 18, 2016
    Inventors: Tetsuro ITAGAKI, Yoshiki KUSAHARA, Gaku FUJIHASHI, Syunsuke SUMA