Patents by Inventor Nobuhiro Tatsumi
Nobuhiro Tatsumi 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: 8501974Abstract: Disclosed is a process for producing alkyl fatty esters from fats/oils and C1 to C5 lower alcohols by a multistage reaction process, which includes feeding fats and oils to a reactor at an upper stage and then sent to a stage at the downstream side while feeding lower alcohols to a reactor at a lower stage, and simultaneously returning lower alcohols recovered from an outlet of the reactor to a stage at the upstream side, thereby repeating the reaction.Type: GrantFiled: December 26, 2006Date of Patent: August 6, 2013Assignee: Kao CorporationInventors: Wataru Nomura, Nobuhiro Tatsumi, Takanobu Katayama
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Patent number: 8242295Abstract: Disclosed is a process for producing a fatty alkyl ester and glycerin, including step 1 of reacting fats and oils with C1 to C5 lower alcohols, step 2 of removing the lower alcohols discharged from the outlet of a rector in step 1 until the lower alcohol content is reduced to 8 wt % or less, step 3 of separating the product obtained in step 2 into oil and aqueous phases, step 4 of reacting the oil phase obtained in step 3 with lower alcohols in the presence of an acid catalyst, and step 5 of separating the product discharged from the outlet of a reactor in step 4 into oil and aqueous phases thereby giving fatty acid alkyl esters and glycerin, as well as a process for producing fatty alcohols from hydrogen and the fatty acid alkyl esters obtained in the above process.Type: GrantFiled: December 19, 2006Date of Patent: August 14, 2012Assignee: Kao CorporationInventors: Yuichiro Seki, Nobuhiro Tatsumi, Takanobu Katayama
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Patent number: 7667059Abstract: The invention relates to a process for producing a fatty alcohol and glycerin by hydrogenation reaction of fats and oils in the presence of a catalyst, wherein the reaction is carried out in the coexistence of an organic solvent.Type: GrantFiled: March 6, 2006Date of Patent: February 23, 2010Assignee: Kao CorporationInventors: Toru Sakamoto, Nobuhiro Tatsumi, Hideaki Ueoka
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Patent number: 7642386Abstract: The invention relates to a process for producing an alcohol from fats and oils, including: step 1 of reacting starting fats and oils with water to produce a reaction product containing a glycerin unit, and step 2 of subjecting the reaction product obtained in step 1 to a hydrogenation reaction in the presence of a catalyst in the coexistence of water in an amount of 0.5 mole or more relative to 1 mole of the glycerin unit contained in the reaction product.Type: GrantFiled: March 7, 2006Date of Patent: January 5, 2010Assignee: Kao CorporationInventors: Toru Sakamoto, Masanori Namba, Nobuhiro Tatsumi
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Publication number: 20090156846Abstract: Disclosed is a process for producing a fatty alkyl ester and glycerin, including step 1 of reacting fats and oils with C1 to C5 lower alcohols, step 2 of removing the lower alcohols discharged from the outlet of a rector in step 1 until the lower alcohol content is reduced to 8 wt % or less, step 3 of separating the product obtained in step 2 into oil and aqueous phases, step 4 of reacting the oil phase obtained in step 3 with lower alcohols in the presence of an acid catalyst, and step 5 of separating the product discharged from the outlet of a reactor in step 4 into oil and aqueous phases thereby giving fatty acid alkyl esters and glycerin, as well as a process for producing fatty alcohols from hydrogen and the fatty acid alkyl esters obtained in the above process.Type: ApplicationFiled: December 19, 2006Publication date: June 18, 2009Applicant: KAO CORPORATIONInventors: Yuichiro Seki, Nobuhiro Tatsumi, Takanobu Katayama
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Publication number: 20090105492Abstract: Disclosed is a process for producing alkyl fatty esters from fats/oils and C1 to C5 lower alcohols by a multistage reaction process, which includes feeding fats and oils to a reactor at an upper stage and then sent to a stage at the downstream side while feeding lower alcohols to a reactor at a lower stage, and simultaneously returning lower alcohols recovered from an outlet of the reactor to a stage at the upstream side, thereby repeating the reaction.Type: ApplicationFiled: December 26, 2006Publication date: April 23, 2009Applicant: Kao CorporationInventors: Wataru Nomura, Nobuhiro Tatsumi, Takanobu Katayama
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Publication number: 20090023962Abstract: The invention relates to a process for producing an alcohol from fats and oils, including: step 1 of reacting starting fats and oils with water to produce a reaction product containing a glycerin unit, and step 2 of subjecting the reaction product obtained in step 1 to a hydrogenation reaction in the presence of a catalyst in the coexistence of water in an amount of 0.5 mole or more relative to 1 mole of the glycerin unit contained in the reaction product.Type: ApplicationFiled: March 7, 2006Publication date: January 22, 2009Applicant: KAO CORPORATIONInventors: Toru Sakamoto, Masanori Namba, Nobuhiro Tatsumi
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Patent number: 7271275Abstract: The present invention relates to a process for producing a fatty acid ester by using a fatty acid and an alcohol as starting materials, including reducing the acid value of a raw material supplied to a catalyst layer to an acid value lower than the acid value of a raw material fatty acid and then esterifying the raw material in the presence of a solid catalyst.Type: GrantFiled: October 13, 2004Date of Patent: September 18, 2007Assignee: Kao CorporationInventors: Takanobu Katayama, Nobuhiro Tatsumi, Osamu Tabata
