Patents by Inventor Takahisa KOROKI

Takahisa KOROKI 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: 10731299
    Abstract: A method of manufacturing a toilet paper includes: adding, to a paper material including a leaf bleached kraft pulp and a needle bleached kraft pulp whose mass % is 15 to 55 mass %, as fiber materials, 0.08 to 0.15 mass %, with respect to a mass of the pulps, of a fatty acid ester series compound whose particle size is less than or equal to 0.1 ?m, and 0.05 to 0.15 mass %, with respect to the mass of the pulps, of a fatty acid amide series compound whose particle size is 0.5 to 5 ?m in this order, to make a paper of a paper material in which the fatty acid ester series compound and the fatty acid amide series compound are added.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: August 4, 2020
    Assignee: DAIO PAPER CORPORATION
    Inventor: Takahisa Koroki
  • Patent number: 10550521
    Abstract: A 1-ply toilet paper includes a leaf bleached kraft pulp and a needle bleached kraft pulp, as constituting fibers, mass % of the needle bleached kraft pulp being 15 to 55 mass %; 0.024 to 0.075 mass %, with respect to a mass of the pulps, of a fatty acid ester series compound; and 0.015 to 0.075 mass %, with respect to the mass of the pulps, of a fatty acid amide series compound, wherein a basis weight is 21.0 to 22.5 g/m2, wherein a paper thickness is 110 to 155 ?m, wherein a degree of elongation is 14 to 25%, wherein an MMD is less than 9.3, wherein dry tensile strength in a longitudinal direction is 245 to 330 cN/25 mm, and wherein dry tensile strength in a lateral direction is 85 to 135 cN/25 mm.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: February 4, 2020
    Assignee: DAIO PAPER CORPORATION
    Inventor: Takahisa Koroki
  • Publication number: 20200002895
    Abstract: A method of manufacturing a toilet paper includes: adding, to a paper material including a leaf bleached kraft pulp and a needle bleached kraft pulp whose mass % is 15 to 55 mass %, as fiber materials, 0.08 to 0.15 mass %, with respect to a mass of the pulps, of a fatty acid ester series compound whose particle size is less than or equal to 0.1 ?m, and 0.05 to 0.15 mass %, with respect to the mass of the pulps, of a fatty acid amide series compound whose particle size is 0.5 to 5 ?m in this order, to make a paper of a paper material in which the fatty acid ester series compound and the fatty acid amide series compound are added.
    Type: Application
    Filed: September 13, 2019
    Publication date: January 2, 2020
    Inventor: Takahisa KOROKI
  • Publication number: 20180282948
    Abstract: A 1-ply toilet paper includes a leaf bleached kraft pulp and a needle bleached kraft pulp, as constituting fibers, mass % of the needle bleached kraft pulp being 15 to 55 mass %; 0.024 to 0.075 mass %, with respect to a mass of the pulps, of a fatty acid ester series compound; and 0.015 to 0.075 mass %, with respect to the mass of the pulps, of a fatty acid amide series compound, wherein a basis weight is 21.0 to 22.5 g/m2, wherein a paper thickness is 110 to 155 ?m, wherein a degree of elongation is 14 to 25%, wherein an MMD is less than 9.3, wherein dry tensile strength in a longitudinal direction is 245 to 330 cN/25 mm, and wherein dry tensile strength in a lateral direction is 85 to 135 cN/25 mm.
    Type: Application
    Filed: August 31, 2016
    Publication date: October 4, 2018
    Inventor: Takahisa KOROKI