Patents by Inventor Sotaro Endo

Sotaro Endo 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).

  • Free-radical polymerization methods and articles thereby
    Patent number: 10344169
    Abstract: A method of curing a curable composition includes contacting the free-radically curable composition with the solid primer layer thereby causing at least partial curing of the curable composition. The solid primer layer includes a binder material, optional beta-dicarbonyl compound, and an organic peroxide. The curable composition includes at least one free-radically polymerizable compound, a polyvalent metal compound, and a quaternary ammonium halide. The method can be used for adhesive bonding of substrates and preparation of various articles.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: July 9, 2019
    Assignee: 3M Innovative Properties Company
    Inventors: Yoshihiko Tasaka, Zachary J. Thompson, Jun Fujita, Takahiro Kasahara, Sotaro Endo
  • Free-Radical Polymerization Methods and Articles Thereby
    Publication number: 20170247547
    Abstract: A method of curing a curable composition includes contacting the free-radically curable composition with the solid primer layer thereby causing at least partial curing of the curable composition. The solid primer layer includes a binder material, optional beta-dicarbonyl compound, and an organic peroxide. The curable composition includes at least one free-radically polymerizable compound, a polyvalent metal compound, and a quaternary ammonium halide. The method can be used for adhesive bonding of substrates and preparation of various articles.
    Type: Application
    Filed: September 28, 2015
    Publication date: August 31, 2017
    Inventors: Yoshihiko Tasaka, Zachary J. Thompson, Jun Fujita, Takahiro Kasahara, Sotaro Endo
  • 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
  • METHOD FOR MANUFACTURING AN IMAGE DISPLAY DEVICE
    Publication number: 20130220511
    Abstract: The present invention provides a method of manufacturing an image display device. The method includes providing a translucent sheet, a pressure-sensitive adhesive sheet, an image display unit and a liquid adhesive. The translucent sheet has a first principal surface, a second principal surface opposite the first principal surface, a first edge part and a second edge part opposite the first edge part. The pressure-sensitive adhesive sheet has a first principal surface and a second principal surface opposite the first principal surface. The image display unit has a display surface.
    Type: Application
    Filed: August 11, 2011
    Publication date: August 29, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Shunsuke Suzuki, Hikaru Takeda, Nami Kobori, Sotaro Endo
  • 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