Patents by Inventor Yasuhiro Hosogi
Yasuhiro Hosogi 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: 20230398523Abstract: A method for producing a vinyl acetate production catalyst containing a carrier, copper, palladium, gold, and an acetate, the method including in the following order: step 1) a step for impregnating the carrier with an alkaline solution; step 2) a step for contact-impregnating the carrier with a solution containing a compound containing copper, a compound containing palladium, and a compound containing gold; step 3) a step for performing reduction treatment; and step 4) a step for causing the carrier to carry the acetate.Type: ApplicationFiled: August 3, 2021Publication date: December 14, 2023Applicant: Resonac CorporationInventors: Kazuhiro KITAGAWA, Yasuhiro HOSOGI, Yasuhiro IWAMA, Kazuki UMEHARA
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Patent number: 9516881Abstract: The Cu- and Ti-containing composition of the present invention contains titanium oxide having a rutile-type titanium oxide content of 15 mol % or more, and at least one divalent copper compound represented by the following formula (1). The Cu- and Ti-containing composition production method of the present invention is characterized by including stirring a mixture containing titanium oxide having a rutile-type titanium oxide content of 15 mol % or more, a divalent copper compound raw material represented by formula (2), water, and an alkaline compound, to thereby cause precipitation. The composition of the present invention exhibits excellent anti-viral property under light and in the dark, and excellent organic compound decomposition activity under light.Type: GrantFiled: December 17, 2012Date of Patent: December 13, 2016Assignee: SHOWA DENKO K.K.Inventors: So Miyaishi, Yasushi Kuroda, Yasuhiro Hosogi, Ding Li
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Patent number: 9248432Abstract: A copper compound-carried titanium oxide photocatalyst which is excellent in a photocatalytic activity and a viral inactivation property and a production process for the same can be provided by a copper compound-carried titanium oxide photocatalyst comprising titanium oxide in which a content of rutile type titanium oxide is 50% by mole or more and a monovalent copper compound and a divalent copper compound which are carried on a surface of the titanium oxide described above and a production process for a copper compound-carried titanium oxide photocatalyst, comprising a step of carrying a monovalent copper compound and a divalent copper compound on a surface of titanium oxide in which a content of rutile type titanium oxide is 50% by mole or more.Type: GrantFiled: June 22, 2012Date of Patent: February 2, 2016Assignees: THE UNIVERSITY OF TOKYO, SHOW A DENKO K.K.Inventors: Kazuhito Hashimoto, Masahiro Miyauchi, Xiaoqing Qiu, Kayano Sunada, Yasushi Kuroda, Yasuhiro Hosogi, Ding Li, Yoshiki Shimodaira
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Patent number: 9210939Abstract: The Cu- and Ti-containing composition of the present invention contains titanium oxide including rutile-crystal-type titanium oxide, and a divalent copper compound, wherein the rutile-crystal-type titanium oxide exhibits the most intense diffraction peak attributed to rutile-type titanium oxide having a full width at half maximum of 0.65° or less, in a Cu—K? line X-ray diffraction pattern, which is obtained by plotting intensity of diffraction line with respect to diffraction angle 2?. The composition exhibits excellent anti-viral property under light and in the dark, and excellent organic compound degradability under light.Type: GrantFiled: December 17, 2012Date of Patent: December 15, 2015Assignee: SHOWA DENKO K.K.Inventors: So Miyaishi, Yasushi Kuroda, Yasuhiro Hosogi, Ding Li
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Patent number: 9061272Abstract: The present invention relates to a copper ion-modified tungsten oxide photocatalyst subjected to chemical etching treatment with a basic aqueous solution in which a rate of change in diffuse reflectance of the photocatalyst as measured at a wavelength of 700 nm between before and after irradiated with an ultraviolet light in atmospheric air is less than 10%; and a process for producing a copper ion-modified tungsten oxide photocatalyst which includes a copper ion modifying step of modifying a tungsten oxide powder with a copper ion; a chemical etching step of subjecting the tungsten oxide powder to chemical etching treatment with a basic aqueous solution, the chemical etching treatment being carried out either before or after the copper ion modifying step; and a drying step of drying the product obtained after the above steps at a temperature of 200° C. or lower.Type: GrantFiled: February 15, 2011Date of Patent: June 23, 2015Assignee: SHOWA DENKO K.K.Inventor: Yasuhiro Hosogi
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Publication number: 20140322353Abstract: The Cu- and Ti-containing composition of the present invention contains titanium oxide having a rutile-type titanium oxide content of 15 mol % or more, and at least one divalent copper compound represented by the following formula (1). The Cu- and Ti-containing composition production method of the present invention is characterized by including stirring a mixture containing titanium oxide having a rutile-type titanium oxide content of 15 mol % or more, a divalent copper compound raw material represented by formula (2), water, and an alkaline compound, to thereby cause precipitation. The composition of the present invention exhibits excellent anti-viral property under light and in the dark, and excellent organic compound decomposition activity under light.Type: ApplicationFiled: December 17, 2012Publication date: October 30, 2014Applicant: SHOWA DENKO K.K.Inventors: So Miyaishi, Yasushi Kuroda, Yasuhiro Hosogi, Ding Li
