Patents by Inventor Kazuhiro Okuma
Kazuhiro Okuma 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: 11653685Abstract: A D-psicose-containing sweetener with the modification of the taste of D-psicose includes D-psicose, a sugar alcohol and/or a high intensity sweetener, preferably containing D-psicose as the main component, particularly a low-calorie sweetener and/or a sweetener giving refreshing feel in the oral cavity, as well as foods and drinks obtained by using the D-psicose-containing sweetener with the modification of the taste of D-psicose, and other products given with sweetness. The sugar alcohol is one or more sugar alcohols selected from the group consisting of sorbitol, mannitol, lactitol, maltitol, xylitol and erythritol, while the high intensity sweetener is one or more high intensity sweeteners as selected from aspartame, acesulfame K, sodium cyclamate, sodium saccharin, Sucralose (under trade name), stevia sweetener, dulcin, taumatin, neotame and monellin.Type: GrantFiled: October 16, 2020Date of Patent: May 23, 2023Assignees: MATSUTANI CHEMICAL INDUSTRY CO., LTD., NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITYInventors: Hideki Fujihara, Kazuhiro Okuma, Tetsuo Iida, Ken Izumori, Masaaki Tokuda, Kazuhiro Fukada
-
Patent number: 11324763Abstract: Problem: A malaria transmission blocker or a malaria parasite growth inhibitor is provided as a result of finding a druq which inhibits malaria parasite growth in the body of a vector mosquito. Solution: A malaria parasite growth inhibitor or transmission blocker containing a rare sugar such as D-allose or D-psicose as an active ingredient.Type: GrantFiled: March 20, 2015Date of Patent: May 10, 2022Assignees: National University Corporation Kagawa University, MATSUTANI CHEMICAL INDUSTRY CO., LTD.Inventors: Masaaki Tokuda, Meiji Arai, Kazuhiro Okuma
-
Publication number: 20210030037Abstract: A D-psicose-containing sweetener with the modification of the taste of D-psicose includes D-psicose, a sugar alcohol and/or a high intensity sweetener, preferably containing D-psicose as the main component, particularly a low-calorie sweetener and/or a sweetener giving refreshing feel in the oral cavity, as well as foods and drinks obtained by using the D-psicose-containing sweetener with the modification of the taste of D-psicose, and other products given with sweetness. The sugar alcohol is one or more sugar alcohols selected from the group consisting of sorbitol, mannitol, lactitol, maltitol, xylitol and erythritol, while the high intensity sweetener is one or more high intensity sweeteners as selected from aspartame, acesulfame K, sodium cyclamate, sodium saccharin, Sucralose (under trade name), stevia sweetener, dulcin, taumatin, neotame and monellin.Type: ApplicationFiled: October 16, 2020Publication date: February 4, 2021Applicants: MATSUTANI CHEMICAL INDUSTRY CO., LTD., NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITYInventors: Hideki Fujihara, Kazuhiro Okuma, Tetsuo Iida, Ken Izumori, Masaaki Tokuda, Kazuhiro Fukada
-
Patent number: 10869494Abstract: Providing a D-psicose-containing sweetener with the modification of the taste of D-psicose, comprising D-psicose, a sugar alcohol and/or a high intensity sweetener, preferably containing D-psicose as the main component, particularly a low-calorie sweetener and/or a sweetener giving refreshing feel in the oral cavity, as well as foods and drinks obtained by using the D-psicose-containing sweetener with the modification of the taste of D-psicose, and other products given with sweetness. The sugar alcohol is one or more sugar alcohols selected from the group consisting of sorbitol, mannitol, lactitol, maltitol, xylitol and erythritol, while the high intensity sweetener is one or more high intensity sweeteners as selected from aspartame, acesulfame K, sodium cyclamate, sodium saccharin, Sucralose (under trade name), stevia sweetener, dulcin, taumatin, neotame and monellin.Type: GrantFiled: March 26, 2007Date of Patent: December 22, 2020Assignee: MATSUTANI CHEMICAL INDUSTRY CO., LTD.Inventors: Hideki Fujihara, Kazuhiro Okuma, Tetsuo Iida, Ken Izumori, Masaaki Tokuda, Kazuhiro Fukada
