Patents by Inventor Tomoaki Uchiya

Tomoaki Uchiya 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).

  • Publication number: 20240309245
    Abstract: An adhesive sheet can ensure favorable ease of insertion even when inserted and used into a narrow space, and can also favorably exhibit various characteristics during or after heating. An adhesive sheet includes a first adhesive layer formed of an adhesive composition containing an epoxy resin having a softening point of 50° C. or higher and a thermal curing agent; and a second adhesive layer that has tackiness and is foamed and cured by heat. An outermost layer of the adhesive sheet is formed of the first adhesive layer, and the adhesive sheet has a plurality of convex structures on a surface on a side of the outermost layer.
    Type: Application
    Filed: June 17, 2022
    Publication date: September 19, 2024
    Inventors: Guanqiao LI, Tomoaki Uchiya
  • Publication number: 20230236286
    Abstract: A radio wave reflection reducing sheet provided with a laminate having a first primary surface and a second primary surface is disclosed. The laminate has: a first resin foam layer having a thickness from 0.05 to 3.00 mm and a density from 0.10 to 0.85 g/cm3, and a second resin foam layer having a thickness from 0.05 to 3.00 mm and a density from 0.20 to 0.90 g/cm3. The density of the second resin foam layer is greater than the density of the first resin foam layer. The first resin foam layer and the second resin foam layer are disposed in this order from the first primary surface side.
    Type: Application
    Filed: March 16, 2021
    Publication date: July 27, 2023
    Inventors: Masataka Shinagawa, Tomoaki Uchiya, Koji Hishitani, Naoyuki Toriumi, Masaaki Takeda
  • Publication number: 20230131701
    Abstract: An adhesive sheet is a thermally expandable and thermosetting adhesive sheet including a substrate and a first layer provided on at least one surface of the substrate. The first layer contains an adhesive portion having an adhesive composition and thermally expandable first particles contained within the adhesive composition, and second particles provided in the adhesive portion and having different materials from those of the first particles, and each of the second particles is larger than each of the first particles.
    Type: Application
    Filed: January 26, 2021
    Publication date: April 27, 2023
    Inventors: Tomoaki Uchiya, Guanqiao Li
  • Publication number: 20220259465
    Abstract: A core-sheath filament having a) a core that is a thermally conductive pressure-sensitive adhesive particles and b) a non-tacky, thermoplastic sheath is provided. The thermally conductive pressure-sensitive adhesive in the core includes a (meth)acrylate-based polymeric material and thermally conductive particles. Additionally, methods of making the core-sheath filament and methods of using the core-sheath filament to print a thermally conductive pressure-sensitive adhesive are described.
    Type: Application
    Filed: August 6, 2020
    Publication date: August 18, 2022
    Inventors: Alexander J. Kugel, Mario A. Perez, Sebastian Goris, Matthew H. Frey, Ross E. Behling, Mark E. Napierala, Thomas Q. Chastek, Jacob D. Young, Shaun M. West, Tomoaki Uchiya
  • Publication number: 20220020663
    Abstract: The production method for a thermally conductive molding includes: preparing a first film that is disposed on a mold having a three-dimensional shape so as to conform to the three-dimensional shape, and that has a first layer and a second layer that is releasably adhered to the first layer on a surface opposite to the mold of the first layer; disposing a curable composition including a thermally conductive material and a (meth)acrylic monomer on the first film; disposing a second film on the curable composition and sandwiching the curable composition between the first film and the second film; radically polymerizing the (meth)acrylic monomer in the curable composition to form a cured product of the curable composition between the first film and the second film; and releasing the first layer from the second layer to obtain a thermally conductive molding including the second layer, the cured product, and the second film.
    Type: Application
    Filed: December 9, 2019
    Publication date: January 20, 2022
    Inventors: Tomoaki Uchiya, Naoyuki Toriumi, Eisuke Yamaguchi, Guanqiao Li
  • Publication number: 20210024790
    Abstract: A resin composition, including a radical-polymerizable compound, a cation-polymerizable compound, a photo radical photopolymerization initiator, and a photo cation photopolymerization initiator; wherein the resin composition has a range of wavelengths so that one of the photo radical photopolymerization initiator and the photo cation photopolymerization initiator has a molar absorption coefficient of 1 or greater, and the other has a molar absorption coefficient of 0.1 or less. A gap-filling adhesive which is a partially polymerized product of the resin composition. The gap-filling adhesive is capable of easily filling the gap in the body to be adhered.
