Patents by Inventor Kazuya Akimitsu
Kazuya Akimitsu 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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Publication number: 20240002828Abstract: A highly safe and highly heat-resistant L-rhamnose isomerase usable in the food industry and the production thereof are disclosed. The L-rhamnose isomerase is derived from a microorganism belonging to the genus Enterobacter, has a subunit molecular mass of 47 kDa as measured by SDS-PAGE, and has the following substrate specificities (A) isomerase activity that recognizes and reacts with a CHO group at C1 and an OH group at C2 of an aldose to convert the CHO group at C1 into an OH group and the OH group at C2 into a CO group, or recognizes and reacts with an OH group at C1 and a CO group at C2 of a ketose to convert the OH group at C1 into a CHO group and the CO group at C2 into an OH group; and (B) reactivity with L-rhamnose, L-lyxose, L-mannose, D-allose, D-ribose, and L-talose.Type: ApplicationFiled: November 30, 2021Publication date: January 4, 2024Applicant: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITYInventors: Kazuya AKIMITSU, Ken IZUMORI, Akihide YOSHIHARA, Shiro KATO, Susumu MOCHIZUKI, Hiromi YOSHIDA, Shigehiro KAMITORI
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Publication number: 20210395718Abstract: To provide a ketose 3-epimerase that can be used in the food industry and is highly safe, highly active, and heat resistant, a microorganism that produces this enzyme, and a method of producing a ketose. The present invention provides a ketose 3-epimerase that can be obtained from a microorganism belonging to the genus Arthrobacter, has a molecular mass of about 36 kDa as measured by SDS-PAGE, and has the following substrate specificities (A) and (B): (A) having an activity of epimerizing position 3 of a D- or L-ketose and preparing a D- or L-ketose corresponding thereto, and (B) having the highest epimerization activity on position 3 of D-allulose, among D- or L-ketohexoses.Type: ApplicationFiled: November 21, 2019Publication date: December 23, 2021Applicant: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITYInventors: Kazuya Akimitsu, Ken Izumori, Akihide Yoshihara, Shiro Kato, Susumu Mochizuki, Hiromi Yoshida, Shigehiro Kamitori
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Publication number: 20210324434Abstract: An object of the present invention is to provide a rare sugar-containing composition having improved properties as a sweetener while maintaining the excellent functionality of D-psicose. The invention relates to a method of producing a rare-sugar containing composition with D-fructose as a raw material. An intended product having a novel composition of D-glucose, D-fructose, and D-psicose is obtained by preparing a mixture of D-fructose and D-psicose by using ketose 3-epimerase in the first stage and converting D-fructose into D-glucose by using D-xylose isomerase inert to D-psicose in the second stage. The first-stage product is a mixture of D-fructose and rare sugar D-psicose. The resulting mixture is a sweetener having a taste quality equal to that of sugar.Type: ApplicationFiled: November 7, 2019Publication date: October 21, 2021Applicant: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITYInventors: Kazuya Akimitsu, Ken Izumori, Seizo Takaoka, Akihide Yoshihara, Shiro Kato, Susumu Mochizuki
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Patent number: 10638752Abstract: A composition comprising at least one monosaccharide selected from D-tagatose, D-allose, D-psicose, D-talose, D-sorbose, D-galactose, Lfructose, D-mannose and D-mannitol as an active ingredient and multiple surfactants selected from an anionic surfactant selected from aryl sulfonates, formalin condensates of aryl sulfonates, alpha-olefin sulfonates, alkyl sulfonates, alkyl diphenyl ether disulfonates, polyoxyethylene alkyl phenyl ether sulfonates, polyoxyethylene alkyl ether sulfosuccinic acid half esters, alkyl sulfates, sulfosuccinates, polyoxyalkylene aryl ether sulfates, polyoxyalkylene alkyl ether sulfates, polyoxyethylene-polyoxypropylene block polymer sulfates, polyoxyalkylene alkyl ether acetates, polyoxyalkylene aryl ether phosphates, polyoxyalkylene alkyl ether phosphates, polyoxyethylene-polyoxypropylene block polymer phosphates, alkyl phosphate esters, methyl taurates, polycarboxylates and fatty acid salts, wherein the anionic surfactants are at a blending ratio of 0.Type: GrantFiled: December 27, 2017Date of Patent: May 5, 2020Assignees: MITSUI CHEMICALS AGRO, INC., NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITYInventors: Toshiaki Ohara, Kiyoko Tanaka, Shuji Ishizaki, Shigehiro Kato, Kazuya Akimitsu, Ken Izumori
