Patents by Inventor Junichi Tonotani
Junichi Tonotani 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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Publication number: 20130032915Abstract: According to one embodiment, a solid state imaging device includes a substrate, and a plurality of interference filters. The substrate includes a plurality of photoelectric conversion units. The plurality of interference filters is provided individually for the plurality of photoelectric conversion units. The plurality of interference filters includes a plurality of layers with different refractive indices stacked. The plurality of interference filters is configured to selectively transmit light in a prescribed wavelength range. A space is provided between adjacent ones of the interference filters.Type: ApplicationFiled: August 1, 2012Publication date: February 7, 2013Applicant: Kabushiki Kaisha ToshibaInventors: Junichi TONOTANI, Takayoshi FUJII, Kenji SASAKI, Yusaku KONNO
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Publication number: 20110223319Abstract: An aspect of the present disclosure, there is provided a method of fabricating an organic electroluminescence display device, including forming a plurality of first electrodes with a prescribed interval on a substrate, forming a light emission function layer including a light emission layer on at least an upper surface of each of the first electrodes, forming a barrier layer on a upper surface of the light emission function layer between the first electrodes after forming the light emission function layer, forming a second electrode on the first electrode.Type: ApplicationFiled: March 4, 2011Publication date: September 15, 2011Applicant: Kabushiki Kaisha ToshibaInventors: Tomohito KAWASHIMA, Junichi Tonotani
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Patent number: 7843128Abstract: Disclosed is an organic electroluminescent element, comprising an anode and a cathode, an organic light-emitting layer interposed between the anode and the cathode, and an organic hole transfer layer containing a polymer type organic hole transfer material having a metal oxide of a semiconductor material or a conductive material added thereto.Type: GrantFiled: July 5, 2007Date of Patent: November 30, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Hideki Ookawa, Junichi Tonotani
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Publication number: 20090267101Abstract: A display includes pixels each of which contains a light emitting element and which are arranged in a matrix form, a light transmitting insulating layer which includes a back surface facing the light emitting element and a front surface as a light output surface, a beam-condensing element which is arranged on a back side of the insulating layer and increases a directivity of light emitted by the light emitting element to make the light incident on the insulating layer, and a diffusing element which is arranged on a front side of the insulating layer, diffuses light from the insulating layer, and output the diffused light to an external environment.Type: ApplicationFiled: July 9, 2009Publication date: October 29, 2009Inventors: Tsuyoshi Uemura, Satoshi Okutani, Hirofumi Kubota, Naotada Okada, Junichi Tonotani
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Patent number: 7573193Abstract: An optical device includes a first waveguide layer in which multiple-beam interference occurs, a second waveguide layer which includes a back surface facing the first waveguide layer and a front surface as a light output surface, and a diffraction grating which is arranged on a back side of the second waveguide layer and faces the first waveguide layer, wherein a grating constant of the diffraction grating is defined such that a first-order diffracted light emerges from the second waveguide layer, the first-order diffracted light being generated when a light component having a highest intensity of light which propagates in an in-plane direction while causing multiple reflection in the first waveguide layer enters the diffraction grating.Type: GrantFiled: November 10, 2005Date of Patent: August 11, 2009Assignees: Toshiba Matsushita Display Technology Co., Ltd., Kabushiki Kaisha ToshibaInventors: Satoshi Okutani, Tsuyoshi Uemura, Hirofumi Kubota, Naotada Okada, Junichi Tonotani, Keiji Suzuki, Hideki Ookawa
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Publication number: 20090084961Abstract: A radiation detector includes an electrode substrate having plural photoelectric transfer elements which convert visible light into electrical signals, a scintillator layer formed on the electrode substrate and converting radial rays into visible light, and a protective film includes a drying agent film and a moisture-proof film. The drying agent film is formed on at least the scintillator layer. The moisture-proof film is formed on the drying agent film.Type: ApplicationFiled: September 24, 2008Publication date: April 2, 2009Inventors: Junichi TONOTANI, Masatoshi HIGUCHI, Keiko SAKAI, Katsuhisa HOMMA, Atsuya YOSHIDA
