Patents by Inventor Shogo Sakakibara

Shogo Sakakibara 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 sheet for optics
    Patent number: 8911873
    Abstract: An ultraviolet cross-linkable pressure sensitive adhesive sheet includes a (meth)acrylic copolymer of a monomer containing a (meth)acrylic acid ester having an ultraviolet cross-linkable site. The storage modulus of the pressure sensitive adhesive sheet before ultraviolet cross-linking is from 5.0×104 to 1.0×106 Pa at 30° C. and 1 Hz and 5.0×104 Pa or less at 80° C. and 1 Hz. The storage modulus of the pressure sensitive adhesive sheet after ultraviolet cross-linking is 1.0×103 Pa or more at 130° C. and 1 Hz.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: December 16, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Toshihiro Suwa, Shogo Sakakibara, Sotaro Endo, Saori Ueda, Shunsuke Suzuki
  • PRESSURE SENSITIVE ADHESIVE SHEET FOR OPTICS
    Publication number: 20120328891
    Abstract: An ultraviolet cross-linkable pressure sensitive adhesive sheet includes a (meth)acrylic copolymer of a monomer containing a (meth)acrylic acid ester having an ultraviolet cross-linkable site. The storage modulus of the pressure sensitive adhesive sheet before ultraviolet cross-linking is from 5.0×104 to 1.0×106 Pa at 30° C. and 1 Hz and 5.0×104 Pa or less at 80° C. and 1 Hz. The storage modulus of the pressure sensitive adhesive sheet after ultraviolet cross-linking is 1.0×103 Pa or more at 130° C. and 1 Hz.
    Type: Application
    Filed: March 7, 2011
    Publication date: December 27, 2012
    Inventors: Toshihiro Suwa, Shogo Sakakibara, Sotaro Endo, Saori Ueda, Shunsuke Suzuki