Patents by Inventor Koji TSUCHIBUCHI

Koji TSUCHIBUCHI 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: 10221339
    Abstract: A pressure sensitive adhesive sheet including, on a substrate or a release material, a resin layer including a resin part (X) containing a resin as a main component, and a particle part (Y) consisting of fine particles and having a surface (?) having pressure sensitive adhesiveness and one or more concave portions. When the surface (?) of the resin layer is adhered to a smooth surface of a light transmissive adherend to give a laminate, the areal ratio (S1) of the attached area adhered to the smooth surface to the surface (?) is 10 to 95% at 23° C. and 50% RH, and the area increase rate {[(S2?S1)/S1]×100} is ?10 to 20% after heating of the smooth surface by statically leaving the laminate at 80° C. for 30 minutes.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: March 5, 2019
    Assignee: LINTEC CORPORATION
    Inventors: Satoshi Kawada, Kiichiro Kato, Kazue Uemura, Yumiko Amino, Shigeru Saito, Koji Tsuchibuchi, Takamasa Kase
  • Publication number: 20180264489
    Abstract: Provided are a pressure sensitive adhesive sheet including, on a substrate, a resin layer containing a resin which is a resin layer containing a resin part (X) containing a resin as a main component and a particle part (Y) consisting of fine particles, at least a surface (?) of the resin layer on the side opposite to the side thereof on which the substrate is provided, having pressure sensitive adhesiveness, wherein a bending stress coefficient k in the MD direction of the substrate is 20 N·mm or less, a 10% elongation strength in the MD direction thereof is 260 N/15 mm or less, and concave portions satisfying specified requirements are included on the surface (?) of the resin layer; and a method for producing the pressure sensitive adhesive sheet.
    Type: Application
    Filed: September 27, 2016
    Publication date: September 20, 2018
    Applicant: LINTEC CORPORATION
    Inventors: Koji TSUCHIBUCHI, Kazue UEMURA, Kiichiro KATO
  • Publication number: 20180265749
    Abstract: A pressure sensitive adhesive sheet including, on a substrate or a release material, a resin layer, at least a surface (?) of the resin layer on the opposite to the side on which the substrate or release material is provided having pressure sensitive adhesiveness, wherein a concave portion and a flat face exist on the surface (?) of the resin layer, and a width of the concave portion observed from the side of the surface (?) is non-uniform, and in a region (D) of 8 mm in length×10 mm in width as freely-selected on the surface (?), a concave portion having an area of 70 to 99.99% relative to 100% of a total area of the concave portions existing in the region (D) exists.
    Type: Application
    Filed: September 27, 2016
    Publication date: September 20, 2018
    Applicant: LINTEC CORPORATION
    Inventors: Kazue UEMURA, Kiichiro KATO, Yumiko AMINO, Koji TSUCHIBUCHI, Takamasa KASE, Yusuke MATSUOKA
  • Publication number: 20170210949
    Abstract: A pressure sensitive adhesive sheet containing, on a substrate or a release material, a resin layer that includes a resin part (X) containing a resin as a main component, and a particle part (Y) consisting of fine particles, at least a surface (?) of the resin layer being opposite to the side thereof on which the substrate or the release material is provided having pressure sensitive adhesiveness, wherein one or more concave portions exist on the surface (?), and when the surface (?) of the resin layer is adhered to a smooth surface of a light transmissive adherend having a smooth surface to give a laminate, the pressure sensitive adhesive sheet satisfies the following requirements (1) and (2). Requirement (1): in an environment at 23° C. and 50% RH, the areal ratio (S1) of the attached area against the smooth surface of the light transmissive adherend to the surface (?) before heating is 10 to 95%. Requirement (2): after the laminate is statically left in an environment at 80° C.
    Type: Application
    Filed: April 2, 2015
    Publication date: July 27, 2017
    Applicant: LINTEC CORPORATION
    Inventors: Satoshi KAWADA, Kiichiro KATO, Kazue UEMURA, Yumiko AMINO, Shigeru SAITO, Koji TSUCHIBUCHI, Takamasa KASE
  • Publication number: 20170174947
    Abstract: Provided is a pressure sensitive adhesive sheet containing, on a substrate or a release material, a resin layer formed of a multilayer structure of three or more layers including a fine particle-containing layer that contains fine particles in an amount of 15% by mass or more, at least a surface (?) of the resin layer being opposite to the side thereof on which the substrate or the release material is provided having pressure sensitive adhesiveness, wherein the fine particle-containing layer is formed not as the outermost layer of the resin layer, and one or more concave portions exist on the surface (?) and the shapes of the one or more concave portions have irregular shapes. When attached to an adherend, the pressure sensitive adhesive sheet can exhibit excellent air escape property of readily removing air accumulation which may be formed, good blister resistance and good pressure sensitive adhesion characteristics.
    Type: Application
    Filed: April 2, 2015
    Publication date: June 22, 2017
    Applicant: LINTEC CORPORATION
    Inventors: Kiichiro KATO, Kazue UEMURA, Yumiko AMINO, Shigeru SAITO, Koji TSUCHIBUCHI, Yoshitomo ONO
  • Publication number: 20170174943
    Abstract: Provided is a pressure sensitive adhesive sheet containing a resin layer on a substrate or a release material, at least a surface (?) of the resin layer being opposite to the side thereof on which the substrate or the release material is provided having pressure sensitive adhesiveness, wherein one or more concave portions formed not by transferring an emboss pattern exist on the surface (?).
    Type: Application
    Filed: April 2, 2015
    Publication date: June 22, 2017
    Applicant: LINTEC CORPORATION
    Inventors: Kiichiro KATO, Kazue UEMURA, Yumiko AMINO, Shigeru SAITO, Koji TSUCHIBUCHI, Masaru MATSUSHIMA