Patents by Inventor Eizo Maruyama
Eizo Maruyama 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: 9808023Abstract: Provided is a process for producing a tea extract having a high recovery rate of non-polymer catechins, a low caffeine content and an improved taste and color tone. As one embodiment of this invention provides, there is provided a process for producing a purified tea extract by adsorbing a tea extract on a synthetic adsorbent, bringing an aqueous solution of an organic solvent or a basic aqueous solution into contact with the synthetic adsorbent to elute non-polymer catechins, and then bringing the eluate into contact with activated carbon in an aqueous solution of an organic solvent.Type: GrantFiled: March 1, 2007Date of Patent: November 7, 2017Assignee: Kao CorporationInventors: Eizo Maruyama, Yukiteru Sugiyama, Kenichi Shikata, Keiji Shibata, Hideaki Ueoka
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Patent number: 8697171Abstract: Provided are a preparation process of a purified green-tea extract capable of easily and efficiently removing a turbidity component contained in a green tea extract; a purified green-tea extract prepared by the preparation process; and a packaged beverage containing the purified green-tea extract. The preparation process of a purified green-tea extract containing, in the solid content thereof, from 36 to 99 mass % of non-polymer catechins comprises bringing a green tea extract into contact with a mixed solution containing an organic solvent and water at a mass ratio of from 65/35 to 97/3 and active carbon and/or acid clay or active clay, adjusting the organic solvent/water mass ratio of the resulting solution to from 0/100 to 85/15, and then separating the turbidity component thus separated.Type: GrantFiled: August 29, 2006Date of Patent: April 15, 2014Assignee: Kao CorporationInventors: Masaki Iwasaki, Norihiko Satake, Shinji Yamamoto, Naoki Hosoya, Eiichi Hoshino, Tetsuya Abe, Hideaki Ueoka, Eizo Maruyama
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Publication number: 20130273220Abstract: Provided is a production method for a purified tea extract, which enables efficiently removing gallic acid and collecting the non-polymer catechins in a high yield without impairing original taste and flavor of tea. The production method for a purified tea extract according to the present invention comprises bringing a tea extract into contact with an OH-type anion exchange resin and an H-type cation exchange resin.Type: ApplicationFiled: December 28, 2011Publication date: October 17, 2013Applicant: KAO CorporationInventors: Takuma Ito, Kenichi Shikata, Hitoshi Sato, Eizo Maruyama
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Patent number: 8524309Abstract: Provided is an oil or fat composition of high diacylglycerol content. Even when used in cooking, the cooked food has a good external appearance without darkening, and retains its inherent flavor. Even when used in cooking after storage under light-exposed conditions, the cooked food is provided with a good external appearance and flavor. The oil or fat composition is obtained by combining, at specific contents, (A) an oil or fat of high diacylglycerol content, said oil or fat having a particular composition, (B) a plant sterol and (C) a plant sterol fatty acid ester.Type: GrantFiled: December 21, 2012Date of Patent: September 3, 2013Assignee: Kao CorporationInventors: Jun Kohori, Masao Shimizu, Shin Koike, Keiji Shibata, Hiroaki Yamaguchi, Minoru Kase, Yoshitaka Senda, Manabu Sato, Eizo Maruyama, Hidenari Imai, Tsutomu Nishide, Nobuteru Ishizuka
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Patent number: 8445031Abstract: A purified tea extract is improved in taste by reducing a percentage of gallates in the non-polymer catechins. A process according to the present invention for the production of a purified tea extract includes subjecting a tea extract to a hydrolysis treatment, causing the tea extract to adsorb on the activated carbon, and then bringing a basic aqueous solution or an aqueous solution of an organic solvent into contact with the activated carbon to elute the non-polymer catechins.Type: GrantFiled: September 4, 2008Date of Patent: May 21, 2013Assignee: Kao CorporationInventors: Eizo Maruyama, Hideaki Ueoka, Keiji Shibata
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Publication number: 20100184167Abstract: A purified tea extract is improved in taste by reducing a percentage of gallates in the non-polymer catechins. A process according to the present invention for the production of a purified tea extract includes subjecting a tea extract to a hydrolysis treatment, causing the tea extract to adsorb on the activated carbon, and then bringing a basic aqueous solution or an aqueous solution of an organic solvent into contact with the activated carbon to elute the non-polymer catechins.Type: ApplicationFiled: September 4, 2008Publication date: July 22, 2010Applicant: Kao CorporationInventors: Eizo Maruyama, Hideaki Ueoka, Keiji Shibata