-
Publication number: 20170100418Abstract: Problem: A malaria transmission blocker or a malaria parasite growth inhibitor is provided as a result of finding a druq which inhibits malaria parasite growth in the body of a vector mosquito. Solution: A malaria parasite growth inhibitor or transmission blocker containinq a rare sugar such as D-allose or D-psicose as an active ingredient.Type: ApplicationFiled: March 20, 2015Publication date: April 13, 2017Applicants: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY, MATSUTANI CHEMICAL INDUSTRY CO., LTD.Inventors: Masaaki Tokuda, Meiji Arai, Kazuhiro Okuma
-
Publication number: 20160120889Abstract: A lifespan extending agent that is safe for animals, and can easily be ingested in a form that resembles foods. A lifespan extending method is also disclosed. In the lifespan extending agent, a rare sugar usable as a sweetener is contained as an active ingredient.Type: ApplicationFiled: January 13, 2016Publication date: May 5, 2016Applicants: NAT'L UNIVERSITY CORPORATION KAGAWA UNIVERSITY, MATSUTANI CHEMICAL INDUSTRY CO., LTD., IZUMORING CO., LTD.Inventors: Masashi Sato, Kazuhiro Okuma, Ken Izumori
-
Patent number: 9109266Abstract: Problems Development of a process of producing inexpensive and safe hexose and compositions of the same. Means for Resolution A process of producing a sugar composition comprising a definite amount of an target hexose, comprising treating a starting liquid sugar material comprising a starting sugar material hexose or a mixture comprising hexose in a system in the presence of one or more types selected from the group consisting of basic ion exchange resins, alkalis and calcium salts to initiate an isomerization reaction as an equilibrium reaction to transform the starting sugar material hexose to the target hexose to prepare a sugar mixture comprising a definite amount of the target hexose and having a sugar constitution different from that of the starting sugar material, and hexose compositions containing D-allose and D-psicose and the use of the hexose compositions.Type: GrantFiled: March 26, 2010Date of Patent: August 18, 2015Assignees: MATSUTANI CHEMICAL INDUSTRY CO., LTD., IZUMORING CO., LTD., NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITYInventors: Satoshi Takamine, Tetsuo Iida, Kazuhiro Okuma, Tsuyoshi Shimonishi, Ken Izumori, Tatsuhiro Matsuo
-
Publication number: 20130274350Abstract: To develop a method for producing a novel sweetener containing glucose, fructose, and psicose, which is produced from glucose liquid sugar using an isomerase and an epimerase; use of the novel sweetener as a food or drink material; and a novel sweetener capable of preventing obesity caused by the intake thereof. An isomerase and an epimerase are allowed to act on glucose liquid sugar produced in a glucose liquid sugar production plant to thereby produce D-psicose, thereby providing a novel sweetener (product) that maintains the degree and quality of sweetness of a glucose-fructose mixed solution and never causes obesity, a method for producing the same, and use of the same.Type: ApplicationFiled: March 15, 2013Publication date: October 17, 2013Inventors: Kazuhiro Okuma, Koji Yamada, Koji Tsukuda, Tetsuo Iida, Hiroshi Oga, Ken Izumori, Yoshio Tsujisaka, Tsuyoshi Shimonishi, Takako Yamada, Iwao Okamoto
-