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Publication number: 20080237474Abstract: A semiconductor photodiode includes: an insulative substrate; a first conductivity type semiconductor layer formed on the insulative substrate; an i-type semiconductor layer formed on the first conductivity type semiconductor layer; a second conductivity type semiconductor layer formed on the i-type semiconductor layer; and a metal electrode. The metal electrode is provided between the insulative substrate and the first conductivity type semiconductor layer so that a peripheral face of the metal electrode is located inside a peripheral face of the first conductivity type semiconductor layer.Type: ApplicationFiled: March 24, 2008Publication date: October 2, 2008Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRON TUBES & DEVICES CO., LTD.Inventors: Junichi TONOTANI, Hiroshi AIDA, Hiroshi ONIHASHI, Hitoshi CHIYOMA
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Patent number: 7375463Abstract: An optical device includes a first waveguide layer in which multiple-beam interference occurs, a second wavelength layer which includes a back surface facing the first waveguide layer and a front surface as a light output surface, and an outcoupling layer which is disposed on a back side of the second waveguide layer and faces the first wave guide layer, wherein the outcoupling layer includes a first portion as a layer with light transmission property and second portions which are dispersed in the first portion and differ in optical property from the first portion, and wherein an array of the second portions forms a triangular lattice.Type: GrantFiled: November 9, 2005Date of Patent: May 20, 2008Assignees: Kabushiki Kaisha Toshiba, Toshiba Matsushita Display Technology Co., Ltd.Inventors: Tsuyoshi Uemura, Satoshi Okutani, Hirofumi Kubota, Muneharu Akiyoshi, Naotada Okada, Junichi Tonotani
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Publication number: 20080007162Abstract: Disclosed is an organic electroluminescent element, comprising an anode and a cathode, an organic light-emitting layer interposed between the anode and the cathode, and an organic hole transfer layer containing a polymer type organic hole transfer material having a metal oxide of a semiconductor material or a conductive material added thereto.Type: ApplicationFiled: July 5, 2007Publication date: January 10, 2008Inventors: Hideki OOKAWA, Junichi Tonotani
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Publication number: 20070298263Abstract: A method for manufacturing an organic electroluminescence device includes: dissolving an organic material in a solvent to prepare an organic solution; forming an organic solution layer by coating a substrate with the organic solution; and forming an organic material layer by drying the organic solution layer. At least one of water concentration and oxygen concentration in the solvent is controlled to 100 mass ppm or less.Type: ApplicationFiled: March 21, 2007Publication date: December 27, 2007Inventors: Junichi Tonotani, Masatoshi Higuchi
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Publication number: 20070290607Abstract: Disclosed is an organic electroluminescent display device, comprising a light-transmitting insulating layer, an organic electroluminescent element including a back side electrode arranged on the back side of the light transmitting insulating layer, a light-transmitting front side electrode interposed between the light-transmitting insulating layer and the back side electrode, and an organic material layer interposed between the front side electrode and the back side electrode and containing a light-emitting layer, and a three-dimensional diffraction element of a two-layer structure arranged on the optical path guiding the light emitted from the light-emitting layer included in the organic material layer to reach the light-transmitting insulating layer, wherein the three-dimensional diffraction element has a cross-sectional structure of a specified dielectric modulation.Type: ApplicationFiled: March 29, 2007Publication date: December 20, 2007Inventors: Naotada OKADA, Junichi Tonotani, Satoshi Okutani, Hiroshi Sano, Tsuyoshi Uemura, Muneharu Akiyoshi, Hirofumi Kubota
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Patent number: 7179672Abstract: A nanometer size roughened structure is formed on a surface of a light-emitting element, and luminous efficiency is improved. The roughened structure on the surface of the light-emitting element of the invention is formed into the following shape such that the refractive index smoothly changes: (1) the mean diameter of projections on the roughened surface is smaller than the light wavelength; (2) a pitch of the roughened surface is irregular; and (3) positions of the top and bottom of the roughened surface are distributed from their mean values within the light wavelength in order to give a smooth gradient of the refractive index.Type: GrantFiled: November 1, 2004Date of Patent: February 20, 2007Assignee: Kabushiki Kaisha ToshibaInventors: Koji Asakawa, Akira Fujimoto, Hitoshi Sugiyama, Kenichi Ohashi, Kenji Suzuki, Junichi Tonotani
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Publication number: 20070034882Abstract: An LED chip of the present invention includes a columnar GaP substrate in which a tapered portion whose outer shape is narrowed toward an upper bottom surface side is formed in an outer wall surface thereof, an upper-surface electrode provided in an upper bottom surface of the GaP substrate, a light-emitting layer provided in a lower bottom surface of the GaP substrate, and a lower-surface electrode provided in a surface opposite to the GaP substrate with respect to the light-emitting layer, the lower-surface electrode being arranged in an annular region outside the region opposite to the upper-surface electrode.Type: ApplicationFiled: August 14, 2006Publication date: February 15, 2007Inventors: Takayoshi Fujii, Junichi Tonotani, Tetsuro Komatsu, Takahiro Sogo, Tomohiro Iguchi
