Patents by Inventor Ryo Naraoka

Ryo Naraoka 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: 9774003
    Abstract: The first electrode has a convexo-concave structure including a plurality of convex portions and a plurality of concave portions at an interface with the organic compound layer. The convexo-concave structure has at least one cross section in a thickness direction of the light-transmissive substrate, the cross section being shaped in a sine-wave curve or a curve represented by a sum of a plurality of sine waves having different amplitudes or angles. A distance between a convex portion and an adjacent convex portion forming the convexo-concave structure is equal to or more than a peak wavelength of light radiated from the emitting layer and is equal to or less than a propagation distance (Lsp) of surface plasmon at the interface between the first electrode having the convexo-concave structure and the organic compound layer.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: September 26, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventor: Ryo Naraoka
  • Patent number: 9368731
    Abstract: A top-emitting organic electroluminescence device including sequentially a first electrode, one or more organic layers comprising an emitting layer, a second electrode and a capping layer, wherein the capping layer comprises a compound represented by the following formula (1):
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: June 14, 2016
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Hiroyuki Saito, Ryo Naraoka, Tomoki Kato, Masaki Numata
  • Patent number: 9184414
    Abstract: An organic EL device comprises: a light-transmissive substrate; a transparent electrode; an organic emitting layer; and an opposing electrode. A light-extraction layer provided by layering a high refractive index layer adjoining the transparent electrode and a low refractive index layer adjoining the light-transmissive substrate includes recess-protrusion units each provided by a protrusion and a recess at an interface between the high refractive index layer and the low refractive index layer. In at least one of the recess-protrusion units, a distance from the interface between the high refractive index layer and the low refractive index layer to an interface between the transparent electrode and the high refractive index layer is equal to or more than an optical coherence length and a height of the protrusion, a width of the protrusion and a gap between the protrusion and another protrusion adjoining the protrusion across the recess is 1 ?m or more.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: November 10, 2015
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Ryo Naraoka, Masahiko Fukuda, Hitoshi Kuma
  • Publication number: 20150236300
    Abstract: The first electrode has a convexo-concave structure including a plurality of convex portions and a plurality of concave portions at an interface with the organic compound layer. The convexo-concave structure has at least one cross section in a thickness direction of the light-transmissive substrate, the cross section being shaped in a sine-wave curve or a curve represented by a sum of a plurality of sine waves having different amplitudes or angles. A distance between a convex portion and an adjacent convex portion forming the convexo-concave structure is equal to or more than a peak wavelength of light radiated from the emitting layer and is equal to or less than a propagation distance (Lsp) of surface plasmon at the interface between the first electrode having the convexo-concave structure and the organic compound layer.
    Type: Application
    Filed: August 26, 2013
    Publication date: August 20, 2015
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventor: Ryo Naraoka
  • Patent number: 9095033
    Abstract: A top-emission organic electroluminescence device (1) includes in order a first electrode (20), one or more organic layers (30B) including a blue-emitting layer (34B), a second electrode (40), and a capping layer (50), wherein the capping layer (50) is formed of a material that satisfies the expression “n(?=430 nm)?n(?=460 nm)>0.08” (where, n(?=x nm) indicates a refractive index at a wavelength of x nm) and has an extinction coefficient of 0.1 or less at a wavelength of 430 to 500 nm.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: July 28, 2015
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Ryo Naraoka, Hitoshi Kuma, Hiroyuki Saito, Chishio Hosokawa
  • Patent number: 8742526
    Abstract: A photoelectric conversion device including a substrate, a photoelectric conversion element including a first electrode, a second electrode and an organic compound layer and a sealing member that are disposed in this order. When a cross section of the photoelectric conversion device in a thickness direction is observed with the sealing member being placed at an upper side, a bonding member seals the organic compound layer at an outside thereof. An output electrode on the sealing member has a protrusion. A side conductive portion is electrically connected with the protrusion in an up-and-down direction. A substrate conductive member electrically connected with the first electrode and the second electrode extends to an outside of the bonding member. An electrical connecting member electrically connects the side conductive portion to the substrate conductive member at a further outside of the bonding member.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: June 3, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Hiroyuki Iwabuchi, Chishio Hosokawa, Ryo Naraoka
  • Publication number: 20140034942
    Abstract: A top-emitting organic electroluminescence device including sequentially a first electrode, one or more organic layers comprising an emitting layer, a second electrode and a capping layer, wherein the capping layer comprises a compound represented by the following formula (1):
    Type: Application
    Filed: April 9, 2012
    Publication date: February 6, 2014
    Inventors: Hiroyuki Saito, Ryo Naraoka, Tomoki Kato, Masaki Numata
  • Publication number: 20120286258
    Abstract: An organic EL device (1) comprises: a light-transmissive substrate (2); a transparent electrode (4); an organic emitting layer (5); and an opposing electrode (6). A light-extraction layer (3) provided by layering a high refractive index layer (31) adjoining the transparent electrode (4) and a low refractive index layer (32) adjoining the light-transmissive substrate (2) includes recess-protrusion units (31A) each provided by a protrusion (311) and a recess (312) at an interface between the high refractive index layer (31) and the low refractive index layer (32).
    Type: Application
    Filed: April 22, 2011
    Publication date: November 15, 2012
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Ryo Naraoka, Masahiko Fukuda, Hitoshi Kuma
  • Publication number: 20120138918
    Abstract: Atop-emission organic electroluminescence device (1) includes in order a first electrode (20), one or more organic layers (30B) including a blue-emitting layer (34B), a second electrode (40), and a capping layer (50), wherein the capping layer (50) is formed of a material that satisfies the expression “n(?=430 nm)?n(?=460 nm)>0.08” (where, n(?=x nm) indicates a refractive index at a wavelength of x nm) and has an extinction coefficient of 0.1 or less at a wavelength of 430 to 500 nm.
    Type: Application
    Filed: October 8, 2010
    Publication date: June 7, 2012
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Ryo Naraoka, Hitoshi Kuma, Hiroyuki Saito, Chishio Hosokawa
  • Publication number: 20120126356
    Abstract: A photoelectric conversion device including a substrate, a photoelectric conversion element including a first electrode, a second electrode and an organic compound layer and a sealing member that are disposed in this order. When a cross section of the photoelectric conversion device in a thickness direction is observed with the sealing member being placed at an upper side, a bonding member seals the organic compound layer at an outside thereof. An output electrode on the sealing member has a protrusion. A side conductive portion is electrically connected with the protrusion in an up-and-down direction. A substrate conductive member electrically connected with the first electrode and the second electrode extends to an outside of the bonding member. An electrical connecting member electrically connects the side conductive portion to the substrate conductive member at a further outside of the bonding member.
    Type: Application
    Filed: March 15, 2011
    Publication date: May 24, 2012
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Hiroyuki Iwabuchi, Chishio Hosokawa, Ryo Naraoka