Patents by Inventor Yusuke Wanibuchi

Yusuke Wanibuchi 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: 11708664
    Abstract: A synthetic leather comprising a substrate, a skin layer that is disposed on one main surface of the substrate, and an anti-stain layer that is disposed to cover the skin layer. The anti-stain layer contains a base resin that comprises silicon and a unit derived from a compound that has a urethane bond. In the anti-stain layer, a fluorine atom/silicon atom atomic ratio, which is a proportion of a fluorine atom to the silicon atom, is 0.01 or less. A first color difference ?E1* between before and after a stain adhesion test performed on the synthetic leather rubbed under a specific condition is 5 or less.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: July 25, 2023
    Assignee: Seiren Co., Ltd.
    Inventor: Yusuke Wanibuchi
  • Patent number: 11131060
    Abstract: In a skin material, a front face of a first fibrous base material is a first color and a front face of a second fibrous base material is a second color. The second fibrous base material is laminated on a back face of the first fibrous base material. A through hole of the first fibrous base material penetrates the first fibrous base material in a laminating direction. A dimension of the through hole in a first direction is set to a first value (N1). A dimension of the through hole in a second direction is set to a second value (N2). A dimension of the through hole in the laminating direction is set to a third value (N3). The first value (N1) and the second value (N2) are set to be 0.38 times or more and 12 times or less with respect to the third value (N3).
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: September 28, 2021
    Inventor: Yusuke Wanibuchi
  • Publication number: 20210040683
    Abstract: In a skin material, a front face of a first fibrous base material is a first color and a front face of a second fibrous base material is a second color. The second fibrous base material is laminated on a back face of the first fibrous base material. A through hole of the first fibrous base material penetrates the first fibrous base material in a laminating direction. A dimension of the through hole in a first direction is set to a first value (N1). A dimension of the through hole in a second direction is set to a second value (N2). A dimension of the through hole in the laminating direction is set to a third value (N3). The first value (N1) and the second value (N2) are set to be 0.38 times or more and 12 times or less with respect to the third value (N3).
    Type: Application
    Filed: October 31, 2019
    Publication date: February 11, 2021
    Applicant: SEIREN CO., LTD.
    Inventor: Yusuke Wanibuchi
  • Publication number: 20200141052
    Abstract: A synthetic leather comprising a substrate, a skin layer that is disposed on one main surface of the substrate, and an anti-stain layer that is disposed to cover the skin layer. The anti-stain layer contains a base resin that comprises silicon and a unit derived from a compound that has a urethane bond. In the anti-stain layer, a fluorine atom/silicon atom atomic ratio, which is a proportion of a fluorine atom to the silicon atom, is 0.01 or less. A first color difference ?E1* between before and after a stain adhesion test performed on the synthetic leather rubbed under a specific condition is 5 or less.
    Type: Application
    Filed: October 29, 2019
    Publication date: May 7, 2020
    Applicant: SEIREN CO.,LTD.
    Inventor: Yusuke Wanibuchi