Patents by Inventor Ryota Maehata
Ryota Maehata 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: 20240008488Abstract: A compound of formula (I) or its N-oxide, where Q is Q1; ? represents the binding site to the rest of molecule; Z represents an oxygen atom; A3 represents CR4b; B1 represents CR1; B2 represents CR6b; B3 represents CR6c; B4 represents CR6d; R6 represents a C1-C6 chain hydrocarbon group; G1 represents a nitrogen atom or CR3a; G2 represents a nitrogen atom or CR3b; G3 represents a nitrogen atom or CR3c; G4 represents a nitrogen atom or CR3d; R1 represents a C1-C6 chain hydrocarbon group optionally substituted with one or more substituent(s) selected from the group consisting of a cyano group and a halogen atom; R2 represents a C1-C6 alkyl group; R3a, R3b, R3c, R3d, R4b, R6b, R6c, and R6d are identical to or different from each other, and each represent a C1-C6 alkyl group optionally substituted with one or more halogen atom(s); and n represents 0, 1, or 2.Type: ApplicationFiled: September 29, 2021Publication date: January 11, 2024Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koichiro DOTA, Takayuki SHIODA, Ryota MAEHATA, Yasumasa SAITO
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Patent number: 11779018Abstract: The present invention provides a compound that has an excellent control effect on arthropod pests, and is represented by formula (I) [wherein Q represents a group represented by Q1, or the like, n is 0, 1, or 2, R2 represents a C1-C6 alkyl group which may optionally have one or more halogen atoms, or the like, Ya represents an oxygen atom, a sulfur atom, or NR3a, G1 represents a nitrogen atom or CR5a, G2 represents a nitrogen atom or CR5b, A2 represents a nitrogen atom or CR4a, A3 represents a nitrogen atom or CR4b, A4 represents a nitrogen atom or CR4c, and R3a, R4a, R4b, R4c, R5a, and R5b represent a C1-C6 chain hydrocarbon group or the like, and T represents a C1-C10 chain hydrocarbon group which may optionally have one or more halogen atoms, or the like].Type: GrantFiled: March 29, 2019Date of Patent: October 10, 2023Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Ryota Maehata, Kohei Orimoto, Takamasa Tanabe, Yasumasa Saito
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Publication number: 20230115523Abstract: A compound of Formula (I) where Q represents a group represented by Q2, . represents a site of binding with the rest of molecules, T1 represents a group represented by T1-1, Z represents an oxygen atom, A2 represents CR4a, B1 represents CR38a, B2 represents CR1, B3 represents a nitrogen atom, G1 represents a nitrogen atom or CR3a, G2 represents a nitrogen atom or CR3b, G3 represents a nitrogen atom or CR3c, G4 represents a nitrogen atom or CR3d, R1 represents a C1-C6 chain hydrocarbon group that is substituted with one or more substituents selected from the group consisting of a cyano group and a halogen atom, R2 represents a C1-C6 alkyl group, and R3a, R3b, R3c, R3d, R4a, and R6 are the same or different and represent a C1-C6 chain hydrocarbon group, R38a represents a C1-C3 chain hydrocarbon group or the like, and n represents 0, 1, or 2.Type: ApplicationFiled: January 8, 2021Publication date: April 13, 2023Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Ryota MAEHATA, Takeshi TSURUDA, Takayuki SHIODA, Yasumasa SAITO
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Patent number: 11490622Abstract: The present invention provides a compound substituted with an excellent control effect against a harmful arthropod, which is represented by formula (I) Het-Q??(I) wherein Q represents a group represented by Q1, etc., Het represents a group represented by Het1, etc., R2 represents a C1-C6 alkyl group, etc., G1 represents a nitrogen atom or CR3a, G2 represents a nitrogen atom or CR3b, G3 represents a nitrogen atom or CR3c, G4 represents a nitrogen atom or CR3d, R3a, R3b, R3c, and R3d are identical to or different from each other and represent a C1-C6 chain hydrocarbon group, etc., n represents 0, 1, or 2, T represents a C1-C10 chain hydrocarbon group substituted with one or more halogen atoms, etc., A2 represents a nitrogen atom or CR4a, A3 represents a nitrogen atom or CR4b, R4a and R4b are identical to or different from each other and represent a C1-C6 chain hydrocarbon group, W1 represents an oxygen atom, etc., and R6 represents a C1-C6 chain hydrocarbon group, etc.Type: GrantFiled: December 21, 2018Date of Patent: November 8, 2022Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kohei Orimoto, Yuji Nakajima, Risa Kono, Ryota Maehata, Masayuki Tashiro
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Patent number: 11161843Abstract: Provided is a heterocyclic compound which exhibits an excellent controlling effect against harmful arthropods. In particular, provided is a heterocyclic compound represented by formula (I), wherein Q denotes a group represented by Q1 or the like, A2 denotes a nitrogen atom or CR4a, A3 denotes a nitrogen atom or CR4b, A4 denotes a nitrogen atom or CR4c, and T denotes a C1-C10 linear hydrocarbon group having one or more halogen atoms, or the like. Also provided is a composition that contains this compound and one or more components selected from the group consisting of group (a), group (b), group (c), group (d) and group (e) as listed in the description.Type: GrantFiled: January 23, 2018Date of Patent: November 2, 2021Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Ryota Maehata, Masaru Shimomura
