Patents by Inventor Ryuichi Shiratsuchi
Ryuichi Shiratsuchi 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: 8969123Abstract: In an apparatus for manufacturing a dye-sensitized solar cell, a photosensitization dye solution makes contact with an electrode material layer that functions as a working electrode of a dye-sensitized solar cell so that the photosensitizing dye is adsorbed on the layer. Such an apparatus for manufacturing a dye-sensitized solar cell has a substrate housing section to house a substrate with the electrode material layer formed on its surface, and a circulation mechanism to circulate the photosensitization dye solution in such a way that the solution passes a surface of the substrate housed in the substrate housing section. In such an apparatus, a cross-sectional area of a flow path for the photosensitization dye solution in a portion facing the substrate in the substrate housing section is set smaller than a cross-sectional area of a flow path for the photosensitization dye solution in other portions.Type: GrantFiled: February 24, 2011Date of Patent: March 3, 2015Assignees: Tokyo Electron Limited, Kyushu Institute of TechnolgyInventors: Hiroaki Hayashi, Ryuichi Shiratsuchi, Suehiro Ohkubo, Shuzi Hayase, Taiichi Mure, Yasuhiro Shishida
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Patent number: 8754323Abstract: A dye-sensitized solar cell is provided, wherein it can be produced by a relatively easy and simple process and ensures high conversion efficiency even in cases where the thickness of the porous semiconductor layer is increased. The dye-sensitized solar cell 10 includes, in the interior of or on the conductive-substrate-side surface of the porous semiconductor layer 16, conductive metal film 20, such as a film of tungsten, having a large number of randomly located penetrations 24. Penetrations 24 of the conductive metal film 20 are formed by forming a fine-particle layer on the surface of the porous semiconductor layer, forming a conductive metal film on the surface of the fine-particle layer, and making the fine-particle layer disappear by heating or solvent-cleaning.Type: GrantFiled: June 21, 2007Date of Patent: June 17, 2014Assignees: National University Corporation Kyushu Institute of Technology, Nippon Steel & Sumikin Chemical Co., Ltd.Inventors: Shuzi Hayase, Ryuichi Shiratsuchi, Suehiro Ohkubo, Yoshihiro Yamaguchi
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Patent number: 8748735Abstract: A dye-sensitized solar cell is provided, wherein it can be produced by a relatively easy and simple process and ensures high conversion efficiency even in cases where the thickness of the porous semiconductor layer is increased. The dye-sensitized solar cell 10 includes, in the interior of or on the conductive-substrate-side surface of the porous semiconductor layer 16, conductive metal film 20, such as a film of tungsten, having a large number of randomly located penetrations 24. Penetrations 24 of the conductive metal film 20 are formed by forming a fine-particle layer on the surface of the porous semiconductor layer, forming a conductive metal film on the surface of the fine-particle layer, and making the fine-particle layer disappear by heating or solvent-cleaning.Type: GrantFiled: November 23, 2011Date of Patent: June 10, 2014Assignees: National University Corporation Kyushu Institute of Technology, Nippon Steel & Sumikin Chemical Co., Ltd.Inventors: Shuzi Hayase, Ryuichi Shiratsuchi, Suehiro Ohkubo, Yoshihiro Yamaguchi
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Publication number: 20140116503Abstract: A dye-sensitized solar cell is provided, wherein it can be produced by a relatively easy and simple process and ensures high conversion efficiency even in cases where the thickness of the porous semiconductor layer is increased. The dye-sensitized solar cell 10 includes, in the interior of or on the conductive-substrate-side surface of the porous semiconductor layer 16, conductive metal film 20, such as a film of tungsten, having a large number of randomly located penetrations 24. Penetrations 24 of the conductive metal film 20 are formed by forming a fine-particle layer on the surface of the porous semiconductor layer, forming a conductive metal film on the surface of the fine-particle layer, and making the fine-particle layer disappear by heating or solvent-cleaning.Type: ApplicationFiled: November 23, 2011Publication date: May 1, 2014Applicants: Nippon Steel Chemical Co., Ltd., National University Corporation Kyushu Institute of TechnologyInventors: Shuzi HAYASE, Ryuichi SHIRATSUCHI, Suehiro OHKUBO, Yoshihiro YAMAGUCHI
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Publication number: 20130034930Abstract: In an apparatus for manufacturing a dye-sensitized solar cell, a photosensitization dye solution makes contact with an electrode material layer that functions as a working electrode of a dye-sensitized solar cell so that the photosensitizing dye is adsorbed on the layer. Such an apparatus for manufacturing a dye-sensitized solar cell has a substrate housing section to house a substrate with the electrode material layer formed on its surface, and a circulation mechanism to circulate the photosensitization dye solution in such a way that the solution passes a surface of the substrate housed in the substrate housing section. In such an apparatus, a cross-sectional area of a flow path for the photosensitization dye solution in a portion facing the substrate in the substrate housing section is set smaller than a cross-sectional area of a flow path for the photosensitization dye solution in other portions.Type: ApplicationFiled: February 24, 2011Publication date: February 7, 2013Applicants: Kyushu Institute of Technology, Tokyo Electron LimitedInventors: Hiroaki Hayashi, Ryuichi Shiratsuchi, Suehiro Ohkubo, Shuzi Hayase, Taiichi Mure, Yasuhiro Shishida