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Publication number: 20180116215Abstract: A composition comprising at least one monosaccharide selected from D-tagatose, D-allose, D-psicose, D-talose, D-sorbose, D-galactose, Lfructose, D-mannose and D-mannitol as an active ingredient and multiple surfactants selected from an anionic surfactant selected from aryl sulfonates, formalin condensates of aryl sulfonates, alpha-olefin sulfonates, alkyl sulfonates, alkyl diphenyl ether disulfonates, polyoxyethylene alkyl phenyl ether sulfonates, polyoxyethylene alkyl ether sulfosuccinic acid half esters, alkyl sulfates, sulfosuccinates, polyoxyalkylene aryl ether sulfates, polyoxyalkylene alkyl ether sulfates, polyoxyethylene-polyoxypropylene block polymer sulfates, polyoxyalkylene alkyl ether acetates, polyoxyalkylene aryl ether phosphates, polyoxyalkylene alkyl ether phosphates, polyoxyethylene-polyoxypropylene block polymer phosphates, alkyl phosphate esters, methyl taurates, polycarboxylates and fatty acid salts, wherein the anionic surfactants are at a blending ratio of 0.Type: ApplicationFiled: December 27, 2017Publication date: May 3, 2018Applicants: MITSUI CHEMICALS AGRO, INC., NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITYInventors: Toshiaki OHARA, Kiyoko TANAKA, Shuji ISHIZAKI, Shigehiro KATO, Kazuya AKIMITSU, Ken IZUMORI
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Patent number: 9861099Abstract: Provided is a composition that enhances the effects of monosaccharides. The composition is a composition comprising a monosaccharide as an active ingredient thereof and comprising at least one or more assistants selected from a nonionic surfactant (excluding acetylene glycol-based surfactants, fluorine-based surfactants and silicone-based surfactants), an anionic surfactant (excluding lignin sulfonate), a cationic surfactant, an amphoteric surfactant, a water-soluble polymer, an amino acid, an amino sugar, a disaccharide alcohol and a salt, and is effective as an agricultural control composition against plant disease, particularly plant disease caused by fungi and plant disease caused by bacteria.Type: GrantFiled: March 10, 2014Date of Patent: January 9, 2018Assignees: MITSUI CHEMICALS AGRO, INC., NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITYInventors: Toshiaki Ohara, Kiyoko Tanaka, Shuji Ishizaki, Shigehiro Kato, Kazuya Akimitsu, Ken Izumori
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Publication number: 20160037768Abstract: Provided is a composition that enhances the effects of monosaccharides. The composition is a composition comprising a monosaccharide as an active ingredient thereof and comprising at least one or more assistants selected from a nonionic surfactant (excluding acetylene glycol-based surfactants, fluorine-based surfactants and silicone-based surfactants), an anionic surfactant (excluding lignin sulfonate), a cationic surfactant, an amphoteric surfactant, a water-soluble polymer, an amino acid, an amino sugar, a disaccharide alcohol and a salt, and is effective as an agricultural control composition against plant disease, particularly plant disease caused by fungi and plant disease caused by bacteria.Type: ApplicationFiled: March 10, 2014Publication date: February 11, 2016Applicants: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY, MITSUI CHEMICALS AGRO, INC.Inventors: Toshiaki OHARA, Kiyoko TANAKA, Shuji ISHIZAKI, Shigehiro KATO, Kazuya AKIMITSU, Ken IZUMORI
