Patents by Inventor Takashi Morikita

Takashi Morikita 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: 10373758
    Abstract: It is an object to provide an electrically insulating oil composition that can maintain dielectric breakdown voltage high in a wide temperature range of ?50° C. to 65° C., and can suppress a decrease in dielectric breakdown voltage even in the case of use at high temperature for a long time, and there is provided an electrically insulating oil composition comprising 1,1-diphenylethane and benzyltoluene, wherein the proportion of a para isomer in the benzyltoluene is 45% by mass or more based on a total amount of the benzyltoluene.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: August 6, 2019
    Assignee: JXTG NIPPON OIL & ENERGY CORPORATION
    Inventors: Takashi Morikita, Hiroyuki Hoshino
  • 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
  • Patent number: 9783469
    Abstract: A first method for refining dicyclopentadiene of the present invention is characterized in that the method separates and recovers dicyclopentadiene by distilling the crude dicyclopentadiene that contains dicyclopentadiene and is obtained by removing a C5 fraction and a BTX fraction from the reaction product obtained by dimerization reaction of the cracked gasoline by-produced in an ethylene plant that uses as feed stock a C2 fraction, a C3 fraction and a C4 fraction. A second method for refining dicyclopentadiene of the present invention is characterized in that the dicyclopentadiene-containing fraction refined by distillation is brought into contact with an inert gas or a hydrocarbon gas having 1 to 3 carbon atoms.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: October 10, 2017
    Assignees: JX NIPPON OIL & ENERGY CORPORATION, JX NIPPON CHEMICAL TEXAS INC.
    Inventors: Takaaki Takeshita, Takeshi Omata, Takashi Suzuki, Takashi Morikita, Satoshi Mori
  • 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
  • Publication number: 20160225528
    Abstract: It is an object to provide an electrically insulating oil composition that can maintain dielectric breakdown voltage high in a wide temperature range of ?50° C. to 65° C., and can suppress a decrease in dielectric breakdown voltage even in the case of use at high temperature for a long time, and there is provided an electrically insulating oil composition comprising 1,1-diphenylethane and benzyltoluene, wherein the proportion of a para isomer in the benzyltoluene is 45% by mass or more based on a total amount of the benzyltoluene.
    Type: Application
    Filed: September 5, 2014
    Publication date: August 4, 2016
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Takashi MORIKITA, Hiroyuki HOSHINO
  • Publication number: 20160090339
    Abstract: A first method for refining dicyclopentadiene of the present invention is characterized in that the method separates and recovers dicyclopentadiene by distilling the crude dicyclopentadiene that contains dicyclopentadiene and is obtained by removing a C5 fraction and a BTX fraction from the reaction product obtained by dimerization reaction of the cracked gasoline by-produced in an ethylene plant that uses as feed stock a C2 fraction, a C3 fraction and a C4 fraction. A second method for refining dicyclopentadiene of the present invention is characterized in that the dicyclopentadiene-containing fraction refined by distillation is brought into contact with an inert gas or a hydrocarbon gas having 1 to 3 carbon atoms.
    Type: Application
    Filed: December 8, 2015
    Publication date: March 31, 2016
    Applicants: JX NIPPON OIL & ENERGY CORPORATION, JX NIPPON CHEMICAL TEXAS INC.
    Inventors: Takaaki TAKESHITA, Takeshi OMATA, Takashi SUZUKI, Takashi MORIKITA, Satoshi MORI
  • 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: 9242909
    Abstract: A first method for refining dicyclopentadiene of the present invention is characterized in that the method separates and recovers dicyclopentadiene by distilling the crude dicyclopentadiene that contains dicyclopentadiene and is obtained by removing a C5 fraction and a BTX fraction from the reaction product obtained by dimerization reaction of the cracked gasoline by-produced in an ethylene plant that uses as feed stock a C2 fraction, a C3 fraction and a C4 fraction. A second method for refining dicyclopentadiene of the present invention is characterized in that the dicyclopentadiene-containing fraction refined by distillation is brought into contact with an inert gas or a hydrocarbon gas having 1 to 3 carbon atoms.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: January 26, 2016
    Assignees: JX NIPPON OIL & ENERGY CORPORATION, JX NIPPON CHEMICAL TEXAS INC.
