Patents by Inventor Tadao Asami
Tadao Asami 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: 11903386Abstract: A strigolactone analog-based composition comprising at least one compound represented by: (I) wherein Ra, Rb, Rc, Rf, Re, and Rz are selected. The compositions can be used in, for example, plant growth regulation and weed control, including controlling the germination of parasitic root plants, inhibiting rice tillering, and triggering leaf senescence.Type: GrantFiled: September 27, 2017Date of Patent: February 20, 2024Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Salim Al-Babili, Tadao Asami, Tsuyoshi Ohta
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Publication number: 20230054152Abstract: Disclosed herein are compounds and methods for regulating plant growth and/or combating root parasitic plants. Formulations containing one or more disclosed compounds or salts thereof, and one or more excipients are disclosed. Methods for regulating plant growth typically includes applying one or more formulations to a plant, a plant part, or a growing site of plant, where the one or more compounds or salts thereof can be in an effective amount to inhibit tillering, trigger senescence, and/or cause stunted growth of the plant. The plant can be a cereal, grain, or vegetable plant. Methods for combating root parasitic plants typically includes applying one or more formulations to a root parasitic plant, a plant part of root parasitic plant, or a growing site of root parasitic plant, where the one or more compounds or salts thereof can be in an effective amount to induce parasitic seed germination.Type: ApplicationFiled: November 25, 2020Publication date: February 23, 2023Inventors: Salim Al-Babili, Tadao Asami
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Publication number: 20230024778Abstract: The strigolactone receptor inhibitor for plants contains at least one kind of triazole urea compounds represented by the following formula (I) as an active ingredient. It can be applicable to an agricultural composition; a method for using the agricultural composition as, for example, a branching enhancer for plants; a germination inhibitor for Striga seeds, the germination inhibitor containing the triazole urea compound; and a novel triazole urea compound that is useful as a strigolactone receptor inhibitor for plants. In the formula, A represents a group represented by (A-1) or (A-2). R1 and R2 represent a hydrogen atom and so forth. R3 and R4 represent a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, or an aryl group having 6 to 20 carbon atoms and so forth. R3 and R4 may form a ring together.Type: ApplicationFiled: March 2, 2018Publication date: January 26, 2023Applicant: The University of TokyoInventors: Tadao Asami, Hidemitsu Nakamura, Ko Kikuzato, Wenqian Hu
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Publication number: 20220400669Abstract: Disclosed herein are compounds and methods for promoting plant growth. Formulations containing one or more disclosed compounds or salts thereof, and one or more excipients are disclosed. The formulation adjuvant can be a solid carrier, a liquid carrier, or a surface-active agent. Methods for promoting plant growth typically includes applying one or more formulations to a plant, a plant part, or a growing site of plant. The plant can be a cereal, grain, or vegetable plant. The plant part can be seed or seedling of a plant. The growing site of plant can be soil before, during, or after the plant is planted or a growing medium. In some embodiments, the one or more compounds or salts thereof in the one or more formulations are in an effective amount to decrease biosynthesis and release of strigolactone plant hormones from the plant.Type: ApplicationFiled: October 26, 2020Publication date: December 22, 2022Inventors: Salim Albabili, Tadao Asami
