Patents by Inventor Kohei KUWAHATA

Kohei KUWAHATA 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: 11253406
    Abstract: A topsheet (2) includes a laminate of a first nonwoven fabric (20) and a second nonwoven fabric (21), the two nonwoven fabrics (20, 21) are fused together at peripheral edges of openings (22) to form a plurality of fusion bond portions (23), and the first nonwoven fabric (20) in a region other than the fusion bond portions (23) protrudes in a direction away from the second nonwoven fabric (21) to form a plurality of projections (24) protruding toward the skin of a wearer. Each fusion bond portion (23) has a protrusion (26) protruding toward a sublayer (3), and a plurality of the protrusions (26) are dispersed on a surface (2b) of the topsheet (2) facing the sublayer (3). When the topsheet (2) is pressed toward the sublayer (3), the sublayer (3) is partially pressed by the protrusions (26).
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: February 22, 2022
    Assignee: KAO CORPORATION
    Inventor: Kohei Kuwahata
  • Publication number: 20210205153
    Abstract: A topsheet (2) includes a laminate of a first nonwoven fabric (20) and a second nonwoven fabric (21), the two nonwoven fabrics (20, 21) are fused together at peripheral edges of openings (22) to form a plurality of fusion bond portions (23), and the first nonwoven fabric (20) in a region other than the fusion bond portions (23) protrudes in a direction away from the second nonwoven fabric (21) to form a plurality of projections (24) protruding toward the skin of a wearer. Each fusion bond portion (23) has a protrusion (26) protruding toward a sublayer (3), and a plurality of the protrusions (26) are dispersed on a surface (2b) of the topsheet (2) facing the sublayer (3). When the topsheet (2) is pressed toward the sublayer (3), the sublayer (3) is partially pressed by the protrusions (26).
    Type: Application
    Filed: October 16, 2017
    Publication date: July 8, 2021
    Applicant: Kao Corporation
    Inventor: Kohei KUWAHATA
  • Publication number: 20200289341
    Abstract: An absorbent article (1) includes a liquid permeable intermediate sheet (5) arranged between a topsheet (2) and an absorbent member (4). A non-skin-facing surface of the intermediate sheet (5) has a plurality of contact portions (54S) that are in contact with the absorbent member (4) adjacent to the intermediate sheet, and a non-contact portion (54N) that is not in contact with the absorbent member (4). When the intermediate sheet (5) is pressed from the absorbent member (4) side in a thickness direction at a pressure of 30 gf/cm2, a proportion of a total area of contact faces on which the plurality of contact portions (54S) located on a pressed face that has been pressed are in contact with the absorbent member (4), with respect to the pressed face, is 80% or less.
    Type: Application
    Filed: November 16, 2018
    Publication date: September 17, 2020
    Applicant: KAO CORPORATION
    Inventor: Kohei KUWAHATA