Patents by Inventor Tomofumi Osaki
Tomofumi Osaki 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: 9716208Abstract: Occurrence of a crosstalk phenomenon is prevented in a light-emitting device including a tandem element. The light-emitting device includes an insulating layer, a first lower electrode over the insulating layer, a second lower electrode over the insulating layer, a partition positioned over the insulating layer and between the first lower electrode and the second lower electrode, a first light-emitting unit over the first lower electrode, the partition, and the second lower electrode, intermediate layers over the first light-emitting unit, a second light-emitting unit over the intermediate layer, and an upper electrode over the second light-emitting unit. The partition has a first depression.Type: GrantFiled: December 17, 2013Date of Patent: July 25, 2017Assignees: Semiconductor Energy Laboratory Co., Ltd., Sharp Kabushiki KaishaInventors: Yoshitaka Dozen, Hisao Ikeda, Yoshiharu Hirakata, Manabu Niboshi, Katsuhiro Kikuchi, Shinichi Kawato, Takashi Ochi, Yuto Tsukamoto, Tomohiro Kosaka, Tomofumi Osaki
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Patent number: 9391295Abstract: An organic EL display device is provided with: an organic EL element, which is formed on an insulating substrate, and which is provided between the insulating substrate and an insulating substrate; a sealing material, which is provided in a frame region, and which is sandwiched between the insulating substrate and the insulating substrate to bond the insulating substrates to each other; and a wall member, which is provided in the frame region by being adjacent to the outer face side of the sealing material, and which forms level differences in the sealing material so as to make the height of the outer face side of the sealing material small.Type: GrantFiled: April 10, 2013Date of Patent: July 12, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Katsuhiro Kikuchi, Shinichi Kawato, Takashi Ochi, Manabu Niboshi, Yuto Tsukamoto, Tomohiro Kosaka, Tomofumi Osaki
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Patent number: 9231154Abstract: The emission efficiency of a light-emitting device including a microcavity structure is improved. The light-emitting device includes a plurality of light-emitting elements. The plurality of light-emitting elements each include a reflective electrode, a transparent electrode, a plurality of light-emitting layers, and a semi-transmissive and semi-reflective electrode stacked in that order. The plurality of light-emitting layers emit light of different colors. A surface roughness of the transparent electrode in the light-emitting element which is among the plurality of light-emitting elements and in which light emitted from the light-emitting layer closest to the reflective electrode is amplified and emitted outside is greater than surface roughnesses of the transparent electrodes in the other light-emitting elements.Type: GrantFiled: January 31, 2014Date of Patent: January 5, 2016Assignees: Semiconductor Energy Laboratory Co., Ltd., Sharp Kabushiki KaishaInventors: Hisao Ikeda, Takuya Kawata, Manabu Niboshi, Katsuhiro Kikuchi, Shinichi Kawato, Takashi Ochi, Yuto Tsukamoto, Tomohiro Kosaka, Tomofumi Osaki
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Publication number: 20150299840Abstract: A mask frame according to one embodiment of the present invention includes a side with a surface having a shape of a mountain that has the highest point at a center in the lengthwise direction thereof and respective lowest points at an end and another end in the lengthwise direction, and a side facing the side and having the same shape as the side.Type: ApplicationFiled: June 19, 2013Publication date: October 22, 2015Applicant: Sharp Kabushiki KaishaInventors: Tomofumi Osaki, Shinichi Kawato, Takashi Ochi, Katsuhiro Kikuchi, Manabu Niboshi, Tomohiro Kosaka, Yuto Tsukamoto
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Patent number: 9093404Abstract: The light-emitting device includes a first lower electrode, a second lower electrode, a partition, a layer with high conductivity, light-emitting layers, and an upper electrode. The conductivity of the layer with high conductivity is higher than the conductivity of each of the light-emitting layers and lower than the conductivity of each of the lower electrodes and the upper electrode. The partition includes a first slope located on a first lower electrode side and a second slope located on a second lower electrode side. The thickness of the layer with high conductivity located over the first slope in a direction perpendicular to the first slope is different from the thickness of the layer with high conductivity located over the second slope in a direction perpendicular to the second slope.Type: GrantFiled: December 18, 2013Date of Patent: July 28, 2015Assignees: Semiconductor Energy Laboratory Co., Ltd., Sharp Kabushiki KaishaInventors: Kohei Yokoyama, Tomohiro Kosaka, Fumikazu Shimoshikiryoh, Shinichi Kawato, Katsuhiro Kikuchi, Manabu Niboshi, Takashi Ochi, Yuto Tsukamoto, Tomofumi Osaki
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Patent number: 9087964Abstract: Occurrence of a crosstalk phenomenon is suppressed in a light-emitting device including a tandem element. A light-emitting device includes a first lower electrode and a second lower electrode over an insulating layer; a partition which is formed over the insulating layer and positioned between the first lower electrode and the second lower electrode; a projecting object formed over the partition; a first light-emitting unit over each of the first lower electrode, the partition, the projecting object, and the second lower electrode; an intermediate layer over the first light-emitting unit; a second light-emitting unit over the intermediate layer; and an upper electrode over the second light-emitting unit. A recess is formed by a side surface of the projecting object and a side surface of the partition.Type: GrantFiled: October 15, 2013Date of Patent: July 21, 2015Assignees: Semiconductor Energy Laboratory Co., Ltd., Sharp Kabushiki KaishaInventors: Kaoru Hatano, Naoyuki Senda, Manabu Niboshi, Katsuhiro Kikuchi, Shinichi Kawato, Takashi Ochi, Yuto Tsukamoto, Tomohiro Kosaka, Tomofumi Osaki