    Inventors: Takaaki Takeshita, Takeshi Omata, Takashi Suzuki, Takashi Morikita, Satoshi Mori
  • 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: 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: 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: 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: 8203025
    Abstract: The invention provides a solid phosphoric acid catalyst which has high activity and attains high dimer selectivity in olefin dimerization reactions and efficient methods of olefin dimerization. The solid phosphoric acid catalyst comprises a carrier and phosphoric acid supported thereon. When the solid phosphoric acid catalyst is heated at 250° C. for 20 minutes, heating loss of water is 50 mass % or more based on diphosphorus pentoxide (P2O5) derived from the phosphoric acid. A method of olefin dimerization comprises bringing an olefin-containing feed material containing water in an amount of 10-1000 mass ppm into contact with the catalyst to initiate the reaction.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: June 19, 2012
    Assignee: Nippon Oil Corporation
    Inventors: Tatsuo Hamamatsu, Nobuhiro Kimura, Tsutomu Takashima, Takashi Morikita
  • Publication number: 20110272268
    Abstract: A first method for refining dicyclopentadiene of the present invention is characterized in that the method separates and recovers dicyclopentadiene by distilling the crude dicyclopentadiene that contains dicyclopentadiene and is obtained by removing a C5 fraction and a BTX fraction from the reaction product obtained by dimerization reaction of the cracked gasoline by-produced in an ethylene plant that uses as feed stock a C2 fraction, a C3 fraction and a C4 fraction. A second method for refining dicyclopentadiene of the present invention is characterized in that the dicyclopentadiene-containing fraction refined by distillation is brought into contact with an inert gas or a hydrocarbon gas having 1 to 3 carbon atoms.
    Type: Application
    Filed: November 11, 2009
    Publication date: November 10, 2011
    Applicants: JX NIPPON CHEMICAL TEXAS INC., JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Takaaki Takeshita, Takeshi Omata, Takashi Suzuki, Takashi Morikita, Satoshi Mori
  • Patent number: 7741527
    Abstract: The present invention provides a solid phosphoric acid catalyst which attains high activity and dimer selectivity in olefin dimerization reaction and an efficient method for dimerization of olefin using the same. The solid phosphoric acid catalyst comprises phosphoric acid supported on a siliceous carrier, the proportion of orthophosphoric acid in the phosphoric acid supported being 60 mol % or more in terms of phosphorus atom amount. The solid phosphoric acid catalyst is prepared by bringing a phosphoric acid aqueous solution into contact with the siliceous carrier followed by drying, the preparation step being carried out at a temperature lower than 100° C. Also provided is a method for bringing an olefin-containing raw material into contact with the catalyst.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: June 22, 2010
    Assignee: Nippon Oil Corporation
    Inventors: Tatsuo Hamamatsu, Nobuhiro Kimura, Tsutomu Takashima, Takashi Morikita
  • Publication number: 20090099400
    Abstract: A solid phosphoric acid catalyst which has high activity and attains high dimer selectivity in olefin dimerization reactions; and efficient methods of olefin dimerization reaction. The solid phosphoric acid catalyst comprises a carrier and phosphoric acid supported thereon. When the solid phosphoric acid catalyst is heated at 250° C. for 20 minutes, heating loss of water is 50 mass % or more based on diphosphorus pentaoxide (P2O5) derived from the phosphoric acid. One of the methods of olefin dimerization reaction comprises bringing an olefin-containing feed material containing water in an amount of 10-1000 mass ppm into contact with the catalyst to initiate the reaction.
    Type: Application
    Filed: May 25, 2006
    Publication date: April 16, 2009
    Applicant: Nippon Oil Corporation
    Inventors: Tatsuo Hamamatsu, Nobuhiro Kimura, Tsutomu Takashima, Takashi Morikita
  • Publication number: 20080027261
    Abstract: The present invention provides a solid phosphoric acid catalyst which attains high activity and dimer selectivity in olefin dimerization reaction and an efficient method for dimerization of olefin using the same. The solid phosphoric acid catalyst comprises phosphoric acid supported on a siliceous carrier, the proportion of orthophosphoric acid in the phosphoric acid supported being 60 mol % or more in terms of phosphorus atom amount. The solid phosphoric acid catalyst is prepared by bringing a phosphoric acid aqueous solution into contact with the siliceous carrier followed by drying, the preparation step being carried out at a temperature lower than 100° C. Also provided is a method for bringing an olefin-containing raw material into contact with the catalyst.
    Type: Application
    Filed: July 13, 2005
    Publication date: January 31, 2008
    Inventors: Tatsuo Hamamatsu, Nobuhiro Kimura, Tsutomu Takashima, Takashi Morikita