Patents by Inventor Wataru Oguchi
Wataru Oguchi 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: 11981622Abstract: A method and catalyst for producing an alcohol, which method includes supplying water and a C2-C5 olefin to a reactor and performing hydration in a gas phase using a solid acid catalyst. The solid acid catalyst is one in which a heteropolyacid or a salt thereof is supported on a silica carrier. The silica carrier is obtained by kneading a fumed silica obtained by a combustion method, a silica gel obtained by a gel method, and a colloidal silica obtained by a sol-gel method or a water glass method; molding the resulting kneaded product; and calcining the resulting molded body.Type: GrantFiled: October 28, 2019Date of Patent: May 14, 2024Assignee: Resonac CorporationInventors: Wataru Oguchi, Gen Inoue, Toshihiro Kimura, Masafumi Koyano, Takuya Kuzutani
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Patent number: 11890592Abstract: A method for producing the silica carrier which includes kneading fumed silica obtained by a combustion method, silica gel obtained by a gel method, and colloidal silica obtained by a sol-gel method or a water glass method, molding the resulting kneaded product, and calcining the resulting molded body. The silica carrier has, in the measurement of pore size distribution, mesopores with a pore size of 2 to 50 nm and macropores with a pore size of more than 50 nm and 1,000 nm or less.Type: GrantFiled: September 3, 2018Date of Patent: February 6, 2024Assignee: Resonac CorporationInventors: Wataru Oguchi, Katsuhiko Yamashita, Toshihiro Kimura, Daiki Shimono
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Publication number: 20210380509Abstract: A method and catalyst for producing an alcohol, which method includes supplying water and a C2-C5 olefin to a reactor and performing hydration in a gas phase using a solid acid catalyst. The solid acid catalyst is one in which a heteropolyacid or a salt thereof is supported on a silica carrier. The silica carrier is obtained by kneading a fumed silica obtained by a combustion method, a silica gel obtained by a gel method, and a colloidal silica obtained by a sol-gel method or a water glass method; molding the resulting kneaded product; and calcining the resulting molded body.Type: ApplicationFiled: October 28, 2019Publication date: December 9, 2021Applicant: SHOWA DENKO K.K.Inventors: Wataru OGUCHI, Gen INOUE, Toshihiro KIMURA, Masafumi KOYANO, Takuya KUZUTANI
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Publication number: 20200238255Abstract: A method for producing the silica carrier which includes kneading fumed silica obtained by a combustion method, silica gel obtained by a gel method, and colloidal silica obtained by a sol-gel method or a water glass method, molding the resulting kneaded product, and calcining the resulting molded body. The silica carrier has, in the measurement of pore size distribution, mesopores with a pore size of 2 to 50 nm and macropores with a pore size of more than 50 nm and 1,000 nm or less.Type: ApplicationFiled: September 3, 2018Publication date: July 30, 2020Applicant: SHOWA DENKO K.K.Inventors: Wataru OGUCHI, Katsuhiko YAMASHITA, Toshihiro KIMURA, Daiki SHIMONO
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Patent number: 9040743Abstract: Provided is a method for producing n-propyl acetate, which is capable of obtaining high-purity allyl acetate with a low amount of coexisting water and is capable of producing n-propyl acetate with a high yield. The method includes an extraction process of subjecting a raw material liquid containing allyl acetate and water to an extraction operation using water as an extraction solvent and separating the extract into an oily phase and an aqueous phase, a distillation process of distilling the oily phase to obtain a distillate containing allyl acetate as a main component, and a hydrogenation process of subjecting the distillate to a hydrogenation reaction.Type: GrantFiled: March 14, 2011Date of Patent: May 26, 2015Assignee: SHOWA DENKO K.K.Inventors: Wataru Oguchi, Hiroshi Maruta
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Patent number: 8802889Abstract: A process for production of allyl acetate includes steps of reacting acetic acid 3, oxygen 1 and propylene 2 in the presence of a catalyst in an oxidation reactor 5 to form allyl acetate and water; separating the unreacted acetic acid by a distillation column 9; and recovering an acetic acid-containing liquid which contains acetic acid and returning the acetic acid-containing liquid to the oxidation reactor 5 via an acetic acid-water evaporator 4, the process further including a heating step of heating a process liquid which contains the acetic acid-containing liquid to a temperature of 80 to 250° C. by a heater.Type: GrantFiled: September 20, 2011Date of Patent: August 12, 2014Assignee: Showa Denko K.K.Inventor: Wataru Oguchi
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Publication number: 20130172602Abstract: A process for production of allyl acetate includes steps of reacting acetic acid 3, oxygen 1 and propylene 2 in the presence of a catalyst in an oxidation reactor 5 to form allyl acetate and water; separating the unreacted acetic acid by a distillation column 9; and recovering an acetic acid-containing liquid which contains acetic acid and returning the acetic acid-containing liquid to the oxidation reactor 5 via an acetic acid-water evaporator 4, the process further including a heating step of heating a process liquid which contains the acetic acid-containing liquid to a temperature of 80 to 250° C. by a heater.Type: ApplicationFiled: September 20, 2011Publication date: July 4, 2013Applicant: SHOWA DENKO K.K.Inventor: Wataru Oguchi