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Publication number: 20140294989Abstract: The Cu- and Ti-containing composition of the present invention contains titanium oxide including rutile-crystal-type titanium oxide, and a divalent copper compound, wherein the rutile-crystal-type titanium oxide exhibits the most intense diffraction peak attributed to rutile-type titanium oxide having a full width at half maximum of 0.65° or less, in a Cu—K? line X-ray diffraction pattern, which is obtained by plotting intensity of diffraction line with respect to diffraction angle 2?. The composition exhibits excellent anti-viral property under light and in the dark, and excellent organic compound degradability under light.Type: ApplicationFiled: December 17, 2012Publication date: October 2, 2014Applicant: SHOWA DENKO K.K.Inventors: So Miyaishi, Yasushi Kuroka, Yasuhiro Hosogi, Ding Li
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Patent number: 8728973Abstract: The present invention relates to a photocatalytic material having a visible light activity which includes a tungsten-doped titanium oxide or a tungsten/gallium-codoped titanium oxide, and a divalent copper salt and/or a trivalent iron salt supported on a surface of the doped or codoped titanium oxide, and a process for producing the photocatalytic material.Type: GrantFiled: July 29, 2010Date of Patent: May 20, 2014Assignees: The University of Tokyo, Showa Denko K.K.Inventors: Kazuhito Hashimoto, Hiroshi Irie, Huogen Yu, Yasushi Kuroda, Yasuhiro Hosogi
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Patent number: 8652991Abstract: The present invention relates to a method for producing a tungsten oxide photocatalyst having titanium oxide and copper ion supported thereon, comprising dissolving urea in a solution in which copper-ion supporting tungsten oxide particles are uniformly dispersed in a titanium oxide sol, thermally decomposing the urea to thereby allow the titanium oxide to precipitate on the surface of copper ion-supporting tungsten oxide and to be supported thereon; and a tungsten oxide photocatalyst modified by both titanium oxide and copper ion obtained by the method, wherein the rate of change of diffuse reflectivity (at wavelength of 700 nm) is less than 3% before and after the irradiation of ultraviolet and the titanium oxide is supported on the tungsten oxide in an island shape of 1 to 100 nm in size. The tungsten oxide photocatalyst having titanium oxide and copper ion supported thereon of the present invention exhibits high catalyst activity under visible light irradiation.Type: GrantFiled: May 23, 2012Date of Patent: February 18, 2014Assignee: Showa Denko K.K.Inventors: Yasuhiro Hosogi, Yasushi Kuroda
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Publication number: 20130281283Abstract: A copper compound-carried titanium oxide photocatalyst which is excellent in a photocatalytic activity and a viral inactivation property and a production process for the same can be provided by a copper compound-carried titanium oxide photocatalyst comprising titanium oxide in which a content of rutile type titanium oxide is 50% by mole or more and a monovalent copper compound and a divalent copper compound which are carried on a surface of the titanium oxide described above and a production process for a copper compound-carried titanium oxide photocatalyst, comprising a step of carrying a monovalent copper compound and a divalent copper compound on a surface of titanium oxide in which a content of rutile type titanium oxide is 50% by mole or more.Type: ApplicationFiled: June 22, 2012Publication date: October 24, 2013Applicants: THE UNIVERSTIY OF TOKYO, SHOWA DENKO K.K.Inventors: Kazuhito Hashimoto, Masahiro Miyauchi, Xiaoqing Qiu, Kayano Sunada, Yasushi Kuroda, Yasuhiro Hosogi, Ding Li, Yoshiki Shimodaira
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Publication number: 20130178361Abstract: The present invention relates to a process for producing a dispersion of a copper ion-modified tungsten oxide photocatalyst, including the steps of subjecting copper ion-modified tungsten oxide particles to mechanical pulverization treatment in a solvent and then contacting the resulting dispersion of the pulverized particles with an oxygen gas or ozone; and a copper ion-modified tungsten oxide photocatalyst which is produced by subjecting copper ion-modified tungsten oxide particles to mechanical pulverization treatment in a solvent and then contacting the resulting dispersion of the pulverized particles with an oxidative gas, wherein a photocatalyst powder obtained by drying the dispersion after being contacted with the oxidative gas exhibits a diffuse reflectance of 75% or more as measured at a wavelength of 700 nm.Type: ApplicationFiled: July 8, 2011Publication date: July 11, 2013Applicant: SHOWA DENKO K.K.Inventor: Yasuhiro Hosogi
