Patents by Inventor Nobuhiro Nakamura

Nobuhiro Nakamura 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: 20120194064
    Abstract: The present invention relates to a glass for a scattering layer of an organic LED element, which contains, in terms of mol % on the basis of oxides, 0˜20% of P2O5, 15˜60% of B2O3, 15˜28% of Bi2O3 and 20˜50% of ZnO, in which a value obtained by dividing the content of P2O5 by the content of ZnO is less than 0.48, the sum of the contents of P2O5 and B2O3 is 30˜60%, the content of P2O5 is 10% or less when the sum of the contents of P2O5 and B2O3 exceeds 50%, and the glass does not substantially contain lead (PbO or Pb3O4), Li2O, Na2O and K2O, except for those contained as impurities.
    Type: Application
    Filed: April 13, 2012
    Publication date: August 2, 2012
    Inventors: Naoya Wada, Nobuhiro Nakamura
  • Publication number: 20120194065
    Abstract: The present invention relates to an organic LED element sequentially including: a transparent substrate; a scattering layer; a first electrode; an organic layer; and a second electrode, in which the scattering layer includes a first glass material and a second glass material dispersed in the first glass material and having a different refractive index from the first glass material.
    Type: Application
    Filed: April 13, 2012
    Publication date: August 2, 2012
    Inventors: Yumiko AOKI, Naoya Wada, Nobuhiro Nakamura, Yasuko Osaki
  • Patent number: 8203169
    Abstract: To provide glass with which a sealing treatment can be carried out at a temperature of at most 400° C. and which does not deteriorate or change in quality for a long time. Glass comprising, as represented by mol % based on oxides, from 27 to 33% of P2O5, from 50 to 70% of SnO, from 0 to 10% of ZnO, from 0.5 to 5% of CaO and from 0 to 5% of B2O3.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: June 19, 2012
    Assignee: Asahi Glass Company, Limited
    Inventors: Syuji Matsumoto, Nobuhiro Nakamura, Naoya Wada, Yasuko Osaki
  • Publication number: 20120114375
    Abstract: An electrophotographic photosensitive member that can not easily cause charging lines even where it is an electrophotographic photosensitive member employing as a conductive layer a layer containing metal oxide particles is disclosed. Also disclosed are a process cartridge and an electrophotographic apparatus which have such an electrophotographic photosensitive member. The electrophotographic photosensitive member has a conductive layer which contains titanium oxide particles coated with tin oxide doped with phosphorus or tungsten.
    Type: Application
    Filed: September 3, 2010
    Publication date: May 10, 2012
    Applicant: Canon Kabushiki Kaisha
    Inventors: Atsushi Fujii, Haruyuki Tsuji, Hideaki Matsuoka, Kazuhisa Shida, Nobuhiro Nakamura
  • Patent number: 8174045
    Abstract: A glass-covered light-emitting element and a glass-covered light-emitting device are provided, which are covered with a glass having a low glass transition point and a thermal expansion coefficient close to that of the light-emitting element. The glass-covered light-emitting element includes a semiconductor light-emitting element having a principal surface, and a P2O5—ZnO—SnO type glass covering the principal surface of the semiconductor light-emitting element, and the glass consists essentially of, as represented by mol % based on the following oxides, from 20 to 45% of P2O5, from 20 to 50% of ZnO and from 20 to 40% of SnO, and the glass has a glass transition point of at least 290° C. and at most 450° C., and a thermal expansion coefficient of at most 105×10?7/° C.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: May 8, 2012
    Assignee: Asahi Glass Company, Limited
    Inventors: Syuji Matsumoto, Yasuko Osaki, Nobuhiro Nakamura
  • Publication number: 20120074447
    Abstract: A light emitting diode element having a light emitting diode; and a glass covering sealing the light emitting diode is provided. The glass of the covering consists essentially of from 30 to 70 mol % of SnO, from 15 to 50 mol % of P2O5, from 0.1 to 20 mol % of ZnO, from 0 to 10 mol % of SiO2+GeO2, from 0 to 30% of Li2O+Na2O+K2O, and from 0 to 20% of MgO+CaO+SrO+BaO. In an embodiment, a refractive index of the glass of the covering is at least 1.6 at a wavelength of 400 nm.
