Patents by Inventor Nobutoshi Asai
Nobutoshi Asai 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: 9252197Abstract: A display panel includes: a plurality of pixel circuits formed in a matrix on a substrate; an insulating layer covering the plurality of pixel circuits; a plurality of light emitting elements connected to the plurality of pixel circuits, and arranged in a matrix on the insulating layer; a filtering layer including a light transmitting section at least in a part of a region facing the light emitting element and a light shielding section formed in a same plane as the light transmitting section, and formed on an opposite side from the pixel circuit in relation to the light emitting element; a light reflecting section formed in a region facing the light shielding section, and between the light emitting element and the filtering layer; and a light receiving element formed in a region facing the light shielding section, and on the pixel circuit side in relation to the light emitting element.Type: GrantFiled: February 24, 2014Date of Patent: February 2, 2016Assignee: JOLED, Inc.Inventors: Kazuo Nakamura, Katsuhide Uchino, Nobutoshi Asai, Hiroshi Sagawa
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Patent number: 8830144Abstract: A display panel includes: a plurality of pixel circuits formed in a matrix on a substrate; an insulating layer covering the plurality of pixel circuits; a plurality of light emitting elements connected to the plurality of pixel circuits, and arranged in a matrix on the insulating layer; a filtering layer including a light transmitting section at least in a part of a region facing the light emitting element and a light shielding section formed in a same plane as the light transmitting section, and formed on an opposite side from the pixel circuit in relation to the light emitting element; a light reflecting section formed in a region facing the light shielding section, and between the light emitting element and the filtering layer; and a light receiving element formed in a region facing the light shielding section, and on the pixel circuit side in relation to the light emitting element.Type: GrantFiled: March 12, 2010Date of Patent: September 9, 2014Assignee: Sony CorporationInventors: Kazuo Nakamura, Katsuhide Uchino, Nobutoshi Asai, Hiroshi Sagawa
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Publication number: 20140217384Abstract: A display panel includes: a plurality of pixel circuits formed in a matrix on a substrate; an insulating layer covering the plurality of pixel circuits; a plurality of light emitting elements connected to the plurality of pixel circuits, and arranged in a matrix on the insulating layer; a filtering layer including a light transmitting section at least in a part of a region facing the light emitting element and a light shielding section formed in a same plane as the light transmitting section, and formed on an opposite side from the pixel circuit in relation to the light emitting element; a light reflecting section formed in a region facing the light shielding section, and between the light emitting element and the filtering layer; and a light receiving element formed in a region facing the light shielding section, and on the pixel circuit side in relation to the light emitting element.Type: ApplicationFiled: February 24, 2014Publication date: August 7, 2014Applicant: SONY CORPORATIONInventors: Kazuo Nakamura, Katsuhide Uchino, Nobutoshi Asai, Hiroshi Sagawa
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Patent number: 8427049Abstract: A display device includes: a light emitting layer configured to emit light in accordance with current; a first pixel separation film configured to define a first opening for providing a light emitting region when the light emitting layer emits light; and a second pixel separation film laminated on the first pixel separation film and configured to define a second opening that is restricted so as not to gradually become wider as apart from a surface contacted with the first pixel separation film.Type: GrantFiled: August 5, 2009Date of Patent: April 23, 2013Assignee: Sony CorporationInventors: Kazuo Nakamura, Nobutoshi Asai, Katsuhide Uchino
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Publication number: 20100245216Abstract: A display panel includes: a plurality of pixel circuits formed in a matrix on a substrate; an insulating layer covering the plurality of pixel circuits; a plurality of light emitting elements connected to the plurality of pixel circuits, and arranged in a matrix on the insulating layer; a filtering layer including a light transmitting section at least in a part of a region facing the light emitting element and a light shielding section formed in a same plane as the light transmitting section, and formed on an opposite side from the pixel circuit in relation to the light emitting element; a light reflecting section formed in a region facing the light shielding section, and between the light emitting element and the filtering layer; and a light receiving element formed in a region facing the light shielding section, and on the pixel circuit side in relation to the light emitting element.Type: ApplicationFiled: March 12, 2010Publication date: September 30, 2010Applicant: Sony CorporationInventors: Kazuo Nakamura, Katsuhide Uchino, Nobutoshi Asai, Hiroshi Sagawa
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Publication number: 20100033089Abstract: A display device includes: a light emitting layer configured to emit light in accordance with current; a first pixel separation film configured to define a first opening for providing a light emitting region when the light emitting layer emits light; and a second pixel separation film laminated on the first pixel separation film and configured to define a second opening that is restricted so as not to gradually become wider as apart from a surface contacted with the first pixel separation film.Type: ApplicationFiled: August 5, 2009Publication date: February 11, 2010Applicant: Sony CorporationInventors: Kazuo Nakamura, Nobutoshi Asai, Katsuhide Uchino