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Patent number: 7550615Abstract: Provided is a preparation process of a diglyceride-rich fat or oil, which includes bringing a fat or oil containing diglycerides in an amount of 50 mass % or greater and having a transition metal content of 5 ppm or less into contact with steam while forming a thin film of the fat or oil. This process makes it possible to prepare a diglyceride-rich fat or oil having a reduced odor and good color efficiently.Type: GrantFiled: November 8, 2007Date of Patent: June 23, 2009Assignee: Kao CorporationInventors: Eizo Maruyama, Keiji Shibata, Hiroaki Yamaguchi
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Publication number: 20090041921Abstract: Provided is a process for producing a tea extract having a high recovery rate of non-polymer catechins, a low caffeine content and an improved taste and color tone. As one embodiment of this invention provides, there is provided a process for producing a purified tea extract by adsorbing a tea extract on a synthetic adsorbent, bringing an aqueous solution of an organic solvent or a basic aqueous solution into contact with the synthetic adsorbent to elute non-polymer catechins, and then bringing the eluate into contact with activated carbon in an aqueous solution of an organic solvent.Type: ApplicationFiled: March 1, 2007Publication date: February 12, 2009Applicant: KAO CORPORATIONInventors: Eizo Maruyama, Yukiteru Sugiyama, Kenichi Shikata, Keiji Shibata, Hideaki Ueoka
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Patent number: 7375240Abstract: Provided is a preparation process of a diglyceride-rich fat or oil, which includes bringing a fat or oil containing diglycerides in an amount of 50 mass % or greater and having a transition metal content of 5 ppm or less into contact with steam while forming a thin film of the fat or oil. This process makes it possible to prepare a diglyceride-rich fat or oil having a reduced odor and good color efficiently.Type: GrantFiled: December 22, 2005Date of Patent: May 20, 2008Assignee: Kao CorporationInventors: Eizo Maruyama, Keiji Shibata, Hiroaki Yamaguchi
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Publication number: 20080071101Abstract: Provided is a preparation process of a diglyceride-rich fat or oil, which includes bringing a fat or oil containing diglycerides in an amount of 50 mass % or greater and having a transition metal content of 5 ppm or less into contact with steam while forming a thin film of the fat or oil. This process makes it possible to prepare a diglyceride-rich fat or oil having a reduced odor and good color efficiently.Type: ApplicationFiled: November 8, 2007Publication date: March 20, 2008Applicant: KAO CORPORATIONInventors: Eizo Maruyama, Keiji Shibata, Hiroaki Yamaguchi
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Publication number: 20080069932Abstract: Provided is an oil or fat composition of high diacylglycerol content. Even when used in cooking, the cooked food has a good external appearance without darkening, and retains its inherent flavor. Even when used in cooking after storage under light-exposed conditions, the cooked food is provided with a good external appearance and flavor. The oil or fat composition is obtained by combining, at specific contents, (A) an oil or fat of high diacylglycerol content, said oil or fat having a particular composition, (B) a plant sterol and (C) a plant sterol fatty acid ester.Type: ApplicationFiled: March 30, 2005Publication date: March 20, 2008Applicant: KAO CORPORATIONInventors: Jun Kohori, Masao Shimizu, Shin Koike, Keiji Shibata, Hiroaki Yamaguchi, Minoru Kase, Yoshitaka Senda, Manabu Sato, Eizo Maruyama, Hidenari Imai, Tsutomu Nishide, Nobuteru Ishizuka
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Publication number: 20070059424Abstract: Provided are a preparation process of a purified green-tea extract capable of easily and efficiently removing a turbidity component contained in a green tea extract; a purified green-tea extract prepared by the preparation process; and a packaged beverage containing the purified green-tea extract. The preparation process of a purified green-tea extract containing, in the solid content thereof, from 36 to 99 mass % of non-polymer catechins comprises bringing a green tea extract into contact with a mixed solution containing an organic solvent and water at a mass ratio of from 65/35 to 97/3 and active carbon and/or acid clay or active clay, adjusting the organic solvent/water mass ratio of the resulting solution to from 0/100 to 85/15, and then separating the turbidity component thus separated.Type: ApplicationFiled: August 29, 2006Publication date: March 15, 2007Applicant: KAO CORPORATIONInventors: Masaki Iwasaki, Norihiko Satake, Shinji Yamamoto, Naoki Hosoya, Eiichi Hoshino, Tetsuya Abe, Hideaki Ueoka, Eizo Maruyama