Patent number: 8530222Abstract: Problem: To provide a microorganism with an ability to produce deoxy polyol dehydrogenase. Means for Resolution: A microorganism belonging to genus Enterobacter with an ability to produce a dehydrogenase for deoxy polyol of the same structure at the positions C2 and C3 as that of ribitol or L-iditol. The bacterial cell IK7 of the genus Enterobacter (accession No. NITE P-271). A method for producing deoxy ketose comprising allowing a culture containing the deoxy polyol dehydrogenase obtained by the culturing of the microorganism of the invention or allowing the deoxy polyol dehydrogenase to react with a solution containing deoxy polyol of the same structure at the positions C2 and C3 as that of ribitol or L-iditol to oxidize deoxy polyol to produce the corresponding deoxy ketose and then collecting the deoxy ketose. The deoxy polyol is 1-deoxy-D-allitol, while the corresponding deoxy ketose is 1-deoxy-L-psicose.Type: GrantFiled: March 27, 2007Date of Patent: September 10, 2013Assignees: National University Corporation Kagawa University, Rare Sugar Production Technical Research Laboratories, LLC., Matsutani Chemical Industry Co., Ltd.Inventors: Ken Izumori, Kenji Morimoto, Goro Takata, Masaaki Tokuda, Yoshio Tsujisaka, Kei Takeshita, Keiji Tsusaki, Kazuhiro Okuma
-
Patent number: 8389248Abstract: Providing 1- or 6-deoxy products corresponding to all of aldohexoses, ketohexoses and sugar alcohols, as based on Deoxy-Izumoring, as well as a method for systematically producing those products. A method for producing deoxyketohexose and a derivative thereof using a deoxyketohexose isomerase derived from Pseudomonas cichorii ST-24 (FERM BP-2736), comprising epimerizing 1-deoxy D-ketohexose or 6-deoxy D-ketohexose or 1-deoxy L-ketohexose or 6-deoxy L-ketohexose at position 3 to produce the individually corresponding 1-deoxy D-ketohexose or 6-deoxy D-ketohexose or 1-deoxy L-ketohexose or 6-deoxy L-ketohexose as an intended product.Type: GrantFiled: November 20, 2007Date of Patent: March 5, 2013Assignees: National University Corporation Kagawa University, Rare Sugar Production Technical Research Laboratories, LLC., Hayashibara Co., Ltd., Matsutani Chemical Industry Co., Ltd.Inventors: Ken Izumori, Masaaki Tokuda, George Fleet, Yoshio Tsujisaka, Kei Takeshita, Keiji Tsusaki, Kazuhiro Okuma
-
Publication number: 20120329735Abstract: A lifespan extending agent that is safe for animals, and can easily be ingested in a form that resembles foods. A lifespan extending method is also disclosed. In the lifespan extending agent, a rare sugar usable as a sweetener is contained as an active ingredient.Type: ApplicationFiled: June 25, 2012Publication date: December 27, 2012Applicants: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY, IZUMORING CO., LTD., MATSUTANI CHEMICAL INDUSTRY CO., LTD.Inventors: Masashi Sato, Kazuhiro Okuma, Ken Izumori
-
Patent number: 8227232Abstract: Object: To provide a thermostable L-ribose isomerase. Means for Resolution: The thermostable L-ribose isomerase with MW. 32,000 (by SDS-PAGE), optimal temperature of 45° C., optimal pH of pH 9.0 (glycine-NaOH buffer), and stable physicochemical properties such as temperature stability up to 45° C. during thermal treatment at pH 9.0 for 10 minutes, and with an action to isomerize L-ribose to generate L-ribulose or of inversely to isomerize L-ribulose to generate L-ribose.Type: GrantFiled: March 26, 2007Date of Patent: July 24, 2012Assignees: National University Corporation Kagawa Univeristy, Rare Sugar Production Technical Research Laboratories, LLC., Matsutani Chemical Industry Co., Ltd.Inventors: Ken Izumori, Kenji Morimoto, Goro Takata, Masaaki Tokuda, Yoshio Tsujisaka, Kei Takeshita, Keiji Tsusaki, Kazuhiro Okuma
-
Publication number: 20120094940Abstract: Problems Development of a process of producing inexpensive and safe hexose and compositions of the same. Means for Resolution A process of producing a sugar composition comprising a definite amount of an target hexose, comprising treating a starting liquid sugar material comprising a starting sugar material hexose or a mixture comprising hexose in a system in the presence of one or more types selected from the group consisting of basic ion exchange resins, alkalis and calcium salts to initiate an isomerization reaction as an equilibrium reaction to transform the starting sugar material hexose to the target hexose to prepare a sugar mixture comprising a definite amount of the target hexose and having a sugar constitution different from that of the starting sugar material, and hexose compositions containing D-allose and D-psicose and the use of the hexose compositions.Type: ApplicationFiled: March 26, 2010Publication date: April 19, 2012Applicants: MATSUTANI CHEMICAL INDUSTRY CO., LTD., NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY, IZUMORING CO., LTD.Inventors: Satoshi Takamine, Tetsuo Iida, Kazuhiro Okuma, Tsuyoshi Shimonishi, Ken Izumori, Tatsuhiro Matsuo