    Type: Application
    Filed: October 11, 2011
    Publication date: March 29, 2012
    Applicant: Asahi Glass Company, Limited
    Inventors: Syuji Matsumoto, Tomoyuki Kobayashi, Naoki Sugimoto, Satoshi Fujimine, Nobuhiro Nakamura
  • Publication number: 20120025245
    Abstract: Provided is an electronic device having a long life and a large effective area. Furthermore, provided is an optical device capable of controlling specular visibility. And provided is a substrate for the optical device, which includes a scattering layer having excellent scattering properties and having a desired refractive index while retaining surface smoothness. Further, there is provided a substrate for the electronic device, which includes a substrate having first and second main surfaces facing each other and an electrode pattern formed on the first main surface of the substrate, in which the first main surface of the first and second main surfaces is a surface which forms waviness made up of curved faces, the waviness of the surface has a wavelength R?a of greater than 50 ?m and a ratio Ra/R?a of waviness roughness Ra of the surface which forms waviness to the wavelength R?a of the waviness is from 1.0×10?4 to 3.0×10?2.
    Type: Application
    Filed: July 25, 2011
    Publication date: February 2, 2012
    Inventors: Nobuhiro Nakamura, Nao Ishibashi
  • Publication number: 20110284907
    Abstract: The present invention provides an organic LED element in which the extraction efficiency is improved up to 80% of emitted light. Further, the invention relates to an electrode-attached translucent substrate having a translucent substrate, a scattering layer formed over the glass substrate and containing a base material having a first refractive index for at least one wavelength of wavelengths of emitted light of an organic LED element and a plurality of scattering materials positioned in the base material and having a second refractive index different from that of the base material, and a translucent electrode formed over the scattering layer and having a third refractive index equal to or lower than the first refractive index, in which distribution of the scattering materials in the scattering layer decreases from the inside of the scattering layer toward the translucent electrode.
    Type: Application
    Filed: August 1, 2011
    Publication date: November 24, 2011
    Applicant: Asahi Glass Company, Limited
    Inventors: Nobuhiro NAKAMURA, Kazutaka Hayashi, Kenji Imakita, Hiroyuki Ohkawa, Hidefumi Odaka, Nao Ishibashi
  • Publication number: 20110287264
    Abstract: A glass composition having high refractive index, softening property at low temperature and small average thermal expansion coefficient, and a member provided with the composition on a substrate, are provided. The glass composition of the present invention has a refractive index (nd) of from 1.88 to 2.20, a glass transition temperature (Tg) of from 450 to 490° C., and an average thermal expansion coefficient at temperatures from 50° C. to 300° C. (?50-300) of from 60×10?7/K to 90×10?7/K, and includes Bi2O3 in an amount of from 5 to 25% in terms of mol % on the basis of oxides.
    Type: Application
    Filed: July 25, 2011
    Publication date: November 24, 2011
    Inventors: Naoya Wada, Nobuhiro Nakamura, Nao Ishibashi
  • Publication number: 20110278622
    Abstract: A glass to be used in a scattering layer of an organic LED element, and an organic LED element using the scattering layer are provided. The organic LED element of the present invention includes, a transparent substrate, a first electrode provided on the transparent electrode, an organic layer provided on the first electrode, and a second electrode provided on the organic layer, and further includes a scattering layer including, in terms of mol % on the basis of oxides, 15 to 30% of P2O5, 5 to 25% of Bi2O3, 5 to 27% of Nb2O5, and 10 to 35% of ZnO and having a total content of alkali metal oxides including Li2O, Na2O and K2O of 5% by mass or less.