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Publication number: 20130018203Abstract: Provided is a method for producing n-propyl acetate, which is capable of obtaining high-purity allyl acetate with a low amount of coexisting water and is capable of producing n-propyl acetate with a high yield. The method includes an extraction process of subjecting a raw material liquid containing allyl acetate and water to an extraction operation using water as an extraction solvent and separating the extract into an oily phase and an aqueous phase, a distillation process of distilling the oily phase to obtain a distillate containing allyl acetate as a main component, and a hydrogenation process of subjecting the distillate to a hydrogenation reaction.Type: ApplicationFiled: March 14, 2011Publication date: January 17, 2013Applicant: SHOWA DENKO K.K.Inventors: Wataru Oguchi, Hiroshi Maruta
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Patent number: 8338327Abstract: An allyl acetate production catalyst comprising at least (a) palladium, (b) gold, (c) a compound containing at least one element selected from copper, nickel, zinc and cobalt, (d) an alkali metal salt compound and (e) a carrier, is produced by a process comprising step 1 in which a homogeneous solution of a palladium-containing compound and a gold-containing compound is supported on a carrier by contact therewith, step 2 in which the carrier obtained in step 1 is contacted with an alkali solution for impregnation, step 3 in which the carrier obtained in step 2 is subjected to reduction treatment, and step 4 in which a compound containing at least one element selected from copper, nickel, zinc and cobalt and an alkali metal salt compound are supported onto the carrier obtained in step 3. The obtained allyl acetate production catalyst has minimal reduction in activity and improved selectivity, when used for production of allyl acetate from propylene, oxygen and acetic acid.Type: GrantFiled: April 9, 2008Date of Patent: December 25, 2012Assignee: Showa Denko K.K.Inventors: Etsuko Kadowaki, Wataru Oguchi, Tetsuo Nakajo, Yasuhiro Iwama
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Publication number: 20100099903Abstract: An allyl acetate production catalyst comprising at least (a) palladium, (b) gold, (c) a compound containing at least one element selected from copper, nickel, zinc and cobalt, (d) an alkali metal salt compound and (e) a carrier, is produced by a process comprising step 1 in which a homogeneous solution of a palladium-containing compound and a gold-containing compound is supported on a carrier by contact therewith, step 2 in which the carrier obtained in step 1 is contacted with an alkali solution for impregnation, step 3 in which the carrier obtained in step 2 is subjected to reduction treatment, and step 4 in which a compound containing at least one element selected from copper, nickel, zinc and cobalt and an alkali metal salt compound are supported onto the carrier obtained in step 3. The obtained allyl acetate production catalyst has minimal reduction in activity and improved selectivity, when used for production of allyl acetate from propylene, oxygen and acetic acid.Type: ApplicationFiled: April 9, 2008Publication date: April 22, 2010Applicant: SHOWDA DENKO K.K.Inventors: Etsuko Kadowaki, Wataru Oguchi, Tetsuo Nakajo, Yasuhiro Iwana
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Patent number: 7038069Abstract: A method of oxidizing a carbon-carbon double bond wherein the compound having the carbon-carbon double bond is suppressed, the unreacted compound is separated from the reaction product, and thereafter the thus obtained unreacted compound is again used for the oxidizing reaction; and a process for producing an oxidized compound utilizing such an oxidizing method. When this method is used, an intended oxidized compound can be obtained with high selectivity and high productivity.Type: GrantFiled: December 24, 2002Date of Patent: May 2, 2006Assignee: Showa Denko K.K.Inventors: Wataru Oguchi, Makoto Nishi, Yukiharu Hetsugi
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Publication number: 20060052646Abstract: A process for producing allylic ether compounds in presence of a catalyst comprising at least one Cu(II) salt by reaction of an allylic alcohol with either itself or another alcohol.Type: ApplicationFiled: May 28, 2003Publication date: March 9, 2006Inventors: Wataru Oguchi, Hiroshi Uchida
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Patent number: 6948961Abstract: A card connector includes a rotatable ejecting lever having a first end and a second end and supported by a fixed journal, the second end moving in the direction of ejecting a card to eject the card when the first end is pushed in the direction of inserting the card; and distance varying means increasing the distance from the journal to the contact point between the ejecting lever and the card during ejection of the card.Type: GrantFiled: March 29, 2004Date of Patent: September 27, 2005Assignee: ALPS Electric Co., Ltd.Inventor: Wataru Oguchi
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Patent number: 6849759Abstract: A process for producing an ester comprising reacting a carboxylic acid and ethylene in the presence of an acid catalyst in a vapor phase, wherein the concentration of olefin having 3 or more carbon atoms in the starting materials is controlled to 10,000 ppm or less in terms of the molar ratio to the total of the olefin and ethylene. The deterioration of the catalyst can be remarkably prevented from proceeding and a continuous and stable operation can be performed for a long time.Type: GrantFiled: October 24, 2000Date of Patent: February 1, 2005Assignee: Showa Denko K.K.Inventors: Hiroshi Uchida, Tomoyoshi Higashi, Etsuko Kadowaki, Takashige Miyanari, Wataru Oguchi