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Patent number: 11345885Abstract: This invention relates to an agent for inducing a callus comprising a compound represented by Formula (I) or a hydrolysis product of an amide bond thereof: wherein Ar1 represents phenyl substituted with substituent or substituents selected from alkoxy and methylenedioxy; Ar2 represents phenyl substituted with halogen; R1 and R2 each represent hydrogen, alkyl, cyano, or carboxyl; R1 and R2 may together form oxo; R3 to R10 each represent hydrogen or methyl; and R3 and R4, R5 and R6, R7 and R8, and/or R9 and R10 may together form oxo; a method for inducing a callus and a method for plant transformation using such agent for inducing a callus.Type: GrantFiled: April 28, 2020Date of Patent: May 31, 2022Assignee: RIKENInventors: Takeshi Nakano, Tadao Asami, Ayumi Yamagami, Hiroyuki Osada, Misato Ohtani, Taku Demura
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Patent number: 11312974Abstract: An object of the present invention is to identify a novel gene that effectively increases plant biomass and to provide said gene as well as techniques utilizing the same. This invention provides a nucleic acid encoding a protein, wherein the protein comprises the amino acid sequence of SEQ ID NO:1 and an amino acid sequence having at least 25% identity or at least 75% similarity to the amino acid sequence of SEQ ID NO:7 or 11, and has an activity to increase plant biomass, as well as techniques utilizing the same.Type: GrantFiled: March 30, 2020Date of Patent: April 26, 2022Assignees: KANEKA CORPORATION, RIKENInventors: Takeshi Nakano, Tadao Asami, Tomoko Miyaji, Ayumi Yamagami, Noriko Ishikawa
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Publication number: 20200255797Abstract: This invention relates to an agent for inducing a callus comprising a compound represented by Formula (I) or a hydrolysis product of an amide bond thereof: wherein Ar1 represents phenyl substituted with substituent or substituents selected from alkoxy and methylenedioxy; Ar2 represents phenyl substituted with halogen; R1 and R2 each represent hydrogen, alkyl, cyano, or carboxyl; R1 and R2 may together form oxo; R3 to R10 each represent hydrogen or methyl; and R3 and R4, R5 and R6, R7 and R8, and/or R9 and R10 may together form oxo; a method for inducing a callus and a method for plant transformation using such agent for inducing a callus.Type: ApplicationFiled: April 28, 2020Publication date: August 13, 2020Applicant: RIKENInventors: Takeshi Nakano, Tadao ASAMI, Ayumi YAMAGAMI, Hiroyuki OSADA, Misato OHTANI, Taku DEMURA
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Publication number: 20200248198Abstract: An object of the present invention is to identify a novel gene that effectively increases plant biomass and to provide said gene as well as techniques utilizing the same. This invention provides a nucleic acid encoding a protein, wherein the protein comprises the amino acid sequence of SEQ ID NO:1 and an amino acid sequence having at least 25% identity or at least 75% similarity to the amino acid sequence of SEQ ID NO:7 or 11, and has an activity to increase plant biomass, as well as techniques utilizing the same.Type: ApplicationFiled: March 30, 2020Publication date: August 6, 2020Applicants: JAPAN TOBACCO INC., RIKENInventors: Takeshi NAKANO, Tadao ASAMI, Tomoko MIYAJI, Ayumi YAMAGAMI, Noriko ISHIKAWA
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Patent number: 10676711Abstract: This invention relates to an agent for inducing a callus comprising a compound represented by Formula (I) or a hydrolysis product of an amide bond thereof: wherein Ar1 represents phenyl substituted with substituent or substituents selected from alkoxy and methylenedioxy; Ar2 represents phenyl substituted with halogen; R1 and R2 each represent hydrogen, alkyl, cyano, or carboxyl; R1 and R2 may together form oxo; R3 to R10 each represent hydrogen or methyl; and R3 and R4, R5 and R6, R7 and R8, and/or R9 and R10 may together form oxo; a method for inducing a callus and a method for plant transformation using such agent for inducing a callus.Type: GrantFiled: May 28, 2015Date of Patent: June 9, 2020Assignee: RikenInventors: Takeshi Nakano, Tadao Asami, Ayumi Yamagami, Hiroyuki Osada, Misato Ohtani, Taku Demura