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Patent number: 11149027Abstract: Provided is a compound of formula (I) or an N-oxide thereof, wherein Het1 represents Het1-1, Het1-2, Het1-3, Het1-4 or Het1-5, and the remaining variable groups are as defined in the specification. The compound of formula (I) or N-oxide compound thereof has an excellent control effect against arthropod pests.Type: GrantFiled: March 17, 2017Date of Patent: October 19, 2021Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kohei Orimoto, Takamasa Tanabe, Ryota Maehata, Yuji Nakajima
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Publication number: 20210084903Abstract: The present invention provides a compound substituted with an excellent control effect against a harmful arthropod, which is represented by formula (I) Het-Q??(I) wherein Q represents a group represented by Q1, etc., Het represents a group represented by Het1, etc., R2 represents a C1-C6 alkyl group, etc., G1 represents a nitrogen atom or CR3a, G2 represents a nitrogen atom or CR3b, G3 represents a nitrogen atom or CR3c, G4 represents a nitrogen atom or CR3d, R3a, R3b, R3c, and R3d are identical to or different from each other and represent a C1-C6 chain hydrocarbon group, etc., n represents 0, 1, or 2, T represents a C1-C10 chain hydrocarbon group substituted with one or more halogen atoms, etc., A2 represents a nitrogen atom or CR4a, A3 represents a nitrogen atom or CR4b, R4a and R4b are identical to or different from each other and represent a C1-C6 chain hydrocarbon group, W1 represents an oxygen atom, etc., and R6 represents a C1-C6 chain hydrocarbon group, etc.Type: ApplicationFiled: December 21, 2018Publication date: March 25, 2021Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kohei ORIMOTO, Yuji NAKAJIMA, Risa KONO, Ryota MAEHATA, Masayuki TASHIRO
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Publication number: 20210030003Abstract: The present invention provides a compound that has an excellent control effect on arthropod pests, and is represented by formula (I) [wherein Q represents a group represented by Q1, or the like, n is 0, 1, or 2, R2 represents a C1-C6 alkyl group which may optionally have one or more halogen atoms, or the like, Ya represents an oxygen atom, a sulfur atom, or NR3a, G1 represents a nitrogen atom or CR5a, G2 represents a nitrogen atom or CR5b, A2 represents a nitrogen atom or CR4a, A3 represents a nitrogen atom or CR4b, A4 represents a nitrogen atom or CR4c, and R3a, R4a, R4b, R4c, R5a, and R5b represent a C1-C6 chain hydrocarbon group or the like, and T represents a C1-C10 chain hydrocarbon group which may optionally have one or more halogen atoms, or the like].Type: ApplicationFiled: March 29, 2019Publication date: February 4, 2021Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Ryota MAEHATA, Kohei ORIMOTO, Takamasa TANABE, Yasumasa SAITO
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Publication number: 20200010445Abstract: The present invention provides a method for producing a compound represented by formula (4), which is useful as, for example, an agrochemical or an intermediate for agrochemical production, the method including the step of reacting a compound represented by formula (2) with an organic oxidant. [In the formulae, Q represents a pyridyl group, etc.; R1 represents a C1-6 alkyl group optionally having one or more halogen atoms; R2 represents, for example, a C1-6 alkyl group optionally having one or more halogen atoms; R3, R4, and R5 each represent a hydrogen atom, etc.; and n is 0, etc.Type: ApplicationFiled: April 18, 2018Publication date: January 9, 2020Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Takahiro KIMURA, Yasuhiro KOJIMA, Yumi HAYASHI, Ryota MAEHATA
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Publication number: 20190389858Abstract: Provided is a heterocyclic compound which exhibits an excellent controlling effect against harmful arthropods. In particular, provided is a heterocyclic compound represented by formula (I), wherein Q denotes a group represented by Q1 or the like, A2 denotes a nitrogen atom or CR4a, A3 denotes a nitrogen atom or CR4b, A4 denotes a nitrogen atom or CR4c, and T denotes a C1-C10 linear hydrocarbon group having one or more halogen atoms, or the like. Also provided is a composition that contains this compound and one or more components selected from the group consisting of group (a), group (b), group (c), group (d) and group (e) as listed in the description.Type: ApplicationFiled: January 23, 2018Publication date: December 26, 2019Applicant: Sumitomo Chemical Company, LimitedInventors: Ryota MAEHATA, Masaru SHIMOMURA
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Publication number: 20190106411Abstract: Provided is a compound of formula (I) or an N-oxide thereof, wherein Het1 represents Het1-1, Het1-2, Het1-3, Het1-4 or Het1-5, and the remaining variable groups are as defined in the specification. The compound of formula (I) or N-oxide compound thereof has an excellent control effect against arthropod pests.Type: ApplicationFiled: March 17, 2017Publication date: April 11, 2019Inventors: Kohei ORIMOTO, Takamasa TANABE, Ryota MAEHATA, Yuji NAKAJIMA
