Patents by Inventor Koji SHITARA

Koji SHITARA 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).

  • Patent number: 9657197
    Abstract: A pressure-sensitive adhesive of the invention include a (meth)acryl-based polymer obtained by polymerization of a monomer component including 30 to 99.5% by weight of an alkyl (meth)acrylate having an alkyl group of 10 to 18 carbon atoms at an ester end and 0.5 to 50% by weight of a cyclic nitrogen-containing monomer. The pressure-sensitive adhesive has a satisfactory level of adhesive performance and can form a pressure-sensitive adhesive layer with a lower dielectric constant and reliable moisture resistance.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: May 23, 2017
    Assignee: NITTO DENKO CORPORATION
    Inventors: Masatsugu Higashi, Kiyoe Shigetomi, Koji Shitara, Akiko Tanaka, Katsuhiko Kamiya, Azusa Iseki
  • Patent number: 9580624
    Abstract: The present invention realizes a display device or input device having excellent ultraviolet protection property for the touch panel, display element or the like, while retaining optical characteristics, even when a small amount of or no optical film is used. The pressure-sensitive adhesive sheet of the present invention has a total light transmittance of 85% or more, a light transmittance at a wavelength of 380 nm of 5% or less, and a haze of 3% or less. The pressure-sensitive adhesive sheet preferably includes a pressure-sensitive adhesive layer containing an acrylic polymer and a triazine-based ultraviolet absorber.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: February 28, 2017
    Assignee: NITTO DENKO CORPORATION
    Inventors: Koji Shitara, Hiroko Ikenaga, Hiroaki Kishioka
  • Publication number: 20170002235
    Abstract: A pressure-sensitive adhesive of the invention include a (meth)acryl-based polymer obtained by polymerization of a monomer component including 30 to 99.5% by weight of an alkyl (meth)acrylate having an alkyl group of 10 to 18 carbon atoms at an ester end and 0.5 to 50% by weight of a cyclic nitrogen-containing monomer. The pressure-sensitive adhesive has a satisfactory level of adhesive performance and can form a pressure-sensitive adhesive layer with a lower dielectric constant and reliable moisture resistance.
    Type: Application
    Filed: September 15, 2016
    Publication date: January 5, 2017
    Applicant: NITTO DENKO CORPORATION
    Inventors: Masatsugu HIGASHI, Kiyoe SHIGETOMI, Koji SHITARA, Akiko TANAKA, Katsuhiko KAMIYA, Azusa ISEKI
  • Publication number: 20150197670
    Abstract: The present invention realizes a display device or input device having excellent ultraviolet protection property for the touch panel, display element or the like, while retaining optical characteristics, even when a small amount of or no optical film is used. The pressure-sensitive adhesive sheet of the present invention has a total light transmittance of 85% or more, a light transmittance at a wavelength of 380 nm of 5% or less, and a haze of 3% or less. The pressure-sensitive adhesive sheet preferably includes a pressure-sensitive adhesive layer containing an acrylic polymer and a triazine-based ultraviolet absorber.
    Type: Application
    Filed: March 26, 2015
    Publication date: July 16, 2015
    Applicant: NITTO DENKO CORPORATION
    Inventors: Koji SHITARA, Hiroko IKENAGA, Hiroaki KISHIOKA
  • Patent number: 9045670
    Abstract: The present invention realizes a display device or input device having excellent ultraviolet protection property for the touch panel, display element or the like, while retaining optical characteristics, even when a small amount of or no optical film is used. The pressure-sensitive adhesive sheet of the present invention has a total light transmittance of 85% or more, a light transmittance at a wavelength of 380 nm of 5% or less, and a haze of 3% or less. The pressure-sensitive adhesive sheet preferably includes a pressure-sensitive adhesive layer containing an acrylic polymer and a triazine-based ultraviolet absorber.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: June 2, 2015
    Assignee: NITTO DENKO CORPORATION
    Inventors: Koji Shitara, Hiroko Ikenaga, Hiroaki Kishioka
  • Publication number: 20140248489
    Abstract: A pressure-sensitive adhesive of the invention include a (meth)acryl-based polymer obtained by polymerization of a monomer component including 30 to 99.5% by weight of an alkyl (meth)acrylate having an alkyl group of 10 to 18 carbon atoms at an ester end and 0.5 to 50% by weight of a cyclic nitrogen-containing monomer. The pressure-sensitive adhesive has a satisfactory level of adhesive performance and can form a pressure-sensitive adhesive layer with a lower dielectric constant and reliable moisture resistance.
    Type: Application
    Filed: September 12, 2012
    Publication date: September 4, 2014
    Applicant: NITTO DENKO CORPORATION
    Inventors: Masatsugu Higashi, Kiyoe Shigetomi, Koji Shitara, Akiko Tanaka, Katsuhiko Kamiya, Azusa Iseki
  • Publication number: 20140243472
    Abstract: Provided is a surface protective film including, as an outermost layer, a pressure-sensitive adhesive layer containing a urethane-based pressure-sensitive adhesive as a main component, the surface protective film allowing the contamination of an adherend to be extremely suppressed, and being preferably excellent in wettability and reworkability. The surface protective film of the present invention includes, as an outermost layer, a pressure-sensitive adhesive layer containing, as a main component, a urethane-based pressure-sensitive adhesive containing a polyurethane-based resin; and when a pressure-sensitive adhesive layer side of the surface protective film is attached to a glass plate at 50° C. for 10 days and then the surface protective film is peeled from the glass plate, a residual adhesive strength on the peeled surface side of the glass plate is 3.0 N/19 mm or more.
    Type: Application
    Filed: February 11, 2014
    Publication date: August 28, 2014
    Applicant: NITTO DENKO CORPORATION
    Inventors: Souya JO, Koji SHITARA, Noritsugu DAIGAKU, Tadatoshi NAKANISHI, Shou UCHIDA, Shogo SASAKI, Ryohei SAWAZAKI
  • Publication number: 20130251990
    Abstract: A pressure-sensitive adhesive of the invention includes a (meth)acryl-based polymer obtained by polymerization of a monomer component including: an alkyl(meth)acrylate (a1) having a branched alkyl group of 8 to 24 carbon atoms at an ester end; and an alkyl(meth)acrylate (a2) having a linear alkyl group of 8 to 24 carbon atoms at an ester end. The pressure-sensitive adhesive can has a satisfactory level of adhesive performance and can form a pressure-sensitive adhesive layer with a lower dielectric constant.
    Type: Application
    Filed: March 20, 2013
    Publication date: September 26, 2013
    Applicant: NITTO DENKO CORPORATION
    Inventors: Masatsugu HIGASHI, Koji SHITARA, Akiko TANAKA, Katsuhiko KAMIYA