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Patent number: 7602117Abstract: Provided are a display device and a display unit having higher light extraction efficiency. An optical distance L1 between a maximum light-emitting position of a light-emitting layer and a first end portion satisfies L1=tL1+a1 and (2tL1)/?=??1/(2?)+m1. An optical distance L2 between the maximum light-emitting position and a second end portion satisfies L2=tL2+a2 and (2tL2)/?=??2/(2?)+m2.Type: GrantFiled: March 30, 2007Date of Patent: October 13, 2009Assignee: Sony CorporationInventors: Jiro Yamada, Nobutoshi Asai, Shinichiro Tamura
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Patent number: 7572037Abstract: Disclosed herein is a light emitting device, which includes a light emitting element configured to emit a light, and a concave mirror portion configured to reflect the light emitted from the light emitting element, the concave mirror portion being erected on a circumference of an emission surface of the light emitting element. The concave mirror portion has a light reflecting surface obtained by rotating a part of a parabola. A central axis of the rotation is set in a position of passing through a side of the parabola with respect to a middle point of a line segment joining the part of the parabola and a focal point of the parabola.Type: GrantFiled: March 6, 2008Date of Patent: August 11, 2009Assignee: Sony CorporationInventors: Toshihiro Fukuda, Jiro Yamada, Nobutoshi Asai
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Patent number: 7545350Abstract: An organic electroluminescent display device includes scanning lines, signal lines, and pixels formed in a matrix, each pixel being at an intersection of each of the scanning lines and each of the signal lines. Each pixel includes a light-emitting element, a light-emitting circuit composed of a thin-film transistor, and a light-receiving circuit composed of a thin-film transistor. When the light-emitting circuit is selected by the scanning line, the light-emitting circuit drives the light-emitting element according to a video signal that is input from the signal line, thereby displaying an image on the pixels formed in the matrix. The light-receiving circuit is selected in a period of time during which the light-emitting circuit does not operate, and outputs a light-receiving signal in accordance with the amount of light incident on the pixel to a different signal line.Type: GrantFiled: November 8, 2004Date of Patent: June 9, 2009Assignee: Sony CorporationInventors: Kazuo Nakamura, Katsuhide Uchino, Nobutoshi Asai
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Publication number: 20080219005Abstract: Disclosed herein is a light emitting device, which includes a light emitting element configured to emit a light, and a concave mirror portion configured to reflect the light emitted from the light emitting element, the concave mirror portion being erected on a circumference of an emission surface of the light emitting element. The concave mirror portion has a light reflecting surface obtained by rotating a part of a parabola. A central axis of the rotation is set in a position of passing through a side of the parabola with respect to a middle point of a line segment joining the part of the parabola and a focal point of the parabola.Type: ApplicationFiled: March 6, 2008Publication date: September 11, 2008Applicant: SONY CORPORATIONInventors: Toshihiro Fukuda, Jiro Yamada, Nobutoshi Asai
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Patent number: 7417867Abstract: A printed wiring board includes a glass substrate provided with through-holes, conductive patterns provided on both surfaces of said glass substrate in such a manner as to be made conductive to each other via said through-holes, and a sealing member composed of a silver paste containing an epoxy resin as a binder provided to fill said through-holes. This printed wiring board is advantageous in that circuit parts can be connected to each other without use of any planar special region and moisture does not reach the circuit parts through the printed wiring board. A display apparatus capable of stably displaying pictures for a long-period of time is provided by using the printed wiring board.Type: GrantFiled: September 27, 2000Date of Patent: August 26, 2008Assignee: Sony CorporationInventors: Yoshinari Matsuda, Yoshio Suzuki, Ryota Odake, Nobutoshi Asai
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Publication number: 20070170852Abstract: Provided are a display device and a display unit having higher light extraction efficiency. An optical distance L1 between a maximum light-emitting position of a light-emitting layer and a first end portion satisfies L1=tL1+a1 and (2tL1)/?=??1/(2?)+m1. An optical distance L2 between the maximum light-emitting position and a second end portion satisfies L2=tL2+a2 and (2tL2)/?=?2/(2?)+m2.Type: ApplicationFiled: March 30, 2007Publication date: July 26, 2007Inventors: Jiro Yamada, Nobutoshi Asai, Shinichiro Tamura
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Patent number: 7224114Abstract: Provided are a display device and a display unit having higher light extraction efficiency. An optical distance L1 between a maximum light-emitting position of a light-emitting layer and a first end portion satisfies L1=tL1+a1 and (2tL1)/?=??1/(2?)+m1. An optical distance L2 between the maximum light-emitting position and a second end portion satisfies L2=tL2+a2 and (2tL2)/?=??2/(2?)+m2.Type: GrantFiled: September 26, 2003Date of Patent: May 29, 2007Assignee: Sony CorporationInventors: Jiro Yamada, Nobutoshi Asai, Shinichiro Tamura