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Publication number: 20130095998Abstract: The present invention relates to a method for producing a tungsten oxide photocatalyst having titanium oxide and copper ion supported thereon, comprising dissolving urea in a solution in which copper-ion supporting tungsten oxide particles are uniformly dispersed in a titanium oxide sol, thermally decomposing the urea to thereby allow the titanium oxide to precipitate on the surface of copper ion-supporting tungsten oxide and to be supported thereon; and a tungsten oxide photocatalyst modified by both titanium oxide and copper ion obtained by the method, wherein the rate of change of diffuse reflectivity (at wavelength of 700 nm) is less than 3% before and after the irradiation of ultraviolet and the titanium oxide is supported on the tungsten oxide in an island shape of 1 to 100 nm in size. The tungsten oxide photocatalyst having titanium oxide and copper ion supported thereon of the present invention exhibits high catalyst activity under visible light irradiation.Type: ApplicationFiled: May 23, 2012Publication date: April 18, 2013Applicant: SHOWA DENKO K.K.Inventors: Yasuhiro Hosogi, Yasushi Kuroda
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Publication number: 20130053238Abstract: The present invention relates to a copper ion-modified tungsten oxide photocatalyst subjected to chemical etching treatment with a basic aqueous solution in which a rate of change in diffuse reflectance of the photocatalyst as measured at a wavelength of 700 nm between before and after irradiated with an ultraviolet light in atmospheric air is less than 10%; and a process for producing a copper ion-modified tungsten oxide photocatalyst which includes a copper ion modifying step of modifying a tungsten oxide powder with a copper ion; a chemical etching step of subjecting the tungsten oxide powder to chemical etching treatment with a basic aqueous solution, the chemical etching treatment being carried out either before or after the copper ion modifying step; and a drying step of drying the product obtained after the above steps at a temperature of 200° C. or lower.Type: ApplicationFiled: February 15, 2011Publication date: February 28, 2013Applicant: SHOWA DENKO K.K.Inventor: Yasuhiro Hosogi
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Publication number: 20120201714Abstract: To provide a method for inactivating a virus which is in contact with a photocatalyst material, the method including irradiating the photocatalyst material with light from a light source, and an article provided with an anti-viral property, the article containing a visible-light-responsive photocatalyst material deposited on the surface thereof.Type: ApplicationFiled: October 19, 2010Publication date: August 9, 2012Applicant: The University of TokyoInventors: Kazuhito Hashimoto, Kayano Sunada, Yoshinobu Kubota, Hitoshi Ishiguro, Ryuichi Nakano, Jitsuo Kajioka, Yanyan Yao, Yasushi Kuroda, Yasuhiro Hosogi
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Publication number: 20120135861Abstract: The present invention relates to a photocatalytic material having a visible light activity which includes a tungsten-doped titanium oxide or a tungsten/gallium-codoped titanium oxide, and a divalent copper salt and/or a trivalent iron salt supported on a surface of the doped or codoped titanium oxide, and a process for producing the photocatalytic material.Type: ApplicationFiled: July 29, 2010Publication date: May 31, 2012Applicants: SHOWA DENKO K.K., THE UNIVERSITY OF TOKYOInventors: Kazuhito Hashimoto, Hiroshi Irie, Huogen Yu, Yasushi Kuroda, Yasuhiro Hosogi
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Patent number: 5338380Abstract: High strength low carbon steel wire rods excellent in the cold drawing property have a composite structure in which an acicular low temperature transformation phase comprising a martensite, bainite and/or the mixed structure thereof that comprises, by weight %,C: 0.02-0.30%,Si: less than 2-5%,Mn: less than 2.5% andthe balance of iron and inevitable impurities and that may partially contain retained austenite is uniformly dispersed at the volume ratio of from 10 to 70% in the ferrite phase, and in which the weight of (C+N) in solution the ferrite phase is less than 40 ppm.Type: GrantFiled: May 27, 1992Date of Patent: August 16, 1994Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Toshiaki Yutori, Masaaki Katsumata, Takehiko Kato, Yasuhiro Hosogi
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Patent number: 5141570Abstract: High strength low carbon steel wire rods excellent in the cold drawing property have a composite structure in which an acicular low temperature transformation phase comprising a martensite, bainite and/or the mixed structure thereof that comprises, by weight %,C: 0.02-0.30%,Si: less than 2.5%,Mn: less than 2.5% andthe balance of iron and inevitable impurities and that may partially contain retained austenite is uniformly dispersed at the volume ratio of from 10 to 70% in the ferrite phase, and in which the weight of (C+N) in solution in the ferrite phase is less than 40 ppm.Type: GrantFiled: December 19, 1990Date of Patent: August 25, 1992Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Toshiaki Yutori, Takehiko Kato, Yasuhiro Hosogi
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Patent number: 4578124Abstract: High strength low carbon steels having good ultraworkability which comprises 0.01-0.3 wt % of C, below 1.5 wt % of Si, 0.3-2.5 wt % of Mn and the balance of iron and inevitable impurities. In the steel, a low temperature transformation product phase consisting of acicular martensite, bainite or a mixed structure thereof is uniformly dispersed in a ferrite phase in an amount by volume of 15-40%. Wire articles of these steels and methods for making the steels are also disclosed.Type: GrantFiled: December 27, 1984Date of Patent: March 25, 1986Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Toshiaki Yutori, Masatoshi Sudo, Takehiko Kato, Yasuhiro Hosogi