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Publication number: 20150159267Abstract: A mask unit is arranged such that at any location along an X direction with respect to openings (S) of a vapor deposition mask, the length of that portion of openings S which is uncovered by a beam portion totals a constant length along a Y direction in a plan view and that the beam portion has a part in contact with the vapor deposition mask which part does not bridge an opening of a frame portion along the Y direction but extends to cross the Y direction continuously or intermittently.Type: ApplicationFiled: April 15, 2013Publication date: June 11, 2015Inventors: Takashi Ochi, Shinichi Kawato, Tomofumi Osaki, Manabu Niboshi, Tomohiro Kosaka, Yuto Tsukamoto, Katsuhiro Kikuchi
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Publication number: 20150123092Abstract: An organic EL display device is provided with: an organic EL element, which is formed on an insulating substrate, and which is provided between the insulating substrate and an insulating substrate; a sealing material, which is provided in a frame region, and which is sandwiched between the insulating substrate and the insulating substrate to bond the insulating substrates to each other; and a wall member, which is provided in the frame region by being adjacent to the outer face side of the sealing material, and which forms level differences in the sealing material so as to make the height of the outer face side of the sealing material small.Type: ApplicationFiled: April 10, 2013Publication date: May 7, 2015Applicant: Sharp Kabushiki KaishaInventors: Katsuhiro Kikuchi, Shinichi Kawato, Takashi Ochi, Manabu Niboshi, Yuto Tsukamoto, Tomohiro Kosaka, Tomofumi Osaki
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Publication number: 20150114297Abstract: In a deposition device, a deposition mask of a mask unit (54) has a width in the scanning (movement) direction thereof that is less than a width of a target substrate (on which film will be deposited) in the same scanning direction. A substrate holder includes a substrate holding surface that has at least one curve along the scanning direction matching a bend in the target substrate caused by the weight thereof, and this curve occurs in the direction perpendicular to the scanning direction.Type: ApplicationFiled: April 18, 2013Publication date: April 30, 2015Applicant: Sharp Kabushiki KaishaInventors: Shinichi Kawato, Katsuhiro Kikuchi, Manabu Niboshi, Takashi Ochi, Yuto Tsukamoto, Tomohiro Kosaka, Tomofumi Osaki
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Patent number: 9016923Abstract: A lighting device includes light sources arranged at an end, light guide portions arranged along an arrangement direction of the light sources and receiving light from the light sources, and light output portions arranged along a direction crossing the arrangement direction and exiting light from the light guide portions. The light output portions include at least a first light output portion and a second light output portion. The first light output portion is arranged relatively close to the light sources and the second light output portion is arranged relatively farther from the light sources with respect to the first light output portion. The light guide portions include at least a first light guide portion and a second light guide portion, and the first light guide portion is optically connected to the first light output portion and the second light guide portion is optically connected to the second light output portion.Type: GrantFiled: November 9, 2010Date of Patent: April 28, 2015Assignee: Sharp Kabushiki KaishaInventors: Tomohiro Kosaka, Toshinori Sugihara, Tomofumi Osaki, Takehisa Yoshida
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Publication number: 20140225102Abstract: The emission efficiency of a light-emitting device including a microcavity structure is improved. The light-emitting device includes a plurality of light-emitting elements. The plurality of light-emitting elements each include a reflective electrode, a transparent electrode, a plurality of light-emitting layers, and a semi-transmissive and semi-reflective electrode stacked in that order. The plurality of light-emitting layers emit light of different colors. A surface roughness of the transparent electrode in the light-emitting element which is among the plurality of light-emitting elements and in which light emitted from the light-emitting layer closest to the reflective electrode is amplified and emitted outside is greater than surface roughnesses of the transparent electrodes in the other light-emitting elements.Type: ApplicationFiled: January 31, 2014Publication date: August 14, 2014Inventors: Hisao IKEDA, Takuya KAWATA, Manabu NIBOSHI, Katsuhiro KIKUCHI, Shinichi KAWATO, Takashi OCHI, Yuto TSUKAMOTO, Tomohiro KOSAKA, Tomofumi OSAKI
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Publication number: 20140175469Abstract: Occurrence of a crosstalk phenomenon is prevented in a light-emitting device including a tandem element. The light-emitting device includes an insulating layer, a first lower electrode over the insulating layer, a second lower electrode over the insulating layer, a partition positioned over the insulating layer and between the first lower electrode and the second lower electrode, a first light-emitting unit over the first lower electrode, the partition, and the second lower electrode, intermediate layers over the first light-emitting unit, a second light-emitting unit over the intermediate layer, and an upper electrode over the second light-emitting unit. The partition has a first depression.Type: ApplicationFiled: December 17, 2013Publication date: June 26, 2014Applicants: Sharp Kabushiki Kaisha, Semiconductor Energy Laboratory Co., Ltd.Inventors: Yoshitaka Dozen, Hisao Ikeda, Yoshiharu Hirakata, Manabu Niboshi, Katsuhiro Kikuchi, Shinichi Kawato, Takashi Ochi, Yuto Tsukamoto, Tomohiro Kosaka, Tomofumi Osaki
