Patents by Inventor Shunro Yamaguchi
Shunro Yamaguchi 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: 9783548Abstract: A method for producing an epoxy compound by reacting a compound having a carbon-carbon double bond with hydrogen peroxide in the coexistence of the compound having a carbon-carbon double bond, aqueous hydrogen peroxide, a powder of a solid catalyst support and a powder of a solid catalyst, wherein the solid catalyst comprises an isopolyacid, and the isopolyacid is produced from a catalyst raw material comprising (a) tungstic acid or a salt thereof and (b) at least one selected from the group consisting of a salt of an alkaline earth metal and a cationic polymer.Type: GrantFiled: November 17, 2014Date of Patent: October 10, 2017Assignees: JX NIPPON OIL & ENERGY CORPORATION, OSAKA UNIVERSITYInventors: Junko Ichihara, Shunro Yamaguchi, Atsushi Kameyama, Takashi Suzuki, Takashi Morikita
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Publication number: 20160347763Abstract: A method for producing an epoxy compound by reacting a compound having a carbon-carbon double bond with hydrogen peroxide in the coexistence of the compound having a carbon-carbon double bond, aqueous hydrogen peroxide, a powder of a solid catalyst support and a powder of a solid catalyst, wherein the solid catalyst comprises an isopolyacid, and the isopolyacid is produced from a catalyst raw material comprising (a) tungstic acid or a salt thereof and (b) at least one selected from the group consisting of a salt of an alkaline earth metal and a cationic polymer.Type: ApplicationFiled: November 17, 2014Publication date: December 1, 2016Applicants: JX NIPPON OIL & ENERGY CORPORATION, OSAKA UNIVERSITYInventors: Junko ICHIHARA, Shunro YAMAGUCHI, Atsushi KAMEYAMA, Takashi SUZUKI, Takashi MORIKITA
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Patent number: 9284326Abstract: The present invention provides a method for producing an epoxy compound by expoxidation of an olefin compound with good productivity wherein a compound having a carbon-carbon double bond is reacted with hydrogen peroxide in the coexistence of (a) a compound having a carbon-carbon double bond, (b) a hydrogen peroxide solution, (c) a powdered solid catalyst support and (d) a powdered catalyst and optionally (e) an organic solvent, the total mass of (c) and (d) being 100 percent by mass or less on the basis of the total mass of (a), (b) and (e).Type: GrantFiled: April 26, 2013Date of Patent: March 15, 2016Assignees: JX Nippon Oil & Energy Corporation, OSAKA UNIVERSITYInventors: Junko Ichihara, Shunro Yamaguchi, Atsushi Kameyama, Takashi Suzuki, Takashi Morikita
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Patent number: 9266899Abstract: In order to produce an epoxy compound with a less chlorine content at a higher reaction rate and yield, the present invention provides a method for producing an epoxy compound by reacting a compound having a carbon-carbon double bond with hydrogen peroxide in the coexistence of the compound having a carbon-carbon double bond, the hydrogen peroxide solution, a powdered solid catalyst support and a powdered solid catalyst all together, the solid catalyst comprising isopolyacids produced from (a) tungstic acid or a salt thereof and (b) a quaternary ammonium salt compound and/or a pyridinium salt, selected from halogen-free compounds.Type: GrantFiled: April 26, 2013Date of Patent: February 23, 2016Assignees: JX Nippon Oil & Energy Corporation, OSAKA UNIVERSITYInventors: Junko Ichihara, Shunro Yamaguchi, Atsushi Kameyama, Takashi Suzuki, Takashi Morikita
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Patent number: 9212188Abstract: The present invention provides a method for producing an alicyclic diepoxy compound at a higher yield by carrying out epoxidation of an alicyclic olefin compound at a higher reaction rate. The method is a method for producing an alicyclic diepoxy compound represented by formula (1) below by reacting an alicyclic olefin compound represented by formula (2) below with hydrogen peroxide in the coexistence of the alicyclic olefin compound represented by formula (2) below, a hydrogen peroxide solution, a powdered solid catalyst support and a powdered solid catalyst all together: wherein R1 to R12 are each hydrogen, halogen, an alkyl group optionally having halogen or an alkoxy group optionally having a substituent.Type: GrantFiled: April 26, 2013Date of Patent: December 15, 2015Assignees: JX Nippon Oil & Enery Corporation, OSAKA UNIVERSITYInventors: Junko Ichihara, Shunro Yamaguchi, Atsushi Kameyama, Takashi Suzuki, Takashi Morikita
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Patent number: 9187443Abstract: A method is provided for carrying out epoxidation of an olefin compound with good productivity. The method produces an epoxy compound by reacting a compound having a carbon-carbon double bond with hydrogen peroxide by carrying out repeatedly or continuously the following steps: (1) reacting a compound having a carbon-carbon double bond with hydrogen peroxide in the coexistence of (a) the compound having a carbon-carbon double bond, (b) a hydrogen peroxide solution, (c) a powdered solid catalyst support, and (d) a powdered solid catalyst, and optionally further (e) an organic solvent to produce an epoxy compound; (2) separating the epoxy compound reaction product from the reaction mixture produced in (1); and (3) adding (d) and also adding (a), (b), (c), and optionally further (e) to the mixture of the powdered solid catalyst support and powdered solid catalyst after separating the reaction product in (2).Type: GrantFiled: April 26, 2013Date of Patent: November 17, 2015Assignees: JX Nippon Oil & Energy Corporation, OSAKA UNIVERSITYInventors: Junko Ichihara, Shunro Yamaguchi, Atsushi Kameyama, Takashi Suzuki, Takashi Morikita