    Type: Application
    Filed: July 25, 2011
    Publication date: November 17, 2011
    Inventors: Naoya Wada, Nobuhiro Nakamura, Nao Ishibashi
  • Publication number: 20110278635
    Abstract: A method for producing a substrate for an electronic device, that can improve light extraction efficiency, can easily produces and has high liability is provided. The method includes: a step of heat-melting a glass raw material or a glass to produce a molten glass; a forming step of continuously feeding the molten glass to a bath surface of a molten metal bathtub accommodating a molten metal to form a continuous glass ribbon 6; a step of feeding a glass powder M having a desired composition on the continuous glass ribbon 6 and melting or sintering the glass powder M to form a scattering layer; a step of gradually cooling the scattering layer-attached continuous glass ribbon; and a step of cutting the scattering layer-attached continuous glass ribbon gradually cooled to obtain a scattering layer-attached glass substrate.
    Type: Application
    Filed: July 25, 2011
    Publication date: November 17, 2011
    Inventors: Nobuhiro Nakamura, Kenji Yamada, Syuji Matsumoto
  • Patent number: 8018140
    Abstract: The present invention provides an organic LED element in which the extraction efficiency is improved up to 80% of emitted light. Further, the invention relates to an electrode-attached translucent substrate having a translucent substrate, a scattering layer formed over the glass substrate and containing a base material having a first refractive index for at least one wavelength of wavelengths of emitted light of an organic LED element and a plurality of scattering materials positioned in the base material and having a second refractive index different from that of the base material, and a translucent electrode formed over the scattering layer and having a third refractive index equal to or lower than the first refractive index, in which distribution of the scattering materials in the scattering layer decreases from the inside of the scattering layer toward the translucent electrode.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: September 13, 2011
    Assignee: Asahi Glass Company, Limited
    Inventors: Nobuhiro Nakamura, Kazutaka Hayashi, Kenji Imakita, Hiroyuki Ohkawa, Hidefumi Odaka, Nao Ishibashi
  • Patent number: 8004808
    Abstract: The present invention provides a control apparatus for detecting an early stage short circuit between the terminals of an electrolytic capacitor, and detecting a short circuit between a load that is connected in parallel to the electrolytic capacitor, the apparatus performing appropriate processing before an adverse effect is inflicted on peripheral equipment. In the control apparatus, microcomputers switch on a second relay; an electrolytic capacitor is gradually charged via a current-limiting resistor; a first voltage detection control for detecting a voltage between terminals of the electrolytic capacitor is performed when a first set time period has elapsed after the second relay has been switched on; and a second voltage detection control for detecting a voltage between the terminals of the electrolytic capacitor is performed when a second set time period, which is longer than the first set time period, has elapsed after the second relay has been switched on.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: August 23, 2011
    Assignee: Daikin Industries, Ltd.
    Inventor: Nobuhiro Nakamura
  • Publication number: 20110180308
    Abstract: Provided is a substrate for an electronic device for providing an electronic device having a long-life and a high reliability in which exfoliation or deterioration of a wiring is inhibited by embedding the wiring therein while maintaining smoothness of the surface. The substrate is a substrate 100 for an electronic device, including a first and a second main surfaces facing each other, in which an electrode wiring is formed on the first main surface. The substrate 100 for an electronic device includes a glass substrate 101, an auxiliary wiring pattern 200 formed on the first main surface on the glass substrate 101, and a translucent glass layer 102 formed on the surface of the glass substrate 100 to cover the upper layer of the auxiliary wiring pattern 200, in which through-holes H exposing the auxiliary wiring pattern 200 are formed in a portion of the glass layer 102.
