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).

  • Patent number: 9783548
    Abstract: 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: Grant
    Filed: November 17, 2014
    Date of Patent: October 10, 2017
    Assignees: JX NIPPON OIL & ENERGY CORPORATION, OSAKA UNIVERSITY
    Inventors: Junko Ichihara, Shunro Yamaguchi, Atsushi Kameyama, Takashi Suzuki, Takashi Morikita
  • Publication number: 20160347763
    Abstract: 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: Application
    Filed: November 17, 2014
    Publication date: December 1, 2016
    Applicants: JX NIPPON OIL & ENERGY CORPORATION, OSAKA UNIVERSITY
    Inventors: Junko ICHIHARA, Shunro YAMAGUCHI, Atsushi KAMEYAMA, Takashi SUZUKI, Takashi MORIKITA
  • Patent number: 9284326
    Abstract: 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: Grant
    Filed: April 26, 2013
    Date of Patent: March 15, 2016
    Assignees: JX Nippon Oil & Energy Corporation, OSAKA UNIVERSITY
    Inventors: Junko Ichihara, Shunro Yamaguchi, Atsushi Kameyama, Takashi Suzuki, Takashi Morikita
  • Patent number: 9266899
    Abstract: 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: Grant
    Filed: April 26, 2013
    Date of Patent: February 23, 2016
    Assignees: JX Nippon Oil & Energy Corporation, OSAKA UNIVERSITY
    Inventors: Junko Ichihara, Shunro Yamaguchi, Atsushi Kameyama, Takashi Suzuki, Takashi Morikita
  • Patent number: 9212188
    Abstract: 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: Grant
    Filed: April 26, 2013
    Date of Patent: December 15, 2015
    Assignees: JX Nippon Oil & Enery Corporation, OSAKA UNIVERSITY
    Inventors: Junko Ichihara, Shunro Yamaguchi, Atsushi Kameyama, Takashi Suzuki, Takashi Morikita
  • Patent number: 9187443
    Abstract: 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: Grant
    Filed: April 26, 2013
    Date of Patent: November 17, 2015
    Assignees: JX Nippon Oil & Energy Corporation, OSAKA UNIVERSITY
    Inventors: Junko Ichihara, Shunro Yamaguchi, Atsushi Kameyama, Takashi Suzuki, Takashi Morikita
  • Publication number: 20150141677
    Abstract: 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: Application
    Filed: April 26, 2013
    Publication date: May 21, 2015
    Applicant: OSAKA UNIVERSITY
    Inventors: Junko Ichihara, Shunro Yamaguchi, Atsushi Kameyama, Takashi Suzuki, Takashi Morikita
  • Publication number: 20150141676
    Abstract: 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: Application
    Filed: April 26, 2013
    Publication date: May 21, 2015
    Inventors: Junko Ichihara, Shunro Yamaguchi, Atsushi Kameyama, Takashi Suzuki, Takashi Morikita
  • Publication number: 20150141675
    Abstract: 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: Application
    Filed: April 26, 2013
    Publication date: May 21, 2015
    Inventors: Junko Ichihara, Shunro Yamaguchi, Atsushi Kameyama, Takashi Suzuki, Takashi Morikita
  • Publication number: 20150094479
    Abstract: 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: Application
    Filed: April 26, 2013
    Publication date: April 2, 2015
    Inventors: Junko Ichihara, Shunro Yamaguchi, Atsushi Kameyama, Takashi Suzuki, Takashi Morikita
  • Patent number: 7683195
    Abstract: 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: Grant
    Filed: June 22, 2006
    Date of Patent: March 23, 2010
    Assignees: Osaka Industrial Promotional Organization, Osaka University
    Inventors: Katsuaki Suganuma, Shunro Yamaguchi, Mariko Hatamura
  • Publication number: 20090209693
    Abstract: 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: Application
    Filed: June 22, 2006
    Publication date: August 20, 2009
    Applicants: OSAKA INDUSTRIAL PROMOTION, OSAKA UNIVERSITY
    Inventors: Katsuaki Suganuma, Shunro Yamaguchi, Mariko Hatamura