Patents by Inventor Norihito Ikeuchi

Norihito Ikeuchi 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: 11925540
    Abstract: An elastic sheet for an absorbent article includes a first fibrous layer disposed on a first surface of the elastic sheet, a second fibrous layer disposed on a second surface of the elastic sheet opposite to the first surface, and contractible elastic members secured between the first fibrous layer and the second fibrous layer. The first fibrous layer and the second fibrous layer each include continuous fibers of thermoplastic and gathers formed between adjacent ones of the elastic members. The gathers are disposed in an intersecting direction intersecting with a direction in which the elastic members extend. An average flexural rigidity value of the first fibrous layer and the second fibrous layer in accordance with a KES method is 0.0035×10?4 to 0.022×10?4 (N·m2/m). A thickness under a compression load to the gathers in accordance with the KES method is 0.22 to 1.5 mm.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: March 12, 2024
    Assignee: Unicharm Corporation
    Inventors: Norihito Ikeuchi, Satoshi Mitsuno
  • Publication number: 20200237577
    Abstract: An elastic sheet for an absorbent article includes a first fibrous layer disposed on a first surface of the elastic sheet, a second fibrous layer disposed on a second surface of the elastic sheet opposite to the first surface, and contractible elastic members secured between the first fibrous layer and the second fibrous layer. The first fibrous layer and the second fibrous layer each include continuous fibers of thermoplastic and gathers formed between adjacent ones of the elastic members. The gathers are disposed in an intersecting direction intersecting with a direction in which the elastic members extend. An average flexural rigidity value of the first fibrous layer and the second fibrous layer in accordance with a KES method is 0.0035×10?4 to 0.022×10?4 (N·m2/m). A thickness under a compression load to the gathers in accordance with the KES method is 0.22 to 1.5 mm.
    Type: Application
    Filed: April 10, 2020
    Publication date: July 30, 2020
    Applicant: Unicharm Corporation
    Inventors: Norihito Ikeuchi, Satoshi Mitsuno