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Patent number: 7186469Abstract: A novel bathophenanthroline compound of the general formula [I] or [II] is provided wherein R1 and R2 may be the same or different and independently represent a linear, branched or cyclic, saturated or unsaturated hydrocarbon group, or a substituted or unsubstituted, saturated or unsaturated hydrocarbon group provided that at least one of R1 and R2 has at least two carbon atoms, and wherein Ar1 and Ar2 may be the same or different and independently represent a substituted or unsubstituted aryl group. A process for preparing the compound is also provided wherein bathophenanthroline and an organolithium compound are subjected to nucleophilic substitution reaction to obtain the compound of the above formula [I] or [II].Type: GrantFiled: March 11, 2004Date of Patent: March 6, 2007Assignee: Sony CorporationInventors: Tetsuo Shibanuma, Yasunori Kijima, Nobutoshi Asai, Shinichiro Tamura
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Patent number: 7009340Abstract: The invention provides a display unit which can improve emission efficiency of lights for image display, and assure luminance of display images. The display unit comprises micro prisms which are arranged in the positions corresponding to organic EL devices, and which have a high refraction index to refract a light, and auxiliary prisms with a low refraction index which are embedded in voids between each micro prism. A light volume of the light viewed as an image in the direction facing an organic EL display (facing direction) is a total of a light volume of a light essentially emitted from the organic EL device in the facing direction, and lights which are directed in the facing direction by utilizing refraction phenomenon based on differences of refraction index between the micro prism and the auxiliary prism. Compared to the case wherein the micro prisms and the auxiliary prisms are not provided, an emission volume of the light in the facing direction is increased by the light volumes of the lights.Type: GrantFiled: October 22, 2003Date of Patent: March 7, 2006Assignee: Sony CorporationInventors: Nobutoshi Asai, Tetsuo Urabe, Yuichi Iwase
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Patent number: 6972334Abstract: A novel bathophenanthroline compound of the general formula [I] or [II] is provided wherein R1 and R2 may be the same or different and independently represent a linear, branched or cyclic, saturated or unsaturated hydrocarbon group, or a substituted or unsubstituted, saturated or unsaturated hydrocarbon group provided that at least one of R1 and R2 has at least two carbon atoms, and wherein Ar1 and Ar2 may be the same or different and independently represent a substituted or unsubstituted aryl group. A process for preparing the compound is also provided wherein bathophenanthroline and an organolithium compound are subjected to nucleophilic substitution reaction to obtain the compound of the above formula [I] or [II].Type: GrantFiled: November 2, 2000Date of Patent: December 6, 2005Assignee: Sony CorporationInventors: Tetsuo Shibanuma, Yasunori Kijima, Nobutoshi Asai, Shinichiro Tamura
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Publication number: 20050154208Abstract: A novel bathophenanthroline compound of the general formula [I] or [II] is provided wherein R1 and R2 may be the same or different and independently represent a linear, branched or cyclic, saturated or unsaturated hydrocarbon group, or a substituted or unsubstituted, saturated or unsaturated hydrocarbon group provided that at least one of R1 and R2 has at least two carbon atoms, and wherein Ar1 and Ar2 may be the same or different and independently represent a substituted or unsubstituted aryl group. A process for preparing the compound is also provided wherein bathophenanthroline and an organolithium compound are subjected to nucleophilic substitution reaction to obtain the compound of the above formula [I] or [II].Type: ApplicationFiled: February 21, 2005Publication date: July 14, 2005Inventors: Tetsuo Shibanuma, Yasunori Kijima, Nobutoshi Asai, Shinichiro Tamura
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Publication number: 20050099372Abstract: An organic electroluminescent display device includes scanning lines, signal lines, and pixels formed in a matrix, each pixel being at an intersection of each of the scanning lines and each of the signal lines. Each pixel includes a light-emitting element, a light-emitting circuit composed of a thin-film transistor, and a light-receiving circuit composed of a thin-film transistor. When the light-emitting circuit is selected by the scanning line, the light-emitting circuit drives the light-emitting element according to a video signal that is input from the signal line, thereby displaying an image on the pixels formed in the matrix. The light-receiving circuit is selected in a period of time during which the light-emitting circuit does not operate, and outputs a light-receiving signal in accordance with the amount of light incident on the pixel to a different signal line.Type: ApplicationFiled: November 8, 2004Publication date: May 12, 2005Applicant: Sony CorporationInventors: Kazuo Nakamura, Katsuhide Uchino, Nobutoshi Asai
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Publication number: 20050073641Abstract: A novel bathophenanthroline compound of the general formula [I] or [II] is provided wherein R1 and R2 may be the same or different and independently represent a linear, branched or cyclic, saturated or unsaturated hydrocarbon group, or a substituted or unsubstituted, saturated or unsaturated hydrocarbon group provided that at least one of R1 and R2 has at least two carbon atoms, and wherein Ar1 and Ar2 may be the same or different and independently represent a substituted or unsubstituted aryl group. A process for preparing the compound is also provided wherein bathophenanthroline and an organolithium compound are subjected to nucleophilic substitution reaction to obtain the compound of the above formula [I] or [II].Type: ApplicationFiled: September 5, 2003Publication date: April 7, 2005Inventors: Tetsuo Shibanuma, Yasunori Kijima, Nobutoshi Asai, Shinichiro Tamura
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Publication number: 20040265626Abstract: A novel bathophenanthroline compound of the general formula [I] or [II] is provided 1Type: ApplicationFiled: March 11, 2004Publication date: December 30, 2004Inventors: Tetsuo Shibanuma, Yasunori Kijima, Nobutoshi Asai, Shinichiro Tamura