Patents by Inventor Mami NAGASHIMA

Mami NAGASHIMA 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).

  • Publication number: 20230087440
    Abstract: A decorative sheet includes at least a topcoat layer disposed to face a substrate layer in a first direction, the front surface of the topcoat layer having a wavy roughness profile measured with a cutoff wavelength ?s of 8 ?m and a cutoff wavelength ?c of 2.5 mm according to JIS B0601:2001 in a second direction perpendicular to the first direction, a selected evaluation portion of the wavy roughness profile comprising a plurality of profile elements, an evaluation length of the selected evaluation portion of the wavy roughness profile having 10 mm, the selected evaluation portion of the wavy roughness profile being designed to have an arithmetic mean deviation Ra of 10 ?m or less; and to have a mean width of the profile elements and a ten point height, the mean width and the ten point height satisfying the following expression: 5?RSm/RzJIS?40 . . . (1), where RSm represents the mean width, and RzJIS represents the ten point height.
    Type: Application
    Filed: November 30, 2022
    Publication date: March 23, 2023
    Applicant: TOPPAN INC.
    Inventors: Mami NAGASHIMA, Masamitsu NAGAHAMA, Masatoshi TAKAHASHI
  • Patent number: 11446906
    Abstract: A decorative sheet includes a primary film layer; a transparent resin layer; and a surface protective layer, in this order; the surface protective layer is formed of a plurality of layers with a layer located on an outermost surface is a surface protective layer, and a layer underlying the surface protective layer is a second surface protective layer and includes one or more ionizing radiation-curable resins having an erosion rate E in a range of 0.10 ?m/g or more and 0.45 ?m/g or less, and one or more thermosetting resins having an erosion rate E in a range of 0.30 ?m/g or more and 0.6 ?m/g or less, the erosion rate E being measured by using polygonal alumina powder having an average particle size (D50) of 1.2 ?m, and a mass ratio between the ionizing radiation-curable resin and the thermosetting resin (ionizing radiation-curable resin/thermosetting resin) is 95/5 to 40/60.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: September 20, 2022
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Yoshimi Yamasaki, Mami Nagashima, Masamitsu Nagahama, Masatoshi Takahashi
  • Publication number: 20210316540
    Abstract: A decorative sheet includes a primary film layer; a transparent resin layer; and a surface protective layer, in this order; the surface protective layer is formed of a plurality of layers with a layer located on an outermost surface is a surface protective layer, and a layer underlying the surface protective layer is a second surface protective layer and includes one or more ionizing radiation-curable resins having an erosion rate E in a range of 0.10 ?m/g or more and 0.45 ?m/g or less, and one or more thermosetting resins having an erosion rate E in a range of 0.30 ?m/g or more and 0.6 ?m/g or less, the erosion rate E being measured by using polygonal alumina powder having an average particle size (D50) of 1.2 ?m, and a mass ratio between the ionizing radiation-curable resin and the thermosetting resin (ionizing radiation-curable resin/thermosetting resin) is 95/5 to 40/60.
    Type: Application
    Filed: June 17, 2021
    Publication date: October 14, 2021
    Applicant: TOPPAN PRINTING CO.,LTD.
    Inventors: Yoshimi YAMASAKI, Mami NAGASHIMA, Masamitsu NAGAHAMA, Masatoshi TAKAHASHI
  • Patent number: 11021598
    Abstract: A resin molded product, a laminate, and a decorative sheet having high weatherability. A decorative sheet includes a resin molded product as a protective layer, and the resin molded product includes an ultraviolet absorber having pKa of ?5.5 or more and ?4.5 or less when irradiated with light, and a photostabilizer having pKa of 3.0 or more and 7.0 or less. The added amount of each of the ultraviolet absorber and the photostabilizer is 3.0 parts by mass or less per 100 parts by mass of the resin.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: June 1, 2021
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Naoyuki Shibayama, Toru Ookubo, Erika Yamaguchi, Yuichi Matsumoto, Mami Nagashima
  • Publication number: 20200048445
    Abstract: A resin molded product, a laminate, and a decorative sheet having high weatherability. A decorative sheet includes a resin molded product as a protective layer, and the resin molded product includes an ultraviolet absorber having pKa of ?5.5 or more and ?4.5 or less when irradiated with light, and a photostabilizer having pKa of 3.0 or more and 7.0 or less. The added amount of each of the ultraviolet absorber and the photostabilizer is 3.0 parts by mass or less per 100 parts by mass of the resin.
    Type: Application
    Filed: October 16, 2019
    Publication date: February 13, 2020
    Applicant: TOPPAN PRINTING CO., LTD.
    Inventors: Naoyuki SHIBAYAMA, Toru OOKUBO, Erika YAMAGUCHI, Yuichi MATSUMOTO, Mami NAGASHIMA