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Patent number: 7193097Abstract: The present invention relates to a method of producing a fatty acid ester, including reacting fat and oil with an alcohol in the presence of at least one third component, wherein the third component is in a supercritical state or subcritical state under the condition of preventing a uniform phase from forming.Type: GrantFiled: July 27, 2004Date of Patent: March 20, 2007Assignee: Kao CorporationInventors: Nobuhiro Tatsumi, Takanobu Katayama, Osamu Tabata
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Publication number: 20060205965Abstract: The invention relates to a process for producing a fatty alcohol and glycerin by hydrogenation reaction of fats and oils in the presence of a catalyst, wherein the reaction is carried out in the coexistence of an organic solvent.Type: ApplicationFiled: March 6, 2006Publication date: September 14, 2006Applicant: KAO CORPORATIONInventors: Toru Sakamoto, Nobuhiro Tatsumi, Hideaki Ueoka
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Publication number: 20050113589Abstract: The present invention relates to a process for producing a fatty acid ester by using a fatty acid and an alcohol as starting materials, including reducing the acid value of a raw material supplied to a catalyst layer to an acid value lower than the acid value of a raw material fatty acid and then esterifying the raw material in the presence of a solid catalyst.Type: ApplicationFiled: October 13, 2004Publication date: May 26, 2005Applicant: Kao CorporationInventors: Takanobu Katayama, Nobuhiro Tatsumi, Osamu Tabata
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Publication number: 20050033071Abstract: The present invention relates to a method of producing a fatty acid ester, including reacting fat and oil with an alcohol in the presence of at least one third component, wherein the third component is in a supercritical state or subcritical state under the condition of preventing a uniform phase from forming.Type: ApplicationFiled: July 27, 2004Publication date: February 10, 2005Applicant: KAO CORPORATIONInventors: Nobuhiro Tatsumi, Takanobu Katayama, Osamu Tabata
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Patent number: 6509487Abstract: The present invention provides a process for producing lower alkyl fatty esters from fatty acids and lower alcohols, wherein lower alkyl fatty esters are produced in higher yield with a reduction in the amount of the remaining fatty acids. The process of the present invention comprises bringing fatty acids into contact with gaseous lower alcohols in fixed bed(s) charged with a weakly acidic solid catalyst by countercurrent operation, by co-current operation and subsequent countercurrent operation or by pseudo-countercurrent operation, thus feeding and reacting the fatty acids and lower alcohols in fixed-bed reactor(s) charged with a weakly acidic solid catalyst to produce lower alkyl fatty esters.Type: GrantFiled: November 21, 2001Date of Patent: January 21, 2003Assignee: Kao CorporationInventors: Nobuhiro Tatsumi, Takanobu Katayama, Osamu Tabata, Taku Mimura, Noriaki Fukuoka, Katsutoshi Yamamoto
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Publication number: 20020062035Abstract: The present invention provides a process for producing lower alkyl fatty esters from fatty acids and lower alcohols, wherein lower alkyl fatty esters are produced in higher yield with a reduction in the amount of the remaining fatty acids. The process of the present invention comprises bringing fatty acids into contact with gaseous lower alcohols in fixed bed(s) charged with a weakly acidic solid catalyst by countercurrent operation, by co-current operation and subsequent countercurrent operation or by pseudo-countercurrent operation, thus feeding and reacting the fatty acids and lower alcohols in fixed-bed reactor(s) charged with a weakly acidic solid catalyst to produce lower alkyl fatty esters.Type: ApplicationFiled: November 21, 2001Publication date: May 23, 2002Inventors: Nobuhiro Tatsumi, Takanobu Katayama, Osamu Tabata, Taku Mimura, Noriaki Fukuoka, Katsutoshi Yamamoto
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Patent number: 6372927Abstract: The process for preparing an alkylene oxide adduct, including the steps of feeding an organic compound having active hydrogen and an alkylene oxide to a reaction column packed with a solid catalyst, and carrying out addition reaction of the organic compound having active hydrogen with an alkylene oxide in a gas-liquid fixed bed reaction, wherein the alkylene oxide is in a state of gas and the organic compound having active hydrogen is in a state of liquid.Type: GrantFiled: August 10, 1998Date of Patent: April 16, 2002Assignee: Kao CorporationInventors: Nobuhiro Tatsumi, Yoshikazu Ogura, Takanobu Katayama, Osamu Tabata
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Publication number: 20020010350Abstract: The process for preparing an alkylene oxide adduct, including the steps of feeding an organic compound having active hydrogen and an alkylene oxide to a reaction column packed with a solid catalyst, and carrying out addition reaction of the organic compound having active hydrogen with an alkylene oxide in a gas-liquid fixed bed reaction, wherein the alkylene oxide is in a state of gas and the organic compound having active hydrogen is in a state of liquid.Type: ApplicationFiled: August 10, 1998Publication date: January 24, 2002Inventors: NOBUHIRO TATSUMI, YOSHIKAZU OGURA, TAKANOBU KATAYAMA, OSAMU TABATA