Patents by Inventor Tatsuya Tsukagoshi

Tatsuya Tsukagoshi 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: 20130078406
    Abstract: A sheet product including a sheet-shaped pressure-sensitive adhesive sheet having pressure-sensitive adhesiveness; a base separator disposed on one surface side of the sheet so as to be peelable from the sheet, and supporting the sheet and serving as a base; and a protective separator disposed on the other surface side of the sheet so as to be peelable from the sheet, wherein the peel force between the sheet and the base separator is smaller than the peel force between the sheet and the protective separator; and a cut is given to the sheet and the protective separator in the direction of the thickness of the sheet such that the sheet and the protective separator can be peeled from the base separator as a separate piece in the state where the sheet and the protective separator are layered.
    Type: Application
    Filed: May 27, 2011
    Publication date: March 28, 2013
    Applicant: NITTO DENKO CORPORATION
    Inventors: Akira Shouji, Tatsuya Tsukagoshi, Kenji Furuta, Midori Tojo, Yoshio Terada
  • Publication number: 20130041093
    Abstract: An object is to provide a thermally conductive adhesive sheet capable of making a heat generating body and a heat radiating body adhere to each other easily and with a sufficient adhesive force. Provided is a thermally conductive adhesive sheet including an adhesive agent layer formed by molding a thermally conductive adhesive agent composition including an acrylic polymer component into a sheet-like shape, wherein the adhesive force at the time of 180° peeling is 1 N/20 mm or more and the contact thermal resistance is 0.6 cm2·K/W or less when the adhesive sheet is pressure bonded to an adherend with a pressure of 200 kPa.
    Type: Application
    Filed: May 13, 2011
    Publication date: February 14, 2013
    Applicant: NITTO DENKO CORPORATION
    Inventors: Junichi Nakayama, Tatsuya Tsukagoshi, Yoshio Terada, Akira Shouji, Kenji Furuta, Midori Tojo
  • Publication number: 20120301716
    Abstract: Provided is a thermally-conductive double-sided adhesive sheet capable of improving the workability when adherends are bonded to or detached from each other. The thermally-conductive double-sided adhesive sheet includes an adhesive agent layer formed of a thermally-conductive adhesive agent composition formed into a sheet, which composition including a thermally-conductive material and an acrylic polymer component, wherein a strong adhesive agent layer forming one side and a weak adhesive agent layer forming the other side of the thermally-conductive double-sided adhesive sheet are laminated in such a way that the adhesive force of the one side of the thermally-conductive double-sided adhesive sheet to an adherend is stronger than the adhesive force of the other side of the thermally-conductive double-sided adhesive sheet to the adherend.
    Type: Application
    Filed: January 24, 2011
    Publication date: November 29, 2012
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yoshio Terada, Junichi Nakayama, Kenji Furuta, Akira Shouji, Tatsuya Tsukagoshi, Midori Tojo
  • Publication number: 20110117362
    Abstract: There is provided a pressure-sensitive adhesive tape that can exhibit good adhesion property and prevent display unevenness, which would otherwise be caused by deformation of the adherend fixed with it, even when exposed to environmental changes such as increases and decreases in temperature. The pressure-sensitive adhesive tape includes a pressure-sensitive adhesive layer comprising a pressure-sensitive adhesive composition containing a (meth)acryl-based polymer that comprises a monomer component of at least an alkyl (meth)acrylate ester having an alkyl group of 4 to 12 carbon atoms, wherein the pressure-sensitive adhesive composition contains 100 parts by weight of the (meth)acryl-based polymer and 5 to 50 parts by weight of a rosin resin, and the pressure-sensitive adhesive layer has a stress-strain curve with a maximum stress of 1.2 to 3.5 N/mm2 and a maximum elongation of 700 to 1,300% at 0° C.
    Type: Application
    Filed: November 15, 2010
    Publication date: May 19, 2011
    Inventors: Noboru Yoshida, Tatsuya Tsukagoshi, Yoshikazu Soeda, Yutaka Tosaki, Junji Yokoyama
  • Publication number: 20110070430
    Abstract: A double-sided pressure-sensitive adhesive (PSA) sheet having a plastic film as a substrate is provided, with the property of corroding a metal not in contact therewith being suppressed. This PSA sheet has a PSA layer that uses a water-dispersed acrylic PSA composition on each side of the plastic film substrate. The PSA composition contains a water-dispersed acrylic polymer synthesized using a sulfur-containing chain transfer agent. The PSA sheet has the emission of sulfur-containing gas of 0.043 ?g or less per 1 cm2 surface area of the PSA sheet, when converted to SO42?, in a gas generation test under which the PSA sheet is heated at 85° C. for one hour.
    Type: Application
    Filed: September 23, 2010
    Publication date: March 24, 2011
    Applicant: NITTO DENKO CORPORATION
    Inventors: Mitsuyoshi SHIRAI, Akiko TAKAHASHI, Shouhei WADA, Toshihide SUZUKI, Kenichi YAMAMOTO, Tatsuya TSUKAGOSHI
  • Publication number: 20100330354
    Abstract: The present invention provides a pressure-sensitive adhesive tape capable of exhibiting excellent adhesive property, and of inhibiting deformation of an adherend fixed with this pressure-sensitive adhesive tape, even under a high temperature or low temperature environment. The pressure-sensitive adhesive tape is one having a pressure-sensitive adhesive layer including a pressure-sensitive adhesive composition containing a (meth)acrylic polymer, wherein the (meth)acrylic polymer is obtained by copolymerization of a monomer mixture containing, at least, 60 to 96% by weight of a (meth)acrylic acid alkyl ester having an alkyl group with 4 to 12 carbon atoms, 2 to 10% by weight of a carboxyl group-containing monomer, and 2 to 8% by weight of an ethylenically unsaturated monomer having no carboxyl group, whose homopolymer has a glass transition temperature of 50 to 190° C. as monomer components, and the pressure-sensitive adhesive layer has a gel fraction of 0 to 30% by weight.
    Type: Application
    Filed: June 23, 2010
    Publication date: December 30, 2010
    Inventors: Tatsuya Tsukagoshi, Yutaka Tosaki, Junji Yokoyama, Yoshikazu Soeda, Noboru Yoshida
  • Patent number: 5922989
    Abstract: An electronic part capable of preventing a flux from intruding thereinto without using a sealing material can be provided. In the electronic part 1, terminals 3 to be inserted through electrode holes of a circuit board are projected from a casing 1a. In the terminals 3, there are provided cut-in portions 8 extending to a space formed between the casing 1a and the circuit board when the terminals 3 are inserted through the electrode holes.
    Type: Grant
    Filed: September 6, 1996
    Date of Patent: July 13, 1999
    Assignee: Mitsuba Electric Manufacturing Co., Ltd.
    Inventors: Akimasa Tsunoda, Yuichi Nagase, Seiichi Katagiri, Shigeo Suzuki, Kiyohumi Nakayama, Kenji Hirota, Noboru Sato, Tatsuya Tsukagoshi