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Publication number: 20140175470Abstract: The light-emitting device includes a first lower electrode, a second lower electrode, a partition, a layer with high conductivity, light-emitting layers, and an upper electrode. The conductivity of the layer with high conductivity is higher than the conductivity of each of the light-emitting layers and lower than the conductivity of each of the lower electrodes and the upper electrode. The partition includes a first slope located on a first lower electrode side and a second slope located on a second lower electrode side. The thickness of the layer with high conductivity located over the first slope in a direction perpendicular to the first slope is different from the thickness of the layer with high conductivity located over the second slope in a direction perpendicular to the second slope.Type: ApplicationFiled: December 18, 2013Publication date: June 26, 2014Applicants: Sharp Kabushiki Kaisha, Semiconductor Energy Laboratory Co., Ltd.Inventors: Kohei Yokoyama, Tomohiro Kosaka, Fumikazu Shimoshikiryoh, Shinichi Kawato, Katsuhiro Kikuchi, Manabu Niboshi, Takashi Ochi, Yuto Tsukamoto, Tomofumi Osaki
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Publication number: 20140103368Abstract: Occurrence of a crosstalk phenomenon is suppressed in a light-emitting device including a tandem element. A light-emitting device includes a first lower electrode and a second lower electrode over an insulating layer; a partition which is formed over the insulating layer and positioned between the first lower electrode and the second lower electrode; a projecting object formed over the partition; a first light-emitting unit over each of the first lower electrode, the partition, the projecting object, and the second lower electrode; an intermediate layer over the first light-emitting unit; a second light-emitting unit over the intermediate layer; and an upper electrode over the second light-emitting unit. A recess is formed by a side surface of the projecting object and a side surface of the partition.Type: ApplicationFiled: October 15, 2013Publication date: April 17, 2014Inventors: Kaoru HATANO, Naoyuki SENDA, Manabu NIBOSHI, Katsuhiro KIKUCHI, Shinichi KAWATO, Takashi OCHI, Yuto TSUKAMOTO, Tomohiro KOSAKA, Tomofumi OSAKI
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Publication number: 20120262633Abstract: An object is to provide a lighting device with improved workability in assembling a light guide plate, a display device and a television receiver using this lighting device. The lighting device according to the present invention has LEDs 16, an inclined surface 32A to which light from the LEDs 16 enter, a light exit surface 31 which emits the light, and a light guide plate 30 with the light exit surface having a rectangular shape in a planar view. The light guide plate 30 has the inclined surfaces 32A and 32B inclined in a form protruding outside the light guide plate 30 in one direction of the light exit surface 31, as both side surfaces in the one side direction of the light exit surface 31 get closer to the side of the light exit surface 31. The inclined surfaces 32A and 32B on the both sides have symmetrical shapes with each other. One of the inclined surfaces 32A and 32B is a light entrance surface and is facing a luminous surface 16a of the LED 16.Type: ApplicationFiled: December 1, 2010Publication date: October 18, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Takehisa Yoshida, Tomofumi Osaki, Tomohiro Kosaka, Atsushi Ban
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Publication number: 20120229736Abstract: Disclosed is a liquid crystal panel that can prevent a light leakage from the outside through a sealing portion and that can achieve excellent display quality and a narrower frame. The liquid crystal panel 10 is provided with, in a non-display region 10B on a surface of a first substrate 11 on a side facing a second substrate 12, a black matrix installation area 30, which includes a black matrix forming section 32 and a black matrix non-forming section 34 that is enclosed by the black matrix forming section. A sealing portion 16 is formed in the black matrix installation area 30 such that a portion thereof that makes direct contact with the first substrate 11 is arranged in the black matrix non-forming section 34.Type: ApplicationFiled: October 7, 2010Publication date: September 13, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Tomofumi Osaki, Taimi Oketani
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Publication number: 20120224106Abstract: A lighting device includes light sources arranged at an end, light guide portions arranged along an arrangement direction of the light sources and receiving light from the light sources, and light output portions arranged along a direction crossing the arrangement direction and exiting light from the light guide portions. The light output portions include at least a first light output portion and a second light output portion. The first light output portion is arranged relatively close to the light sources and the second light output portion is arranged relatively farther from the light sources with respect to the first light output portion. The light guide portions include at least a first light guide portion and a second light guide portion, and the first light guide portion is optically connected to the first light output portion and the second light guide portion is optically connected to the second light output portion.Type: ApplicationFiled: November 9, 2010Publication date: September 6, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Tomohiro Kosaka, Toshinori Sugihara, Tomofumi Osaki, Takehisa Yoshida