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Publication number: 20150141677Abstract: A method is provided for carrying out epoxidation of an olefin compound with good productivity. The method produces an epoxy compound by reacting a compound having a carbon-carbon double bond with hydrogen peroxide by carrying out repeatedly or continuously the following steps: (1) reacting a compound having a carbon-carbon double bond with hydrogen peroxide in the coexistence of (a) the compound having a carbon-carbon double bond, (b) a hydrogen peroxide solution, (c) a powdered solid catalyst support, and (d) a powdered solid catalyst, and optionally further (e) an organic solvent to produce an epoxy compound; (2) separating the epoxy compound reaction product from the reaction mixture produced in (1); and (3) adding (d) and also adding (a), (b), (c), and optionally further (e) to the mixture of the powdered solid catalyst support and powdered solid catalyst after separating the reaction product in (2).Type: ApplicationFiled: April 26, 2013Publication date: May 21, 2015Applicant: OSAKA UNIVERSITYInventors: Junko Ichihara, Shunro Yamaguchi, Atsushi Kameyama, Takashi Suzuki, Takashi Morikita
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Publication number: 20150141676Abstract: In order to produce an epoxy compound with a less chlorine content at a higher reaction rate and yield, the present invention provides a method for producing an epoxy compound by reacting a compound having a carbon-carbon double bond with hydrogen peroxide in the coexistence of the compound having a carbon-carbon double bond, the hydrogen peroxide solution, a powdered solid catalyst support and a powdered solid catalyst all together, the solid catalyst comprising isopolyacids produced from (a) tungstic acid or a salt thereof and (b) a quaternary ammonium salt compound and/or a pyridinium salt, selected from halogen-free compounds.Type: ApplicationFiled: April 26, 2013Publication date: May 21, 2015Inventors: Junko Ichihara, Shunro Yamaguchi, Atsushi Kameyama, Takashi Suzuki, Takashi Morikita
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Publication number: 20150141675Abstract: The present invention provides a method for producing an alicyclic diepoxy compound at a higher yield by carrying out epoxidation of an alicyclic olefin compound at a higher reaction rate. The method is a method for producing an alicyclic diepoxy compound represented by formula (1) below by reacting an alicyclic olefin compound represented by formula (2) below with hydrogen peroxide in the coexistence of the alicyclic olefin compound represented by formula (2) below, a hydrogen peroxide solution, a powdered solid catalyst support and a powdered solid catalyst all together: wherein R1 to R12 are each hydrogen, halogen, an alkyl group optionally having halogen or an alkoxy group optionally having a substituent.Type: ApplicationFiled: April 26, 2013Publication date: May 21, 2015Inventors: Junko Ichihara, Shunro Yamaguchi, Atsushi Kameyama, Takashi Suzuki, Takashi Morikita
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Publication number: 20150094479Abstract: The present invention provides a method for producing an epoxy compound by expoxidation of an olefin compound with good productivity wherein a compound having a carbon-carbon double bond is reacted with hydrogen peroxide in the coexistence of (a) a compound having a carbon-carbon double bond, (b) a hydrogen peroxide solution, (c) a powdered solid catalyst support and (d) a powdered catalyst and optionally (e) an organic solvent, the total mass of (c) and (d) being 100 percent by mass or less on the basis of the total mass of (a), (b) and (e).Type: ApplicationFiled: April 26, 2013Publication date: April 2, 2015Inventors: Junko Ichihara, Shunro Yamaguchi, Atsushi Kameyama, Takashi Suzuki, Takashi Morikita
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Patent number: 7683195Abstract: It is an object to provide a novel material that can quickly form metal silver even at a low temperature of approximately 210° C. or less. This serves as a metal silver forming material that includes a silver ?-ketocarboxylate. By heating this forming material, it is possible to form metal silver quickly even at a low temperature of approximately 210° C. or less. Examples of the silver ?-ketocarboxylate include silver isobutyrylacetate, silver benzoylacetate, silver acetoacetate, silver propionylacetate, silver ?-methylacetoacetate, and silver ?-ethylacetoacetate.Type: GrantFiled: June 22, 2006Date of Patent: March 23, 2010Assignees: Osaka Industrial Promotional Organization, Osaka UniversityInventors: Katsuaki Suganuma, Shunro Yamaguchi, Mariko Hatamura
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Publication number: 20090209693Abstract: It is an object to provide a novel material that can quickly form metal silver even at a low temperature of approximately 210° C. or less. This serves as a metal silver forming material that includes a silver ?-ketocarboxylate. By heating this forming material, it is possible to form metal silver quickly even at a low temperature of approximately 210° C. or less. Examples of the silver ?-ketocarboxylate include silver isobutyrylacetate, silver benzoylacetate, silver acetoacetate, silver propionylacetate, silver ?-methylacetoacetate, and silver ?-ethylacetoacetate.Type: ApplicationFiled: June 22, 2006Publication date: August 20, 2009Applicants: OSAKA INDUSTRIAL PROMOTION, OSAKA UNIVERSITYInventors: Katsuaki Suganuma, Shunro Yamaguchi, Mariko Hatamura