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Patent number: 10640782Abstract: An object of the present invention is to identify a novel gene that effectively increases plant biomass and to provide said gene as well as techniques utilizing the same. This invention provides a nucleic acid encoding a protein, wherein the protein comprises the amino acid sequence of SEQ ID NO:1 and an amino acid sequence having at least 25% identity or at least 75% similarity to the amino acid sequence of SEQ ID NO:7 or 11, and has an activity to increase plant biomass, as well as techniques utilizing the same.Type: GrantFiled: October 9, 2015Date of Patent: May 5, 2020Assignees: JAPAN TOBACCO INC., RIKENInventors: Takeshi Nakano, Tadao Asami, Tomoko Miyaji, Ayumi Yamagami, Noriko Ishikawa
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Publication number: 20190357534Abstract: A strigolactone analog-based composition comprising at least one compound represented by: (I) wherein Ra, Rb, Rc, Rf, Re, and Rz are selected. The compositions can be used in, for example, plant growth regulation and weed control, including controlling the germination of parasitic root plants, inhibiting rice tillering, and triggering leaf senescence.Type: ApplicationFiled: September 27, 2017Publication date: November 28, 2019Inventors: Salim Al-Babili, Tadao Asami, Tsuyoshi Ohta
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Patent number: 10435394Abstract: The present invention concerns: a plant growth-promoting agent comprising a compound represented by Formula (I) or a salt thereof: wherein Ar1 represents a substituted or unsubstituted phenyl group, NZ represents a nitrogen-containing heterocyclic ring group or an acyclic nitrogen-containing group having a partial structure of the nitrogen-containing heterocyclic ring group, n is 0, 1, or 2, R1 and R2 each represent a hydrogen atom, a substituted or unsubstituted C1-3-alkyl group, a cyano group, or a carboxyl group, R1 and R2 may together form an oxo group, and when n is 2, R1 or R2 may be the same or different; and a method for promoting plant growth using the plant growth-promoting agent.Type: GrantFiled: October 7, 2015Date of Patent: October 8, 2019Assignee: RikenInventors: Takeshi Nakano, Tadao Asami, Hiroyuki Osada
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Patent number: 10323254Abstract: According to the present invention, a transgenic plant, wherein expression of the BSS1 gene having activity to bind to a BIL1 protein to inhibit the transfer of the BIL1 protein into the nucleus so as to down-regulate brassinosteroid signaling is suppressed or promoted, and a method for regulating plant growth, wherein expression of the BSS1 gene in a plant body is suppressed or promoted, are provided.Type: GrantFiled: January 25, 2016Date of Patent: June 18, 2019Assignee: RIKENInventors: Takeshi Nakano, Tadao Asami, Ayumi Yamagami, Hiroyuki Osada
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Publication number: 20180201947Abstract: An object of the present invention is to identify a novel gene that effectively increases plant biomass and to provide said gene as well as techniques utilizing the same. This invention provides a nucleic acid encoding a protein, wherein the protein comprises the amino acid sequence of SEQ ID NO:1 and an amino acid sequence having at least 25% identity or at least 75% similarity to the amino acid sequence of SEQ ID NO:7 or 11, and has an activity to increase plant biomass, as well as techniques utilizing the same.Type: ApplicationFiled: October 9, 2015Publication date: July 19, 2018Applicants: JAPAN TOBACCO INC., RIKENInventors: Takeshi NAKANO, Tadao ASAMI, Tomoko MIYAJI, Ayumi YAMAGAMI, Noriko ISHIKAWA
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Publication number: 20180030468Abstract: An object of the present invention is to elucidate the mechanism of plant growth regulation by brassinosteroid and the mechanism of transfer of the BIL1 protein that is the master transcription factor of brassinosteroid signaling into the nucleus, discover new factors involved in the mechanisms, and using the factors for plant growth regulation, thereby increasing production of plant biomass or crop. According to the present invention, a transgenic plant, wherein expression of the BSS1 gene having activity to bind to a BIL1 protein to inhibit the transfer of the BIL1 protein into the nucleus so as to down-regulate brassinosteroid signaling is suppressed or promoted, and a method for regulating plant growth, wherein expression of the BSS1 gene in a plant body is suppressed or promoted, are provided.Type: ApplicationFiled: January 25, 2016Publication date: February 1, 2018Applicant: RIKENInventors: Takeshi NAKANO, Tadao ASAMI, Ayumi YAMAGAMI, Hiroyuki OSADA