    Type: Application
    Filed: April 5, 2011
    Publication date: July 28, 2011
    Inventors: Nobuhiro NAKAMURA, Yumiko AOKI
  • Patent number: 7872417
    Abstract: A diode chip is sealed by a glass material. There are provided a light emitting diode chip and a glass member in close contact with at least one portion of the surface of the light emitting diode chip. The glass member has a surface shape containing a curved surface at least a portion thereof. The curved surface is preferably a portion of a spherical surface or a spheroidal surface. The glass member has a surface shape containing a spherical portion and a flat portion, and the diode chip is preferably disposed on the flat portion.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: January 18, 2011
    Assignee: Asahi Glass Company, Limited
    Inventors: Nobuhiro Nakamura, Syuji Matsumoto, Hitoshi Onoda, Yutaka Segawa, Tetsuro Matsumoto, Hiroshi Usui
  • Patent number: 7872281
    Abstract: A glass-coated light-emitting element 10 of the invention has a semiconductor light-emitting element 2 having a surface on which no electrode is formed is coated with a glass 1, in which a surface of the glass 1 constitutes a part of a spherical surface broader than a hemispherical surface, the refractive index of the glass 1 at an emission peak wavelength of the semiconductor light-emitting element 2 is 1.7 or more, and the ratio of the diameter of the above-mentioned spherical surface to the maximum diameter of a surface of the semiconductor light-emitting element 2 on which electrodes are formed is 1.8 to 3.5, whereby light emitted from the light-emitting element can be efficiently introduced into a light control unit, and alignment with a lens or a light pipe, which has hitherto been made, becomes unnecessary.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: January 18, 2011
    Assignee: Asahi Glass Company, Limited
    Inventors: Nobuhiro Nakamura, Minoru Sekine, Syuji Matsumoto
  • Publication number: 20110001159
    Abstract: An organic LED element having improved reliability in a long-term use, and having improved external extraction efficiency up to 80% of emitted light is provided. A substrate for an electronic device according to the present invention includes: a translucent substrate; a scattering layer including a glass and being provided on the translucent electrode; a coating layer provided on the scattering layer; and scattering materials that are present in the scattering layer and the coating layer and are not present on a surface of the coating layer, in which a surface of the coating layer has waviness in which a ratio Ra/R?a of waviness height Ra to waviness period R?a exceeds 1.0×10?4 and is 3.0×10?2 or less.
    Type: Application
    Filed: September 16, 2010
    Publication date: January 6, 2011
    Inventors: Nobuhiro Nakamura, Kazutaka Hayashi, Nao Ishibashi, Masayuki Serita
  • Publication number: 20100252858
    Abstract: To provide glass with which a sealing treatment can be carried out at a temperature of at most 400° C. and which does not deteriorate or change in quality for a long time. Glass comprising, as represented by mol % based on oxides, from 27 to 33% of P2O5, from 50 to 70% of SnO, from 0 to 10% of ZnO, from 0.5 to 5% of CaO and from 0 to 5% of B2O3.
    Type: Application
    Filed: June 17, 2010
    Publication date: October 7, 2010
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Syuji Matsumoto, Nobuhiro Nakamura, Naoya Wada, Yasuko Osaki
  • Publication number: 20100230667
    Abstract: The present invention is intended to provide an organic LED element in which the extraction efficiency is improved up to 80% of emitted light, and provides a translucent substrate comprising a translucent glass substrate; a scattering layer formed on the glass substrate and comprising a glass which contains a base material having a first refractive index for at least one wavelength of light to be transmitted and a plurality of scattering materials dispersed in the base material and having a second refractive index different from that of the base material; and a translucent electrode formed on the scattering layer and having a third refractive index higher than the first refractive index, wherein distribution of the scattering materials in the scattering layer decreases toward the translucent electrode.
    Type: Application
    Filed: May 7, 2010
    Publication date: September 16, 2010
    Inventors: Nobuhiro Nakamura, Motoshi Ono, Kenji Imakita, Hidefumi Odaka, Nao Ishibashi, Kazutaka Hayashi
  • Publication number: 20100187987
    Abstract: The present invention relates to: an electrode-attached substrate including a reflective substrate, a scattering layer formed on the substrate and composed of a glass layer including a plurality of scattering materials, and a translucent electrode formed on the scattering layer; a method for producing the same; an organic LED element using the electrode-attached substrate; and a method for producing the same.
    Type: Application
    Filed: January 26, 2010
    Publication date: July 29, 2010
    Applicant: Asahi Glass Company, Limited
    Inventor: Nobuhiro NAKAMURA