-
Publication number: 20100204346Abstract: Problem: To develop a method for producing a novel sweetener containing glucose, fructose, and psicose, which is produced from glucose liquid sugar using an isomerase and an epimerase; use of the novel sweetener as a food or drink material; and a novel sweetener capable of preventing obesity caused by the intake thereof. Means of Resolution: An isomerase and an epimerase are allowed to act on glucose liquid sugar produced in a glucose liquid sugar production plant to thereby produce D-psicose, thereby providing a novel sweetener (product) that maintains the degree and quality of sweetness of a glucose-fructose mixed solution and never causes obesity, a method for producing the same, and use of the same.Type: ApplicationFiled: May 19, 2008Publication date: August 12, 2010Applicants: MATSUTANI CHEMICAL INDUSTRY CO., LTD., NAT'L UNIVERSITY CORPORATION KAGAWA UNIVERSITY, RARE SUGAR PRODUCTION TECHNICAL RESEARCH LABS., KABUSHIKI KAISHA HAYASHIBARA SEIBUTSU KAGAKU KENKYUJOInventors: Kazuhiro Okuma, Koji Yamada, Koji Tsukuda, Tetsuo Iida, Hiroshi Oga, Ken Izumori, Yoshio Tsujisaka, Tsuyoshi Shimonishi, Takako Yamada, Iwao Okamoto
-
Publication number: 20100167350Abstract: Problem: To provide a microorganism with an ability to produce deoxy polyol dehydrogenase. Means for Resolution: A microorganism belonging to genus Enterobacter with an ability to produce a dehydrogenase for deoxy polyol of the same structure at the positions C2 and C3 as that of ribitol or L-iditol. The bacterial cell IK7 of the genus Enterobacter (accession No. NITE P-271). A method for producing deoxy ketose comprising allowing a culture containing the deoxy polyol dehydrogenase obtained by the culturing of the microorganism of the invention or allowing the deoxy polyol dehydrogenase to react with a solution containing deoxy polyol of the same structure at the positions C2 and C3 as that of ribitol or L-iditol to oxidize deoxy polyol to produce the corresponding deoxy ketose and then collecting the deoxy ketose. The deoxy polyol is 1-deoxy-D-allitol, while the corresponding deoxy ketose is 1-deoxy-L-psicose.Type: ApplicationFiled: March 27, 2007Publication date: July 1, 2010Applicants: NAT'L UNIVERSITY CORPORATION KAGAWA UNIVERSITY, RARE SUGAR PRODUCTION TECHNICAL RESEARCH LABS., MATSUTANI CHEMICAL INDUSTRY CO., LTD.Inventors: Ken Izumori, Kenji Morimoto, Goro Takata, Masaaki Tokuda, Yoshio Tsujisaka, Kei Takeshita, Keiji Tsusaki, Kazuhiro Okuma
-
Publication number: 20100105885Abstract: Providing 1- or 6-deoxy products corresponding to all of aldohexoses, ketohexoses and sugar alcohols, as based on Deoxy-Izumoring, as well as a method for systematically producing those products. A method for producing deoxyketohexose and a derivative thereof using a deoxyketohexose isomerase derived from Pseudomonas cichorii ST-24 (FERM BP-2736), comprising epimerizing 1-deoxy D-ketohexose or 6-deoxy D-ketohexose or 1-deoxy L-ketohexose or 6-deoxy L-ketohexose at position 3 to produce the individually corresponding 1-deoxy D-ketohexose or 6-deoxy D-ketohexose or 1-deoxy L-ketohexose or 6-deoxy L-ketohexose as an intended product.Type: ApplicationFiled: November 20, 2007Publication date: April 29, 2010Applicants: NAT'L UNIVERSITY CORPORATION KAGAWA UNIVERSITY, RARE SUGAR PRODUCTION TECHNICAL RESEARCH LABS., MATSUTANI CHEMICAL INDUSTRY CO., LTD., KABUSHIKI KAISHA HAYASHIBARA SEIBUTSU KAGAKU KENKYUJOInventors: Ken Izumori, Masaaki Tokuda, George Fleet, Yoshio Tsujisaka, Kei Takeshita, Keiji Tsusaki, Kazuhiro Okuma
