Patents by Inventor Jin Arakida

Jin Arakida 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: 20230158783
    Abstract: Specifically, the present invention provides a decorative sheet comprising a laminate, the laminate comprising at least a base material sheet and a first surface-protecting layer in sequence in the thickness direction; (1) the first surface-protecting layer comprising an ionizing radiation-curable resin containing two kinds of aliphatic urethane acrylates, i.e., resin A and resin B, wherein resin A is an aliphatic urethane acrylate with an isocyanurate skeleton, and resin B is an aliphatic urethane acrylate with an alicyclic skeleton without an isocyanurate skeleton, (2) the first surface-protecting layer having a nanoindentation hardness of 160 MPa or more and 240 MPa or less, and (3) the base material sheet comprising a polyolefin resin and having a nanoindentation hardness of 30 MPa or more and 80 MPa or less.
    Type: Application
    Filed: March 11, 2021
    Publication date: May 25, 2023
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Masataka Wada, Toshinaru Kayahara, Jin Arakida, Risa Yoshinami
  • Patent number: 11458708
    Abstract: A decorative sheet having a surface-protecting layer, the surface-protecting layer having excellent contamination resistance, alkali resistance, etc., for a long period of time, while limiting the occurrence of breakage and cracks when an impact is applied thereto or during processing; and a decorative plate using the decorative sheet is provided. Specifically, a decorative sheet comprising a laminate, the laminate comprising at least a base material sheet and a first surface-protecting layer in sequence in the thickness direction; (1) the first surface-protecting layer comprising an ionizing radiation-curable resin containing two kinds of aliphatic urethane acrylates, i.e., resin A and resin B, wherein resin A is an aliphatic urethane acrylate with an isocyanurate skeleton, and resin B is an aliphatic urethane acrylate with an alicyclic skeleton without an isocyanurate skeleton, and (2) the first surface-protecting layer having a nanoindentation hardness of 160 MPa or more and 240 MPa or less.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: October 4, 2022
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yohei Shimizu, Jin Arakida, Masataka Wada
  • Publication number: 20210276309
    Abstract: A decorative sheet having a surface-protecting layer, the surface-protecting layer having excellent contamination resistance, alkali resistance, etc., for a long period of time, while limiting the occurrence of breakage and cracks when an impact is applied thereto or during processing; and a decorative plate using the decorative sheet is provided. Specifically, a decorative sheet comprising a laminate, the laminate comprising at least a base material sheet and a first surface-protecting layer in sequence in the thickness direction; (1) the first surface-protecting layer comprising an ionizing radiation-curable resin containing two kinds of aliphatic urethane acrylates, i.e., resin A and resin B, wherein resin A is an aliphatic urethane acrylate with an isocyanurate skeleton, and resin B is an aliphatic urethane acrylate with an alicyclic skeleton without an isocyanurate skeleton, and (2) the first surface-protecting layer having a nanoindentation hardness of 160 MPa or more and 240 MPa or less.
    Type: Application
    Filed: September 5, 2019
    Publication date: September 9, 2021
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Yohei Shimizu, Jin Arakida, Masataka Wada
  • Publication number: 20190346464
    Abstract: The disclosure generally relates generally to lipid nanodiscs, in particular to lipid nanodiscs formed from acryloyl-based copolymers. A lipid nanodisc according to the disclosure includes a lipid bilayer having a first hydrophilic face and a second hydrophilic face opposing the first hydrophilic face, and a hydrophobic edge between the opposing hydrophilic faces, and an acryloyl-based copolymer encircling the hydrophobic edge of the lipid bilayer. The acryloyl-based copolymer includes a first monomer unit having a pendant hydrophobic group and a second monomer unit having a pendant hydrophilic group. Methods of making and characterizing the lipid nanodiscs are also disclosed.
    Type: Application
    Filed: April 17, 2019
    Publication date: November 14, 2019
    Inventors: Ayyalusamy Ramamoorthy, Thirupathi Ravula, Bikash Sahoo, Kazuma Yasuhara, Jin Arakida, Jun-Ichi Kikuchi