Patents by Inventor Kazumasa Shinga

Kazumasa Shinga 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).

  • Pressure-sensitive adhesive for pressure-sensitive adhesive layer in volume hologram laminate
    Publication number: 20030068491
    Abstract: A pressure-sensitive adhesive for a pressure-sensitive adhesive layer in a volume hologram laminate is provided which, when kept in the pressed state, for example, during storage, is less likely to cause spotty hologram defects in the volume hologram layer. The pressure-sensitive adhesive for a pressure-sensitive adhesive layer in a volume hologram laminate is a pressure-sensitive adhesive for a pressure-sensitive adhesive layer in a volume hologram laminate comprising a substrate 2 and, stacked on the substrate 2 in the following order, a first pressure-sensitive adhesive layer 3, a volume hologram layer 5, a second pressure-sensitive adhesive layer 4, and a surface protective film 6, the second pressure-sensitive adhesive layer having been formed from an acrylic pressure-sensitive adhesive comprising an acrylic copolymer resin, composed mainly of an alkyl acrylate, and a crosslinking agent, the second pressure-sensitive adhesive layer having a dynamic storage modulus of not less than 2.
    Type: Application
    Filed: November 19, 2002
    Publication date: April 10, 2003
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Hiroyuki Otaki, Kenji Ueda, Kazumasa Shinga, Masahiro Kawasaki
  • Pressure-sensitive adhesive for pressure-sensitive adhesive layer in volume hologram laminate
    Patent number: 6509076
    Abstract: A pressure-sensitive adhesive for a pressure-sensitive adhesive layer in a volume hologram laminate is provided which, when kept in the pressed state, for example, during storage, is less likely to cause spotty hologram defects in the volume hologram layer. The pressure-sensitive adhesive for a pressure-sensitive adhesive layer in a volume hologram laminate is a pressure-sensitive adhesive for a pressure-sensitive adhesive layer in a volume hologram laminate comprising a substrate 2 and, stacked on the substrate 2 in the following order, a first pressure-sensitive adhesive layer 3, a volume hologram layer 5, a second pressure-sensitive adhesive layer 4, and a surface protective film 6, the second pressure-sensitive adhesive layer having been formed from an acrylic pressure-sensitive adhesive comprising an acrylic copolymer resin, composed mainly of an alkyl acrylate, and a crosslinking agent, the second pressure-sensitive adhesive layer having a dynamic storage modulus of not less than 2.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: January 21, 2003
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hiroyuki Otaki, Kenji Ueda, Kazumasa Shinga, Masahiro Kawasaki