Patents by Inventor Tomohiro KUROYAMA
Tomohiro KUROYAMA 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: 11231208Abstract: A solar heat collector tube in which at least an infrared reflective layer, a sunlight-heat conversion layer and an anti-reflection layer are provided on the outer surface of a tube through the interior of which a heat medium can flow, wherein the infrared reflective layer in the solar heat collector tube is an Ag layer having Nb dispersed therein, the content of Nb being 0.1 at % to 31.8 at %.Type: GrantFiled: November 18, 2016Date of Patent: January 25, 2022Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, JAPAN FINE CERAMICS CENTERInventors: Takuhito Tsutsui, Toru Sasatani, Kazuto Noritake, Yoshiki Okuhara, Tomohiro Kuroyama, Daisuke Igimi
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Patent number: 11149987Abstract: A solar heat collector tube in which at least an infrared reflective layer, a sunlight-heat conversion layer and an anti-reflection layer are provided on the outer surface of a tube, through the interior of which a heat medium can flow, wherein the infrared reflective layer is an Ag layer in which silicon, silicon nitride or a mixture thereof is dispersed, and a method for producing the solar heat collector tube wherein the infrared reflective layer that is an Ag layer, in which silicon, silicon nitride or a mixture thereof is dispersed, is formed by sputtering in the presence of a gas including nitrogen gas, with Ag and silicon being used as targets.Type: GrantFiled: November 18, 2016Date of Patent: October 19, 2021Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, JAPAN FINE CERAMICS CENTERInventors: Takuhito Tsutsui, Toru Sasatani, Kazuto Noritake, Yoshiki Okuhara, Tomohiro Kuroyama, Daisuke Igimi
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Publication number: 20210172654Abstract: This invention provides a solar heat-collecting pipe that includes, in the stated order from the inner side on the outer surface of a ferrous material pipe through the interior of which a heat transfer medium is allowed to flow, at least a first diffusion-preventing layer, a second diffusion-preventing layer, an infrared radiation-reflecting layer, a sunlight-to-heat conversion layer and an anti-reflection layer. The first diffusion-preventing layer includes at least one selected from the group consisting of silicon oxide, aluminum oxide and chromium oxide. The second diffusion-preventing layer includes at least one selected from the group consisting of tantalum nitride, tantalum oxynitride, titanium nitride, titanium oxynitride, niobium nitride, and niobium oxynitride.Type: ApplicationFiled: July 26, 2019Publication date: June 10, 2021Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, JAPAN FINE CERAMICS CENTERInventors: Takuhito TSUTSUI, Kazuto NORITAKE, Yoshiki OKUHARA, Tomohiro KUROYAMA, Daisuke IGIMI
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Patent number: 11009264Abstract: A solar heat collector tube in which at least an infrared reflective layer, a sunlight-heat conversion layer and an anti-reflection layer are provided on the outer surface of a tube, through the interior of which a heat medium can flow, wherein the infrared reflective layer in the solar heat collector tube has a multilayer structure in which an Ag layer, having dispersed therein at least one metal selected from the group consisting of Mo, W, Ta, Nb and Al, is sandwiched between two metal protective layers.Type: GrantFiled: November 18, 2016Date of Patent: May 18, 2021Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, JAPAN FINE CERAMICS CENTERInventors: Takuhito Tsutsui, Toru Sasatani, Kazuto Noritake, Yoshiki Okuhara, Tomohiro Kuroyama, Daisuke Igimi
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Publication number: 20190041098Abstract: A solar heat collector tube in which at least an infrared reflective layer, a sunlight-heat conversion layer and an anti-reflection layer are provided on the outer surface of a tube through the interior of which a heat medium can flow, wherein the infrared reflective layer in the solar heat collector tube is an Ag layer having Nb dispersed therein, the content of Nb being 0.1 at % to 31.8 at %.Type: ApplicationFiled: November 18, 2016Publication date: February 7, 2019Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, JAPAN FINE CERAMICS CENTERInventors: Takuhito TSUTSUI, Toru SASATANI, Kazuto NORITAKE, Yoshiki OKUHARA, Tomohiro KUROYAMA, Daisuke IGIMI
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Publication number: 20190041097Abstract: A solar heat collector tube in which at least an infrared reflective layer, a sunlight-heat conversion layer and an anti-reflection layer are provided on the outer surface of a tube, through the interior of which a heat medium can flow, wherein the infrared reflective layer in the solar heat collector tube has a multilayer structure in which an Ag layer, having dispersed therein at least one metal selected from the group consisting of Mo, W, Ta, Nb and Al, is sandwiched between two metal protective layers.Type: ApplicationFiled: November 18, 2016Publication date: February 7, 2019Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, JAPAN FINE CERAMICS CENTERInventors: Takuhito TSUTSUI, Toru SASATANI, Kazuto NORITAKE, Yoshiki OKUHARA, Tomohiro KUROYAMA, Daisuke IGIMI
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Publication number: 20190032966Abstract: A solar heat collector tube in which at least an infrared reflective layer, a sunlight-heat conversion layer and an anti-reflection layer are provided on the outer surface of a tube, through the interior of which a heat medium can flow, wherein the infrared reflective layer is an Ag layer in which silicon, silicon nitride or a mixture thereof is dispersed, and a method for producing the solar heat collector tube wherein the infrared reflective layer that is an Ag layer, in which silicon, silicon nitride or a mixture thereof is dispersed, is formed by sputtering in the presence of a gas including nitrogen gas, with Ag and silicon being used as targets.Type: ApplicationFiled: November 18, 2016Publication date: January 31, 2019Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, JAPAN FINE CERAMICS CENTERInventors: Takuhito TSUTSUI, Toru SASATANI, Kazuto NORITAKE, Yoshiki OKUHARA, Tomohiro KUROYAMA, Daisuke IGIMI
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Publication number: 20180017289Abstract: A solar heat collection tube 1 of the present invention has: a tube 3 in which a heat medium 2 can flow; an infrared reflective layer 4 formed on an outer surface of the tube 3; a sunlight-to-heat conversion layer 5 formed on the infrared reflective layer 4 and containing manganese silicide; and an anti-reflection layer 6 formed on the sunlight-to-heat conversion layer 5. Preferably, the manganese silicide used in the sunlight-to-heat conversion layer 5 is a semiconductor. The solar heat collection tube 1 of the present invention allows sunlight to be converted into heat efficiently.Type: ApplicationFiled: December 11, 2015Publication date: January 18, 2018Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, JAPAN FINE CERAMICS CENTERInventors: Takuhito TSUTSUI, Toru SASATANI, Kazuto NORITAKE, Yoshiki OKUHARA, Tomohiro KUROYAMA, Daisuke IGIMI