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Publication number: 20060161012Abstract: Provided is a preparation process of a diglyceride-rich fat or oil, which includes bringing a fat or oil containing diglycerides in an amount of 50 mass % or greater and having a transition metal content of 5 ppm or less into contact with steam while forming a thin film of the fat or oil. This process makes it possible to prepare a diglyceride-rich fat or oil having a reduced odor and good color efficiently.Type: ApplicationFiled: December 22, 2005Publication date: July 20, 2006Applicant: KAO CORPORATIONInventors: Eizo Maruyama, Keiji Shibata, Hiroaki Yamaguchi
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Patent number: 6841692Abstract: The present invention provides a method for separating a saturated fatty acid and an unsaturated fatty acid from a mixture of fatty acids by a dry fractionation process with a superior efficiency. Namely, the present invention provides a method for producing a saturated fatty acid or an unsaturated fatty acid comprising a dry fractionation process to fractionate a saturated fatty acid and an unsaturated fatty acid in a raw fatty acids mixture by adding a polyglycerol ester of fatty acid to the raw fatty acids mixture, wherein the polyglycerol ester of fatty acid has a clear melting point (y) satisfying the following formula (1): 0.38x+13?y?0.54x+44??(1) wherein x is a ratio (% by mass) of saturated fatty acids (C12 to C22) in raw fatty acids, and y is a clear melting point (° C.) of a polyglycerol ester of fatty acid.Type: GrantFiled: June 5, 2003Date of Patent: January 11, 2005Assignee: Kao CorporationInventors: Minoru Kase, Eizo Maruyama, Hiroaki Yamaguchi
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Patent number: 6825368Abstract: The present invention provides a method for producing a saturated fatty acid and an unsaturated fatty acid, which comprises adding and mixing a polyglycerol ester of a fatty acid to a raw fatty acids mixture, cooling the resultant mixture to deposit crystals, and fractionating the saturated fatty acid and the unsaturated fatty acid, wherein a cooling procedure is performed at a cooling rate of 4° C./h or less when a supersaturation ratio is 60% or more and said cooling rate is varied during the cooling, and a glycerides mixture obtained from the fractionated unsaturated fatty acids. According to the present invention, a saturated fatty acid and an unsaturated fatty acid in a raw fatty acids mixture can be separated easily and efficiently by a dry fractionation process.Type: GrantFiled: July 9, 2003Date of Patent: November 30, 2004Assignee: Kao CorporationInventors: Minoru Kase, Keiji Shibata, Eizo Maruyama
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Publication number: 20040132147Abstract: The present invention provides a method for producing a saturated fatty acid and an unsaturated fatty acid, which comprises adding and mixing a polyglycerol ester of a fatty acid to a raw fatty acids mixture, cooling the resultant mixture to deposit crystals, and fractionating the saturated fatty acid and the unsaturated fatty acid, wherein a cooling procedure is performed at a cooling rate of 4° C./h or less when a supersaturation ratio is 60% or more and said cooling rate is varied during the cooling, and a glycerides mixture obtained from the fractionated unsaturated fatty acids.Type: ApplicationFiled: July 9, 2003Publication date: July 8, 2004Applicant: KAO CORPORATIONInventors: Minoru Kase, Keiji Shibata, Eizo Maruyama
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Patent number: 6337414Abstract: The invention relates to a process for preparing a partial glyceride, which includes, in a glycerolysis reaction of oil or fat making use of a lipase, conducting the reaction in the presence of water under conditions that crystals are partially precipitated in the reaction system in the course of the reaction and the concentration of free fatty acids in an oil phase amounts to at least 5% by weight.Type: GrantFiled: January 8, 2001Date of Patent: January 8, 2002Assignee: Kao CorporationInventors: Masakatsu Sugiura, Masami Shimizu, Yasushi Yamada, Kouji Mine, Eizo Maruyama, Naoto Yamada