Patents by Inventor Takatoshi Matsumura

Takatoshi Matsumura 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: 8889570
    Abstract: Disclosed is a light-transmitting electromagnetic-shielding laminate, which is characterized in that two or more layers including an electromagnetic-shielding layer are arranged in layers using a (meth)acrylate adhesive composition which contains a (meth)acrylate monomer, a (meth)acrylate oligomer and at least one member selected from the group consisting of acrylic amide derivatives, silane compounds and organophosphorus compounds. Also disclosed is a light-transmitting radio wave absorber which is characterized in that a resistive layer, a dielectric spacer and a reflective layer are arranged in layers using a (meth)acrylate adhesive composition which contains a (meth)acrylate monomer, a (meth)acrylate oligomer and at least one member selected from the group consisting of acrylic amide derivatives, silane compounds and organophosphorus compounds.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: November 18, 2014
    Assignee: Mitsubishi Gas Chemical Company, Inc
    Inventors: Takatoshi Matsumura, Noboru Ohtani, Yoshiyuki Masuda, Masahiko Ishikawa, Yoshiya Kimura, Kyoko Nishizaki, Yoshitaka Masuda
  • Patent number: 8815373
    Abstract: The present invention provides a method for manufacturing a laminate, comprising the steps of laminating two or more layers of polycarbonate resin film and/or sheet using a (meth)acrylate-based adhesive composition containing a (A) (meth)acrylate monomer, a (B) meth(acrylate) olygomer, an (C) acrylamide derivative, and a (D) silane compound and/or an (E) organophosphorus compound to form a laminate having a thickness of 0.1 mm to 30 mm; heating the laminate at 130° C. to 185° C. so that a temperature difference between a top surface and a bottom surface of the laminate is within 20° C.; and bending the post-heating laminate into a curved shape having a radius of curvature of 10 mm or greater.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: August 26, 2014
    Assignees: Mitsubishi Gas Chemical Company, Inc., MGC Filsheet Co., Ltd.
    Inventors: Takatoshi Matsumura, Yoshiya Kimura
  • Publication number: 20140044927
    Abstract: The present invention provides a method for manufacturing a laminate, comprising the steps of laminating two or more layers of polycarbonate resin film and/or sheet using a (meth)acrylate-based adhesive composition containing a (A) (meth)acrylate monomer, a (B) meth(acrylate) olygomer, an (C) acrylamide derivative, and a (D) silane compound and/or an (E) organophosphorus compound to form a laminate having a thickness of 0.1 mm to 30 mm; heating the laminate at 130° C. to 185° C. so that a temperature difference between a top surface and a bottom surface of the laminate is within 20° C.; and bending the post-heating laminate into a curved shape having a radius of curvature of 10 mm or greater.
    Type: Application
    Filed: October 16, 2013
    Publication date: February 13, 2014
    Applicants: MGC FILSHEET CO., LTD., MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Takatoshi Matsumura, Yoshiya Kimura
  • Patent number: 8585860
    Abstract: The present invention provides a method for manufacturing a laminate, comprising the steps of laminating two or more layers of polycarbonate resin film and/or sheet using a (meth)acrylate-based adhesive composition containing a (A) (meth)acrylate monomer, a (B) meth(acrylate) olygomer, an (C) acrylamide derivative, and a (D) silane compound and/or an (E) organophosphorus compound to form a laminate having a thickness of 0.1 mm to 30 mm; heating the laminate at 130° C. to 185° C. so that a temperature difference between a top surface and a bottom surface of the laminate is within 20° C.; and bending the post-heating laminate into a curved shape having a radius of curvature of 10 mm or greater.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: November 19, 2013
    Assignees: Mitsubishi Gas Chemical Company, Inc., MGC Filsheet Co., Ltd.