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Publication number: 20060292727Abstract: A photomask plasma etching apparatus includes an electrode to generate plasma, and an electrical capacity control unit configured to control an electrical capacity between the electrode and a mask substrate to be held on the electrode.Type: ApplicationFiled: May 26, 2006Publication date: December 28, 2006Inventors: Takeharu Motokawa, Junichi Tonotani
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Publication number: 20060232200Abstract: Disclosed is an organic electroluminescent element, comprising an anode and a cathode, an organic light-emitting layer interposed between the anode and the cathode, and an organic hole transfer layer containing a polymer type organic hole transfer material having a metal oxide of a semiconductor material or a conductive material added thereto.Type: ApplicationFiled: March 30, 2006Publication date: October 19, 2006Inventors: Hideki Ookawa, Junichi Tonotani
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Publication number: 20060065904Abstract: A display includes pixels each of which contains a light emitting element and which are arranged in a matrix form, a light transmitting insulating layer which includes a back surface facing the light emitting element and a front surface as a light output surface, a beam-condensing element which is arranged on a back side of the insulating layer and increases a directivity of light emitted by the light emitting element to make the light incident on the insulating layer, and a diffusing element which is arranged on a front side of the insulating layer, diffuses light from the insulating layer, and output the diffused light to an external environment.Type: ApplicationFiled: November 10, 2005Publication date: March 30, 2006Inventors: Tsuyoshi Uemura, Satoshi Okutani, Hirofumi Kubota, Naotada Okada, Junichi Tonotani
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Publication number: 20060062270Abstract: An optical device includes a first waveguide layer in which multiple-beam interference occurs, a second waveguide layer which includes a back surface facing the first waveguide layer and a front surface as a light output surface, and a diffraction grating which is arranged on a back side of the second waveguide layer and faces the first waveguide layer, wherein a grating constant of the diffraction grating is defined such that a first-order diffracted light emerges from the second waveguide layer, the first-order diffracted light being generated when a light component having a highest intensity of light which propagates in an in-plane direction while causing multiple reflection in the first waveguide layer enters the diffraction grating.Type: ApplicationFiled: November 10, 2005Publication date: March 23, 2006Inventors: Satoshi Okutani, Tsuyoshi Uemura, Hirofumi Kubota, Naotada Okada, Junichi Tonotani, Keiji Suzuki, Hideki Ookawa
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Publication number: 20060055319Abstract: An optical device includes a first waveguide layer in which multiple-beam interference occurs, a second wavelength layer which includes a back surface facing the first waveguide layer and a front surface as a light output surface, and an outcoupling layer which is disposed on a back side of the second waveguide layer and faces the first wave guide layer, wherein the outcoupling layer includes a first portion as a layer with light transmission property and second portions which are dispersed in the first portion and differ in optical property from the first portion, and wherein an array of the second portions forms a triangular lattice.Type: ApplicationFiled: November 9, 2005Publication date: March 16, 2006Inventors: Tsuyoshi Uemura, Satoshi Okutani, Hirofumi Kubota, Muneharu Akiyoshi, Naotada Okada, Junichi Tonotani
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Publication number: 20050147922Abstract: In a method for exposing a photosensitive resist layer with near-field light, a liquid film layer is provided between the photosensitive resist layer and a photomask. The photomask has a light-shielding film containing an opening portion whose width is smaller than the wavelength of light emitted from a light source. The photosensitive resist layer is exposed with near-field light through the opening portion and the liquid film layer.Type: ApplicationFiled: March 3, 2005Publication date: July 7, 2005Inventors: Keiji Suzuki, Hideki Ookawa, Junichi Tonotani
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Publication number: 20050112886Abstract: A nanometer size roughened structure is formed on a surface of a light-emitting element, and luminous efficiency is improved. The roughened structure on the surface of the light-emitting element of the invention is formed into the following shape such that the refractive index smoothly changes: (1) the mean diameter of projections on the roughened surface is smaller than the light wavelength; (2) a pitch of the roughened surface is irregular; and (3) positions of the top and bottom of the roughened surface are distributed from their mean values within the light wavelength in order to give a smooth gradient of the refractive index.Type: ApplicationFiled: November 1, 2004Publication date: May 26, 2005Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Koji Asakawa, Akira Fujimoto, Hitoshi Sugiyama, Kenichi Ohashi, Kenji Suzuki, Junichi Tonotani