    Type: Application
    Filed: February 5, 2019
    Publication date: January 28, 2021
    Inventors: Kenji Wakamatsu, Tomoaki Uchiya
  • Publication number: 20190329455
    Abstract: Provided is a three-dimensionally shaped thermally conductive molded body and manufacturing method thereof, that can ensure sufficient gap filling properties and contact surface area with regard to heat dissipating components such as heat sinks and the like and heat generating components such as IC chips and the like, without adding excessive stress to these components. The three-dimensionally shaped thermally conductive molded body of a first aspect of the present disclosure contains a thermally conductive material and a silicone-based material, the molded body has a substantially flat bottom surface, and a three-dimensional shaped part located on the inside of the bottom surface, and the height of the three-dimensionally shaped part that is higher than the bottom surface differs in at least two locations.
    Type: Application
    Filed: October 31, 2017
    Publication date: October 31, 2019
    Inventors: Tomoaki Uchiya, Ryo Sakaguchi, Tadahiro Takashina, Masaru Nezu, Takashi Takenouchi
  • Patent number: 6794030
    Abstract: The invention is directed toward a heat conductive sheet that has flexibility, can follow a specific shape such as ruggedness and curvature, which can therefore insure high adhesion and, at the same time, excellent heat releasing property, is free from the occurrence of wrinkle and rupture or elongation, even when the thickness is decreased, and is excellent in formability of sheet formation and in bonding work. Such heat conductive sheet includes a substrate and a heat conductive resin layer applied to at least one surface of the substrate, wherein the heat conductive resin layer is constituted as to contain a binder resin and a heat conductive filler dispersed in the binder resin.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: September 21, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Mitsuhiko Okada, Tomoaki Uchiya
  • Publication number: 20030207128
    Abstract: A thermally conductive sheet comprising a heat-conductive resin layer. The heat-conductive resin layer comprises a binder resin comprising a wax, and a heat-conductive filler dispersed in the binder resin. The thermally conductive sheet has flexibility, and is conformable to a specific shape such as uneven or curved face, thereby ensuring high adhesion, and at the same time, ensuring high heat conductivity without causing any defect ascribable to the addition of a heat-conductive filler.
    Type: Application
    Filed: September 20, 2002
    Publication date: November 6, 2003
    Inventors: Tomoaki Uchiya, Yoshinao Yamazaki, Mitsuhiko Okada
  • Patent number: 6579606
    Abstract: To provide a reflection sheet, using a thinner, lower stiffness film, for use in surrounding a straight tube type fluorescent lamp in an edge type liquid crystal display panel back light device, which reflection sheet can realize a higher brightness of the back light device. A reflection sheet comprising: a film support having a thickness of 25 to 50 &mgr;m and, applied on a surface of the support, a reflective paint coat comprised of a mixture of a resin binder of a (meth)acrylate copolymer with a small particle balloon having a particle diameter of 0.05 to 10 &mgr;m and an inside empty diameter to particle diameter ratio of 0.2 to 0.9.
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: June 17, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Tomoaki Uchiya, Koh Shiota, Mitsuhiko Okada, Hideki Nagamatsu, Takaaki Nanba
  • Publication number: 20010010858
    Abstract: This disclosure provides a concrete product having a retroreflective surface with uniform and sharp edge which is produced easily with shortened time without using a special equipment or process as well as chemicals which need special attention in handling. The disclosure also establishes a method to obtain the substrate consisting of a concrete-based material and a retroreflective element dispersed and embedded at least in a surface portion of said substrate, at least a part of which element is exposed from a surface of said substrate and the said retroreflective element being exposed from the substrate surface as a result of partially retarded hardening of the said concrete-based material and removal of the thus produced, unhardened concrete material.
    Type: Application
    Filed: December 5, 2000
    Publication date: August 2, 2001
    Inventors: Tomoaki Uchiya, Satoshi Nakajima, Touta Adachi