Patents by Inventor Shuta YASUI

Shuta YASUI 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: 10618261
    Abstract: [Problem] To provide tissue paper excellent in “moistness” and “smoothness”. [Solution] The problem can be solved by tissue paper being two-ply tissue paper, in which a basis weight per one ply is greater than 12.9 g/m2 and less than 16.8 g/m2, a paper thickness in the two-ply state is not less than 128 ?m nor more than 150 ?m, and a chemical agent containing glycerin and 1,3-propanediol in a total amount of 83.7 mass % or more and having a mass ratio between glycerin and 1,3-propanediol of greater than 1:0.14 and less than 1:6.64, is contained in an amount of greater than 2.3 g/m2 and less than 6.1 g/m2.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: April 14, 2020
    Assignee: Daio Paper Corporation
    Inventor: Shuta Yasui
  • Patent number: 10570568
    Abstract: An all-purpose type tissue paper. A two-ply tissue paper that does not have moisturizer applied thereon, that has a basis weight per ply of 10.0-16.0 g/m2, a paper thickness per two-ply of 120-200 ?m, a softness of not more than 1.0, a dry tensile strength (T) in the MD direction of 240-300 cN/25 mm, and an average dynamic friction coefficient of 1.40-1.65.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: February 25, 2020
    Assignees: DAIO PAPER CORPPORATION, TOHOKU UNIVERSITY
    Inventors: Shuta Yasui, Norimitsu Hirata, Hidenori Yorozu, Kazuo Hokkirigawa, Takeshi Yamaguchi, Kei Shibata, Wataru Tanabe, Shohei Matsumura
  • Publication number: 20200032459
    Abstract: To provide a moisturizing tissue paper having excellent softness, smoothness, and strength. The problem can be solved by providing a two-ply tissue paper containing a moisturizing agent, in which a basis weight per ply is 10 to 20 g/m2, a two-ply paper thickness is 130 to 200 and all of a polyol, hyaluronic acid, a fatty acid ester-based compound, and a fatty acid amide-based compound are contained.
    Type: Application
    Filed: May 23, 2017
    Publication date: January 30, 2020
    Inventor: Shuta YASUI
  • Patent number: 10316470
    Abstract: To provide tissue paper with an excellent “moist texture” and high “smooth texture.” 2-ply tissue paper is characterized by the basis weight per ply being 15 to 18 g/m2, the 2-ply paper thickness being 135 to 160 ?m, and containing 2.9 g/m2 or more and 8.0 g/m2 or less of chemical agent which contains glycerin and 1,3-propanediol in a total amount of 83.7 mass % or more, wherein the mass ratio of glycerin and 1,3-propanediol is 1:0.04 or more and 1:5.58 or less.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: June 11, 2019
    Assignee: Daio Paper Corporation
    Inventor: Shuta Yasui
  • Publication number: 20180272680
    Abstract: [Problem] To provide tissue paper excellent in “moistness” and “smoothness”. [Solution] The problem can be solved by tissue paper being two-ply tissue paper, in which a basis weight per one ply is greater than 12.9 g/m2 and less than 16.8 g/m2, a paper thickness in the two-ply state is not less than 128 ?m nor more than 150 ?m, and a chemical agent containing glycerin and 1,3-propanediol in a total amount of 83.7 mass % or more and having a mass ratio between glycerin and 1,3-propanediol of greater than 1:0.14 and less than 1:6.64, is contained in an amount of greater than 2.3 g/m2 and less than 6.1 g/m2.
    Type: Application
    Filed: August 4, 2016
    Publication date: September 27, 2018
    Inventor: Shuta YASUI
  • Publication number: 20180258592
    Abstract: An all-purpose type tissue paper. A two-ply tissue paper that does not have moisturizer applied thereon, that has a basis weight per ply of 10.0-16.0 g/m2, a paper thickness per two-ply of 120-200 ?m, a softness of not more than 1.0, a dry tensile strength (T) in the MD direction of 240-300 cN/25 mm, and an average dynamic friction coefficient of 1.40-1.65.
    Type: Application
    Filed: August 4, 2016
    Publication date: September 13, 2018
    Applicants: DAIO PAPER CORPORATION, TOHOKU UNIVERSITY
    Inventors: Shuta YASUI, Norimitsu HIRATA, Hidenori YOROZU, Kazuo HOKKIRIGAWA, Takeshi YAMAGUCHI, Kei SHIBATA, Wataru TANABE, Shohei MATSUMURA
  • Patent number: 9901220
    Abstract: A pocket tissue includes a stack of paper tissues each of which is folded at a plurality of fold portions and a film package that contains the stack, the pocket tissue allowing the paper tissues to be taken out from a dispense opening formed in an upper surface of the package. Each of the paper tissues includes a first fold portion located at a position that substantially bisects the paper tissue, a second fold portion extending in a longitudinal direction of the paper tissue folded at the first fold portion, and a third fold portion extending in a transverse direction of the paper tissue folded at the second fold portion. The stack is formed by stacking the paper tissues each of which has been folded at the third fold portion to be in a state in which the first fold portion is exposed to the outside.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: February 27, 2018
    Assignee: DAIO PAPER CORPORATION
    Inventor: Shuta Yasui
  • Publication number: 20180030656
    Abstract: To provide tissue paper with an excellent “moist texture” and high “smooth texture.” 2-ply tissue paper is characterized by the basis weight per ply being less than 13 g/m2, the 2-ply paper thickness being less than 135 ?m, and containing above 1.4 g/m2 and less than 4.9 g/m2 of chemical agent which contains glycerin and 1,3-propanediol in a total amount of 83 mass % or more, wherein the mass ratio of glycerin and 1,3-propanediol is above 1:0.18 and less than 1:5.11.
    Type: Application
    Filed: March 15, 2016
    Publication date: February 1, 2018
    Inventor: Shuta YASUI
  • Publication number: 20180023255
    Abstract: To provide tissue paper with an excellent “moist texture” and high “smooth texture.” 2-ply tissue paper is characterized by the basis weight per ply being 15 to 18 g/m2, the 2-ply paper thickness being 135 to 160 ?m, and containing 2.9 g/m2 or more and 8.0 g/m2 or less of chemical agent which contains glycerin and 1,3-propanediol in a total amount of 83.7 mass % or more, wherein the mass ratio of glycerin and 1,3-propanediol is 1:0.04 or more and 1:5.58 or less.
    Type: Application
    Filed: March 15, 2016
    Publication date: January 25, 2018
    Inventor: Shuta YASUI
  • Publication number: 20160256020
    Abstract: A pocket tissue includes a stack of paper tissues each of which is folded at a plurality of fold portions and a film package that contains the stack, the pocket tissue allowing the paper tissues to be taken out from a dispense opening formed in an upper surface of the package. Each of the paper tissues includes a first fold portion located at a position that substantially bisects the paper tissue, a second fold portion extending in a longitudinal direction of the paper tissue folded at the first fold portion, and a third fold portion extending in a transverse direction of the paper tissue folded at the second fold portion. The stack is formed by stacking the paper tissues each of which has been folded at the third fold portion to be in a state in which the first fold portion is exposed to the outside.
    Type: Application
    Filed: January 27, 2015
    Publication date: September 8, 2016
    Applicant: DAIO PAPER CORPORATION
    Inventor: Shuta YASUI