-
Publication number: 20090325231Abstract: Object: To provide a thermostable L-ribose isomerase. Means for Resolution: The thermostable L-ribose isomerase with MW. 32,000 (by SDS-PAGE), optimal temperature of 45° C., optimal pH of pH 9.0 (glycine-NaOH buffer), and stable physicochemical properties such as temperature stability up to 45° C. during thermal treatment at pH 9.0 for 10 minutes, and with an action to isomerize L-ribose to generate L-ribulose or of inversely to isomerize L-ribulose to generate L-ribose.Type: ApplicationFiled: March 26, 2007Publication date: December 31, 2009Applicants: NAT'L UNIVERSITY CORPORATION KAGAWA UNIVERSITY, RARE SUGAR PRODUCTION TECHNICAL RESEARCH LABS., MATSUTANI CHEMICAL INDUSTRY CO., LTD., KABUSHIKI KAISHA HAYASHIBARA SEIBUTSU KAGAKU KENKUJOInventors: Ken Izumori, Kenji Morimoto, Goro Takata, Masaaki Tokuda, Yoshio Tsujisaka, Kei Takeshita, Keiji Tsusaki, Kazuhiro Okuma
-
Publication number: 20090304891Abstract: Providing a D-psicose-containing sweetener with the modification of the taste of D-psicose, comprising D-psicose, a sugar alcohol and/or a high intensity sweetener, preferably containing D-psicose as the main component, particularly a low-calorie sweetener and/or a sweetener giving refreshing feel in the oral cavity, as well as foods and drinks obtained by using the D-psicose-containing sweetener with the modification of the taste of D-psicose, and other products given with sweetness. The sugar alcohol is one or more sugar alcohols selected from the group consisting of sorbitol, mannitol, lactitol, maltitol, xylitol and erythritol, while the high intensity sweetener is one or more high intensity sweeteners as selected from aspartame, acesulfame K, sodium cyclamate, sodium saccharin, Sucralose (under trade name), stevia sweetener, dulcin, taumatin, neotame and monellin.Type: ApplicationFiled: March 26, 2007Publication date: December 10, 2009Applicants: MATSUTANI CHEMICAL INDUSTRY CO., LTD., NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITYInventors: Hideki Fujihara, Kazuhiro Okuma, Tetsuo Iida, Ken Izumori, Masaaki Tokuda, Kazuhiro Fukuda
-
Publication number: 20050233048Abstract: The present invention provides an edible film comprising (A) a modified starch mixture of (a) at least one modified starch selected from the group consisting of etherified high amylose starches and esterified high amylose starches, and (b) at least one modified starch selected from the group consisting of etherified starch oxidation products, etherified starch acid decomposition products, etherified starch enzymatic decomposition products, and maltodextrins; (B) at least one gelling agent; and (C) at least one plasticizer.Type: ApplicationFiled: April 19, 2005Publication date: October 20, 2005Applicant: MATSUTANI CHEMICAL INDUSTRY CO., LTD.Inventors: Kosei Kitamura, Yoshifumi Yanetani, Hiroyuki Kataoka, Kazuhiro Okuma
-
Publication number: 20040202772Abstract: A method for the preparation of a glucose polymer having an ion-exchanging ability comprises the steps of drying a mixed aqueous solution containing a raw glucose polymer and a polyvalent carboxylic acid to thus form a uniform powdery mixture and then subjecting the powdery mixture to a heat treatment. The method of the present invention can ensure the achievement of a high reaction efficiency, is economically advantageous since it never requires the use of any expensive catalyst and does not require the use of any complicated step for the removal of impurities. The glucose polymer prepared by the method of the present invention is biodegradable and can be used in, for instance, various foods and/or builders.Type: ApplicationFiled: April 9, 2004Publication date: October 14, 2004Applicant: MATSUTANI CHEMICAL INDUSTRIES CO., LTD.Inventors: Isao Matsuda, Toyohide Nishibata, Takashi Ichihara, Yuriko Fukushima, Kazuhiro Okuma