Patents by Inventor Susumu Nakagama

Susumu Nakagama 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: 8040062
    Abstract: Provided is an electroconductive laminate having a substrate and an electroconductive film formed on the substrate, wherein the electroconductive film has a multilayer structure having an oxide layer and a metal layer alternately laminated from the substrate side in a total layer number of (2n+1) (wherein n is an integer of at least 1); the oxide layer predominantly contains zinc oxide and titanium oxide having a refractive index of at least 2.3; the oxide layer has an atomic ratio of titanium to a total amount of titanium and zinc of 15-50 atomic %; and the metal layer predominantly contains silver or a silver alloy. Also provided is a process for producing the electroconductive laminate.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: October 18, 2011
    Assignee: Asahi Glass Company, Limited
    Inventors: Tamotsu Morimoto, Hideaki Miyazawa, Masahiro Fusen, Koichi Kanda, Susumu Nakagama
  • Patent number: 7740946
    Abstract: To provide an electroconductive laminate excellent in electrical conductivity and visible light transparency, an electromagnetic wave shielding film for a plasma display, and a protective plate for a plasma display having excellent electromagnetic wave shielding properties, a broad transmission/reflection band and a high visible light transmittance. An electroconductive laminate 10 comprising a substrate 11, and an electroconductive film 12 having a three-layer structure having a first oxide layer 12a, a metal layer 12b and a second oxide layer 12c laminated sequentially from the substrate 11 side, or having a 3×n layer structure (wherein n is an integer of at least 2) having the above three-layer structure repeated, wherein the first oxide layer 12a contains “zinc oxide” and “titanium oxide or niobium oxide”, the metal layer 12b is a layer containing silver, and the second oxide layer 12c contains a mixture of zinc oxide and aluminum oxide, or the like.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: June 22, 2010
    Assignee: Asahi Glass Company, Limited
    Inventors: Tamotsu Morimoto, Masato Kawasaki, Makoto Hiramoto, Koichi Kanda, Susumu Nakagama
  • Publication number: 20090130418
    Abstract: Providing a tin oxide target suitable for the formation of a transparent conductive film by DC sputtering method, DC pulse sputtering method or AC sputtering method. A sputtering target which is used for forming a transparent conductive film by a sputtering method, comprising tin oxide as the main component, and at least one element selected from the A dopant group consisting of zinc, niobium, titanium, magnesium, aluminum and zirconium and at least one element selected from the B dopant group consisting of tungsten, tantalum and molybdenum, as dopants.
    Type: Application
    Filed: December 8, 2008
    Publication date: May 21, 2009
    Applicant: ASAHI GLASS COMPANY LIMITED
    Inventors: Hidefumi ODAKA, Akira MITSUI, Susumu NAKAGAMA
  • Publication number: 20070298265
    Abstract: To provide an electroconductive laminate excellent in electrical conductivity and visible light transparency, an electromagnetic wave shielding film for a plasma display, and a protective plate for a plasma display having excellent electromagnetic wave shielding properties, a broad transmission/reflection band and a high visible light transmittance. An electroconductive laminate 10 comprising a substrate 11, and an electroconductive film 12 having a three-layer structure having a first oxide layer 12a, a metal layer 12b and a second oxide layer 12c laminated sequentially from the substrate 11 side, or having a 3×n layer structure (wherein n is an integer of at least 2) having the above three-layer structure repeated, wherein the first oxide layer 12a contains “zinc oxide” and “titanium oxide or niobium oxide”, the metal layer 12b is a layer containing silver, and the second oxide layer 12c contains a mixture of zinc oxide and aluminum oxide, or the like.
    Type: Application
    Filed: August 16, 2007
    Publication date: December 27, 2007
    Applicants: ASAHI GLASS COMPANY., LTD., ASAHI GLASS CERAMICS COMPANY, LTD.
    Inventors: Tamotsu Morimoto, Masato Kawasaki, Makoto Hiramoto, Koichi Kanda, Susumu Nakagama
  • Publication number: 20070224432
    Abstract: To provide an electroconductive laminate having a broad transmission/reflection band and having excellent electrical conductivity (electromagnetic wave shielding properties), visible light transparency and near infrared shielding properties, and an electromagnetic wave shielding film for a plasma display and a protective plate for a plasma display. An electroconductive laminate 10 comprising a substrate 11 and an electroconductive film 12 formed on the substrate 11, wherein the electroconductive film 12 has a multilayer structure having an oxide layer 12a and a metal layer 12b alternately laminated from the substrate 11 side in a total layer number of (2n+1) (wherein n is an integer of at least 1), the oxide layer 12a contains zinc oxide and a high refractive index metal oxide having a refractive index of at least 2.
    Type: Application
    Filed: May 30, 2007
    Publication date: September 27, 2007
    Applicant: Asahi Glass Company, Limited
    Inventors: Tamotsu Morimoto, Hideaki Miyazawa, Masahiro Fusen, Koichi Kanda, Susumu Nakagama
  • Patent number: 6800182
    Abstract: A sputtering target is provided that includes SiC and metallic Si and has an atomic ratio of C to Si of from 0.5 to 0.95 and a density of from 2.75×103 kg/m3 to 3.1×103 kg/m3. The sputtering target is capable of forming at high speed a film that contains SiO2 as the main component and has a low refractive index. The sputtering target can be produced by a process in which a molded product of SiC is impregnated with molten Si.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: October 5, 2004
    Assignee: Asahi Glass Company, Limited
    Inventors: Akira Mitsui, Hiroshi Ueda, Kouichi Kanda, Susumu Nakagama
  • Publication number: 20020117785
    Abstract: A sputtering target which comprises SiC and metallic Si and has an atomic ratio of C to Si of from 0.5 to 0.95 and a density of from 2.75×103 kg/m3 to 3.1×103 kg/m3 and which is capable of forming a film comprising SiO2 as the main component and having a low refractive index at a high speed; a process for its production; and a film-forming method.
    Type: Application
    Filed: April 15, 2002
    Publication date: August 29, 2002
    Applicant: ASAHI GLASS COMPANY LIMITED
    Inventors: Akira Mitsui, Hiroshi Ueda, Kouichi Kanda, Susumu Nakagama
  • Patent number: 6248291
    Abstract: A process for producing sputtering targets, which comprises molding a mixture of a powder of a high-melting substance having a melting point of 900° C. or above with a powder of a low-melting metal having a melting point of 700° C. or below at a temperature below the melting point of the low-melting metal under heat and pressure.
    Type: Grant
    Filed: December 12, 1997
    Date of Patent: June 19, 2001
    Assignee: Asahi Glass Company Ltd.
    Inventors: Susumu Nakagama, Masao Higeta, Atsushi Hayashi