    Inventors: Takatoshi Matsumura, Yoshiya Kimura
  • Patent number: 8063391
    Abstract: The present invention provides a light-transmitting electromagnetic wave-shielding material for use in displays or in-vehicle panels each having a polarizing plate or a retardation plate, wherein the light-transmitting electromagnetic wave-shielding material undergoes no generation of light interference fringes and is satisfactory in visibility even through sunglasses, goggles, glare-proof panels or glare-proof window materials having polarizing capability. By using unstretched light-transmitting organic polymer materials low in molecular orientation or small in molecular orientation unevenness as the base substrate of an electromagnetic wave-shielding layer, the light-transmitting electromagnetic wave-shielding material excellent in light interference fringe prevention capability can be obtained.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: November 22, 2011
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Takatoshi Matsumura, Masahiko Ishikawa, Yoshitaka Masuda, Noboru Ohtani, Yoshiya Kimura, Yoshiyuki Masuda, Noriyuki Kato
  • Publication number: 20110070448
    Abstract: The present invention provides a method for manufacturing a laminate, comprising the steps of laminating two or more layers of polycarbonate resin film and/or sheet using a (meth)acrylate-based adhesive composition containing a (A) (meth)acrylate monomer, a (B) meth(acrylate) olygomer, an (C) acrylamide derivative, and a (D) silane compound and/or an (E) organophosphorus compound to form a laminate having a thickness of 0.1 mm to 30 mm; heating the laminate at 130° C. to 185° C. so that a temperature difference between a top surface and a bottom surface of the laminate is within 20° C.; and bending the post-heating laminate into a curved shape having a radius of curvature of 10 mm or greater.
    Type: Application
    Filed: May 7, 2009
    Publication date: March 24, 2011
    Inventors: Takatoshi Matsumura, Yoshiya Kimura
  • Publication number: 20100147578
    Abstract: Disclosed is a light-transmitting electromagnetic-shielding laminate, which is characterized in that two or more layers including an electromagnetic-shielding layer are arranged in layers using a (meth)acrylate adhesive composition which contains a (meth)acrylate monomer, a (meth)acrylate oligomer and at least one member selected from the group consisting of acrylic amide derivatives, silane compounds and organophosphorus compounds. Also disclosed is a light-transmitting radio wave absorber which is characterized in that a resistive layer, a dielectric spacer and a reflective layer are arranged in layers using a (meth)acrylate adhesive composition which contains a (meth)acrylate monomer, a (meth)acrylate oligomer and at least one member selected from the group consisting of acrylic amide derivatives, silane compounds and organophosphorus compounds.
    Type: Application
    Filed: March 11, 2008
    Publication date: June 17, 2010
    Inventors: Takatoshi Matsumura, Noboru Ohtani, Yoshiyuki Masuda, Masahiko Ishikawa, Yoshiya Kimura, Kyoko Nishizaki, Yoshitaka Masuda
  • Publication number: 20080302981
    Abstract: The present invention provides a light-transmitting electromagnetic wave-shielding material for use in displays or in-vehicle panels each having a polarizing plate or a retardation plate, wherein the light-transmitting electromagnetic wave-shielding material undergoes no generation of light interference fringes and is satisfactory in visibility even through sunglasses, goggles, glare-proof panels or glare-proof window materials having polarizing capability. By using unstretched light-transmitting organic polymer materials low in molecular orientation or small in molecular orientation unevenness as the base substrate of an electromagnetic wave-shielding layer, the light-transmitting electromagnetic wave-shielding material excellent in light interference fringe prevention capability can be obtained.
    Type: Application
    Filed: June 3, 2008
    Publication date: December 11, 2008
    Inventors: Takatoshi Matsumura, Masahiko Ishikawa, Yoshitaka Masuda, Noboru Ohtani, Yoshiya Kimura, Yoshiyuki Masuda, Noriyuki Kato
  • Patent number: 6211268
    Abstract: A polyoxymethylene resin composition comprising: (A) 100 parts by weight of a polyoxymethylene copolymer; (B) 0.01 to 7 parts by weight of an amine-substituted triazine compound; and (C) 0.01 to 5 parts by weight of (C-1) polyethylene glycol having an average molecular weight of 10,000 or more and/or (C-2) modified polyolefin wax having an acidic group with an acid value of 0.5 to 60 mg-KOH/g. According to the present invention, there can be provided a polyoxymethylene resin molded product which has low shrink anisotropy, excellent thermal stability and dimensional stability.
    Type: Grant
    Filed: May 7, 1999
    Date of Patent: April 3, 2001
    Assignee: Mitsubishi Gas Chemical Co Inc
    Inventors: Takatoshi Matsumura, Chiharu Nishizawa, Hiroshi Mimura, Hiroshi Yada, Kazuo Kurashige