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).
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Patent number: 9774003Abstract: 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: GrantFiled: August 26, 2013Date of Patent: September 26, 2017Assignee: IDEMITSU KOSAN CO., LTD.Inventor: Ryo Naraoka
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Patent number: 9368731Abstract: 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: GrantFiled: April 9, 2012Date of Patent: June 14, 2016Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Hiroyuki Saito, Ryo Naraoka, Tomoki Kato, Masaki Numata
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Patent number: 9184414Abstract: 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: GrantFiled: April 22, 2011Date of Patent: November 10, 2015Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Ryo Naraoka, Masahiko Fukuda, Hitoshi Kuma
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Publication number: 20150236300Abstract: 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: ApplicationFiled: August 26, 2013Publication date: August 20, 2015Applicant: Idemitsu Kosan Co., Ltd.Inventor: Ryo Naraoka
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Patent number: 9095033Abstract: 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: GrantFiled: October 8, 2010Date of Patent: July 28, 2015Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Ryo Naraoka, Hitoshi Kuma, Hiroyuki Saito, Chishio Hosokawa
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Patent number: 8742526Abstract: 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: GrantFiled: March 15, 2011Date of Patent: June 3, 2014Assignee: Idemitsu Kosan Co., Ltd.Inventors: Hiroyuki Iwabuchi, Chishio Hosokawa, Ryo Naraoka
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Publication number: 20140034942Abstract: 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: ApplicationFiled: April 9, 2012Publication date: February 6, 2014Inventors: Hiroyuki Saito, Ryo Naraoka, Tomoki Kato, Masaki Numata
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Publication number: 20120286258Abstract: 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: ApplicationFiled: April 22, 2011Publication date: November 15, 2012Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Ryo Naraoka, Masahiko Fukuda, Hitoshi Kuma
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Publication number: 20120138918Abstract: 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: ApplicationFiled: October 8, 2010Publication date: June 7, 2012Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Ryo Naraoka, Hitoshi Kuma, Hiroyuki Saito, Chishio Hosokawa
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Publication number: 20120126356Abstract: 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: ApplicationFiled: March 15, 2011Publication date: May 24, 2012Applicant: Idemitsu Kosan Co., Ltd.Inventors: Hiroyuki Iwabuchi, Chishio Hosokawa, Ryo Naraoka