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Publication number: 20120073643Abstract: A dye-sensitized solar cell is provided, wherein it can be produced by a relatively easy and simple process and ensures high conversion efficiency even in cases where the thickness of the porous semiconductor layer is increased. The dye-sensitized solar cell 10 includes, in the interior of or on the conductive-substrate-side surface of the porous semiconductor layer 16, conductive metal film 20, such as a film of tungsten, having a large number of randomly located penetrations 24. Penetrations 24 of the conductive metal film 20 are formed by forming a fine-particle layer on the surface of the porous semiconductor layer, forming a conductive metal film on the surface of the fine-particle layer, and making the fine-particle layer disappear by heating or solvent-cleaning.Type: ApplicationFiled: November 23, 2011Publication date: March 29, 2012Applicants: Nippon Steel Chemical Co., Ltd., National University Corporation Kyushu Institute of TechnologyInventors: Shuzi HAYASE, Ryuichi SHIRATSUCHI, Suehiro OHKUBO, Yoshihiro YAMAGUCHI
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Publication number: 20120017974Abstract: A method for adsorption of a photosensitizing dye includes adsorbing the photosensitizing dye to the layer of an electrode material that functions as the working electrode of a dye-sensitized solar cell, within a reaction vessel containing a solution of the photosensitizing dye, wherein a flow of the photosensitizing dye solution is generated by means of a flow generation part in a direction perpendicular to the electrode material layer, a direction parallel thereto or both, and the flow rate of the photosensitizing dye solution to the electrode material layer is higher than the diffusion velocity of the photosensitizing dye.Type: ApplicationFiled: February 24, 2010Publication date: January 26, 2012Applicants: KYUSHU INSTITUTE OF TECHNOLOGY, TOKYO ELECTRON LIMITEDInventors: Hiroaki Hayashi, Ryuichi Shiratsuchi, Suehiro Ohkubo, Masato Takasaki, Shuzi Hayase
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Publication number: 20100151616Abstract: A dye-sensitized solar cell is provided that includes a transparent electrode formed by depositing, in order on a transparent substrate, a transparent conductive film containing tin oxide as a main component, and a compact titanium oxide layer and/or a porous titanium oxide layer, wherein the transparent conductive film, which contains tin oxide as the main component, has a fluorine concentration not exceeding 0.2 wt %, and the transparent conductive film on the transparent substrate has in an X-ray diffraction pattern thereof diffraction peaks attributable to (110), (200), and (211) planes satisfying the conditions that, relative to the sum of the diffraction intensities of the three planes, the ratios of both the (110) and (211) diffraction intensities are larger than 0.25 and smaller than 0.4, and the ratio of the (200) diffraction intensity is larger than 0.25 and smaller than 0.5.Type: ApplicationFiled: February 24, 2010Publication date: June 17, 2010Applicant: KYUSHU INSTITUTE OF TECHNOLOGYInventors: Ryuichi SHIRATSUCHI, Shuzi Hayase
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Publication number: 20090314339Abstract: A dye-sensitized solar cell is provided, wherein it can be produced by a relatively easy and simple process and ensures high conversion efficiency even in cases where the thickness of the porous semiconductor layer is increased. The dye-sensitized solar cell 10 includes, in the interior of or on the conductive-substrate-side surface of the porous semiconductor layer 16, conductive metal film 20, such as a film of tungsten, having a large number of randomly located penetrations 24. Penetrations 24 of the conductive metal film 20 are formed by forming a fine-particle layer on the surface of the porous semiconductor layer, forming a conductive metal film on the surface of the fine-particle layer, and making the fine-particle layer disappear by heating or solvent-cleaning.Type: ApplicationFiled: June 21, 2007Publication date: December 24, 2009Applicants: National University Corporation Kyushu Institute of Technology, Nippon Steel Chemical Co., Ltd.Inventors: Shuzi Hayase, Ryuichi Shiratsuchi, Suehiro Ohkubo, Yoshihiro Yamaguchi
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Publication number: 20060016474Abstract: A dye-sensitized solar cell is provided that includes a transparent electrode formed by depositing, in order on a transparent substrate, a transparent conductive film containing tin oxide as a main component, and a compact titanium oxide layer and/or a porous titanium oxide layer, wherein the transparent conductive film, which contains tin oxide as the main component, has a fluorine concentration not exceeding 0.2 wt %, and the transparent conductive film on the transparent substrate has in an X-ray diffraction pattern thereof diffraction peaks attributable to (110), (200), and (211) planes satisfying the conditions that, relative to the sum of the diffraction intensities of the three planes, the ratios of both the (110) and (211) diffraction intensities are larger than 0.25 and smaller than 0.4, and the ratio of the (200) diffraction intensity is larger than 0.25 and smaller than 0.5.Type: ApplicationFiled: July 19, 2005Publication date: January 26, 2006Inventors: Ryuichi Shiratsuchi, Shuzi Hayase