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Patent number: 9125409Abstract: A plant disease control agent comprising at least one member selected from the group consisting of saccharides and substances each having a bactericidal and/or fungicidal activity. The plant disease control agents are effective for the control of cucumber, grape and cabbage downy mildew, damping-off in seedlings caused by Pythium spp, cucumber and barley powdery mildew, wheat stem rust, potato and tomato late blight, and others.Type: GrantFiled: August 18, 2009Date of Patent: September 8, 2015Assignees: MITSUI CHEMICALS AGRO, INC., NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITYInventors: Toshiaki Ohara, Yutaka Ishida, Rika Kudou, Kazumasa Kakibuchi, Kazuya Akimitsu, Ken Izumori, Shigeyuki Tajima
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Publication number: 20110281807Abstract: A plant disease control agent comprising D-tagatose as an active ingredient; and a plant disease control agent comprising at least one member selected from the group consisting of saccharides and substances each having a bactericidal and/or fungicidal activity. The plant disease control agents are effective for the control of cucumber, grape and cabbage downy mildew, damping-off in seedlings caused by Pythium spp, cucumber and barley powdery mildew, wheat stem rust, potato and tomato late blight, and others.Type: ApplicationFiled: August 18, 2009Publication date: November 17, 2011Applicants: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY, MITSUI CHEMICALS AGRO, INCInventors: Toshiaki Ohara, Yutaka Ishida, Rika Kudou, Kazumasa Kakibuchi, Kazuya Akimitsu, Ken Izumori, Shigeyuki Tajima
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Patent number: 8017828Abstract: To provide an agricultural chemical and the like with the use of an effect of inducing systemic acquired resistance in a plant. To provide a growth inhibitor of not only a plant pathogenic bacterium but also a harmful microorganism. Utilization of a rare sugar for inducing systemic acquired resistance in a plant or inhibiting the growth of a microorganism. Utilization thereof as an agricultural chemical with the use of the effect of inducing systemic acquired resistance in a plant, a plant disease inhibitor, an inducer of a plant growth regulatory factor (i.e., an inducer of plant hormone-like actions consisting of disease resistance, insect resistance, fruit maturation, breaking of dormancy, regulation of germination, drying resistance, and other than this, resistance to environmental stresses such as low temperature resistance, high temperature resistance, salt resistance and heavy metal resistance and promotion of flowering) and a microorganism growth inhibitor.Type: GrantFiled: May 24, 2005Date of Patent: September 13, 2011Assignees: Shikoku Research Institute Incorporated, National University Corporation Kagawa UniversityInventors: Ken Izumori, Kazuya Akimitsu, Shigeyuki Tajima, Mika Agarie, Tomohiro Yanagi, Ryosuke Mochioka
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Publication number: 20080182752Abstract: [OBJECT] To provide an agricultural chemical and the like with the use of an effect of inducing systemic acquired resistance in a plant. To provide a growth inhibitor of not only a plant pathogenic bacterium but also a harmful microorganism. [MEANS FOR RESOLUTION] Utilization of a rare sugar for inducing systemic acquired resistance in a plant or inhibiting the growth of a microorganism. Utilization thereof as an agricultural chemical with the use of the effect of inducing systemic acquired resistance in a plant, a plant disease inhibitor, an inducer of a plant growth regulatory factor (i.e., an inducer of plant hormone-like actions consisting of disease resistance, insect resistance, fruit maturation, breaking of dormancy, regulation of germination, drying resistance, and other than this, resistance to environmental stresses such as low temperature resistance, high temperature resistance, salt resistance and heavy metal resistance and promotion of flowering) and a microorganism growth inhibitor.Type: ApplicationFiled: May 24, 2005Publication date: July 31, 2008Applicants: National University Corportion Kagawa University, Shikoku Research Institute IncorporatedInventors: Ken Izumori, Kazuya Akimitsu, Shigeyuki Tajima, Mika Agarie, Tomohiro Yanagi, Ryosuke Mochioka