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Publication number: 20170305886Abstract: The present invention concerns: a plant growth-promoting agent comprising a compound represented by Formula (I) or a salt thereof: wherein Ar1 represents a substituted or unsubstituted phenyl group, NZ represents a nitrogen-containing heterocyclic ring group or an acyclic nitrogen-containing group having a partial structure of the nitrogen-containing heterocyclic ring group, n is 0, 1, or 2, R1 and R2 each represent a hydrogen atom, a substituted or unsubstituted C1-3-alkyl group, a cyano group, or a carboxyl group, R1 and R2 may together form an oxo group, and when n is 2, R1 or R2 may be the same or different; and a method for promoting plant growth using the plant growth-promoting agent.Type: ApplicationFiled: October 7, 2015Publication date: October 26, 2017Applicant: RIKENInventors: Takeshi Nakano, Tadao ASAMI, Hiroyuki OSADA
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Publication number: 20170105414Abstract: This invention relates to an agent for inducing a callus comprising a compound represented by Formula (I) or a hydrolysis product of an amide bond thereof: wherein Ar1 represents phenyl substituted with substituent or substituents selected from alkoxy and methylenedioxy; Ar2 represents phenyl substituted with halogen; R1 and R2 each represent hydrogen, alkyl, cyano, or carboxyl; R1 and R2 may together form oxo; R3 to R10 each represent hydrogen or methyl; and R3 and R4, R5 and R6, R7 and R8, and/or R9 and R10 may together form oxo; a method for inducing a callus and a method for plant transformation using such agent for inducing a callus.Type: ApplicationFiled: May 28, 2015Publication date: April 20, 2017Applicant: RIKENInventors: Takeshi Nakano, Tadao ASAMI, Ayumi YAMAGAMI, Hiroyuki OSADA, Misato OHTANI, Taku DEMURA
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Publication number: 20160145639Abstract: An object of the present invention is to develop and provide a method for enhancing the resistance of a plant itself to feeding damage by a phytophagous arthropod. A gene expression system containing, in an expressible state, a gene encoding a variant BIL1/BZR1 protein with a particular point mutation is transferred to a desired plant to thereby impart resistance to feeding damage by a phytophagous arthropod to the plant.Type: ApplicationFiled: June 19, 2014Publication date: May 26, 2016Inventors: Takeshi NAKANO, Tadao ASAMI, Ayumi YAMAGAMI
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Patent number: 9259000Abstract: An object of the present invention is to provide an auxin biosynthesis inhibitor superior to L-AOPP. The object can be attained by a compound represented by general formula (I): wherein, R1 to R5 and X are the same as defined in the specification or a salt or solvate thereof.Type: GrantFiled: February 28, 2012Date of Patent: February 16, 2016Assignees: Riken, Public University Corporation Yokohama City UniversityInventors: Yukihisa Shimada, Ko Kikuzato, Megumi Narukawa, Tadao Asami, Kazuo Soeno
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Patent number: 8741807Abstract: A compound useful as a plant activator for activating an endogenous defense system of a plant to control disease damage is provided. A compound represented by the formula: (R3)NH—(CH2)4—N(R1)—(CH2)3—NH(R2) (one of R1 and R2 represents a linear C6-18 alkanoyl group or alkenoyl group, the other represents hydrogen atom or a protective group of amino group; and R3 represents hydrogen atom or a protective group of amino group).Type: GrantFiled: February 23, 2012Date of Patent: June 3, 2014Assignees: The University of Tokyo, National Institute of Agrobiological Sciences, RikenInventors: Tadao Asami, Masashi Hikosaka, Masaki Mori, Satoru Maeda, Fumio Matsuda, Kazuki Saito