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Publication number: 20040242918Abstract: A catalyst for use in producing a lower aliphatic carboxylic acid ester, wherein the catalyst is produced by a process comprising a step of contacting the catalyst with a gas containing at least one member selected from water, lower aliphatic carboxylic acids and lower aliphatic alcohols; a process for producing the catalyst; and a process for producing a lower aliphatic carboxylic acid ester using the catalyst. The catalyst can exhibit high initial activity and high space time yield, ensure sufficiently long catalyst life in practice in industry, and can prevent the production of by-product materials. A siliceous support for use in a catalyst, which has a silicon content of from 39.7 to 46.3% by mass or a silicon content of from 85 to 99% by mass in terms of silicon dioxide or a crush strength of 30 N or more.Type: ApplicationFiled: February 25, 2004Publication date: December 2, 2004Applicant: SHOWA DENKO K.KInventors: Etsuko Kadowaki, Tomoyoshi Higashi, Wataru Oguchi, Hiroshi Uchida, Kousuke Narumi
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Publication number: 20040224545Abstract: A card connector includes a rotatable ejecting lever having a first end and a second end and supported by a fixed journal, the second end moving in the direction of ejecting a card to eject the card when the first end is pushed in the direction of inserting the card; and distance varying means increasing the distance from the journal to the contact point between the ejecting lever and the card during ejection of the card.Type: ApplicationFiled: March 29, 2004Publication date: November 11, 2004Applicant: ALPS ELECTRIC CO., LTD.Inventor: Wataru Oguchi
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Patent number: 6816386Abstract: A compact card connector having reduced width and thickness is provided for receiving an information card whereby the information card has a narrow step-like recess along one of its side edges and a sliding identifier mechanism provided in a concave cut in the step. The card connector includes a frame that receives the information card, and an identifier detecting means for detecting a sliding position of the identifier. The identifier detecting means includes a suitably placed fixed contact member and a movable contact member which are mounted on the frame, with part of the movable contact member forming a projection for detecting the sliding position of the identifier, whereby the projection lies in an area within the housing space through which the step-like recess of the card is to pass. As the information card is inserted into the housing space, the projection touches an upper surface of the step-like recess and/or that of the identifier and works in the concave cut in the step.Type: GrantFiled: January 7, 2002Date of Patent: November 9, 2004Assignee: Alps Electric Co., Ltd.Inventors: Wataru Oguchi, Toru Wagatsuma, Yoshimasa Kuroda
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Patent number: 6759540Abstract: A crystalline titanosilicate catalyst which is usable as a catalyst in the oxidation reaction of a compound having a carbon-carbon double bond and at least one other functional group, a process for producing the catalyst, and a process for producing an oxidized compound by an oxidation reaction using the catalyst. It has been found that a crystalline titanosilicate having a structural code of MWW effectively functions as a catalyst in an oxidation reaction of a compound having a carbon-carbon double bond and at least one other functional group wherein the carbon-carbon double bond of the compound is oxidized by using a peroxide as an oxidizing agent, thereby to highly selectively provide an intended oxidized compound.Type: GrantFiled: November 13, 2001Date of Patent: July 6, 2004Assignee: Showa Denko K.K.Inventors: Wataru Oguchi, Katsuyuki Tsuji, Takashi Tatsumi, Peng Wu
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Publication number: 20040122243Abstract: A method of oxidizing a carbon-carbon double bond wherein the compound having the carbon-carbon double bond is suppressed, the unreacted compound is separated from the reaction product, and thereafter the thus obtained unreacted compound is again used for the oxidizing reaction; and a process for producing an oxidized compound utilizing such an oxidizing method. When this method is used, an intended oxidized compound can be obtained with high selectivity and high productivity.Type: ApplicationFiled: July 23, 2003Publication date: June 24, 2004Inventors: Wataru Oguchi, Makoto Nishi, Yukiharu Hetsugi
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Publication number: 20040092757Abstract: A crystalline titanosilicate catalyst which is usable as a catalyst in the oxidation reaction of a compound having a carbon-carbon double bond and at least one other functional group, a process for producing the catalyst, and a process for producing an oxidized compound by an oxidation reaction using the catalyst. It has been found that a crystalline titanosilicate having a structural code of MWW effectively functions as a catalyst in an oxidation reaction of a compound having a carbon-carbon double bond and at least one other functional group wherein the carbon-carbon double bond of the compound is oxidized by using a peroxide as an oxidizing agent, thereby to highly selectively provide an intended oxidized compound.Type: ApplicationFiled: October 27, 2003Publication date: May 13, 2004Applicant: SHOWA DENKO K.K.Inventors: Wataru Oguchi, Katsuyuki Tsuji, Takashi Tatsumi, Peng Wu