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Patent number: 10173997Abstract: Provided is a bipyridine compound that exhibits an excellent controlling effect against noxious arthropods. In particular, provided is a bipyridine compound of formula (I) or an N-oxide thereof in which the variable groups are as defined in the specification. Also provided are compositions containing the biypridine compound or an N-oxide thereof, and methods of using such compounds and compositions to control noxious arthropods.Type: GrantFiled: January 29, 2016Date of Patent: January 8, 2019Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Takamasa Tanabe, Yoshihiko Nokura, Ryota Maehata, Yuji Nakajima, Kohei Orimoto
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Patent number: 10172356Abstract: A bipyridine compound having an excellent controlling effect against noxious arthropods is provided. In particular, a bipyridine compound of formula (I) or an N-oxide thereof is provided in which the variable groups are as described in the specification. Also provided are compositions containing the bipyridine compound or an N-oxide thereof, and methods of using such compounds and compositions to control noxious arthropods.Type: GrantFiled: January 29, 2016Date of Patent: January 8, 2019Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Takamasa Tanabe, Yoshihiko Nokura, Ryota Maehata, Kohei Orimoto, Yuji Nakajima
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Publication number: 20180310559Abstract: A bipyridine compound having an excellent controlling effect against noxious arthropods is provided. In particular, a bipyridine compound of formula (I) or an N-oxide thereof is provided in which the variable groups are as described in the specification. Also provided are compositions containing the biypridine compound or an N-oxide thereof, and methods of using such compounds and compositions to control noxious arthropods.Type: ApplicationFiled: January 29, 2016Publication date: November 1, 2018Inventors: Takamasa TANABE, Yoshihiko NOKURA, Ryota MAEHATA, Kohei ORIMOTO, Yuji NAKAJIMA
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Patent number: 9924719Abstract: A pyridazine compound represented by formula (1): wherein A represents a nitrogen atom or a CR6, R1 represents a C2-C10 alkyl group having one or more halogen atoms, etc., R2 and R3 represent independently of each other a hydrogen atom, etc., R4 represents a C1-C6 chain hydrocarbon group optionally having one or more halogen atoms, R5 represents a C1-C6 chain hydrocarbon group optionally having one or more halogen atoms, etc., R6 represents a hydrogen atom, etc., n represents 0, 1, or 2, and p represents 0, 1, or 2, has an excellent efficacy for controlling harmful arthropods.Type: GrantFiled: September 29, 2015Date of Patent: March 27, 2018Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Takamasa Tanabe, Yoshihiko Nokura, Ryota Maehata, Kohei Orimoto, Yuji Nakajima
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Publication number: 20180009778Abstract: Provided is a bipyridine compound that exhibits an excellent controlling effect against noxious arthropods. In particular, provided is a bipyridine compound of formula (I) or an N-oxide thereof in which the variable groups are as defined in the specification. Also provided are compositions containing the biypridine compound or an N-oxide thereof, and methods of using such compounds and compositions to control noxious arthropods.Type: ApplicationFiled: January 29, 2016Publication date: January 11, 2018Inventors: Takamasa TANABE, Yoshihiko NOKURA, Ryota MAEHATA, Yuji NAKAJIMA, Kohei ORIMOTO
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Patent number: 9850209Abstract: A 3-(alkylsulfonyl)pyridine-2-carboxylic acid or a salt thereof can be manufactured by comprising: allowing a compound represented by formula (1-N): wherein X represents a halogen atom, to react with a compound represented by formula (2): R2SM2??(2) wherein R2 represents a C1-8 straight-chain alkyl group, and M2 represents a hydrogen atom or an alkali metal, to give a compound represented by formula (3-N): wherein R2 and X are as defined above; allowing the compound (3-N) to react with hydrogen peroxide in the presence of a tungsten catalyst and an acid; reducing the product in the presence of a base and a heterogeneous transition metal catalyst; and hydrolyzing the product in the presence of a base.Type: GrantFiled: June 22, 2015Date of Patent: December 26, 2017Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Takahiro Kimura, Ryota Maehata
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Patent number: 9815786Abstract: A compound represented by formula (7): or a salt thereof can be manufactured by the following steps: a step of allowing a compound represented by formula (1-S): to react with a compound represented by formula (2): R2SM2??(2) to give a compound represented by formula (3-S): a step of allowing the compound represented by formula (3-S) to react with hydrogen peroxide in the presence of a tungsten catalyst and an acid to give a compound represented by formula (6-S) or a salt thereof: and a step of reducing the compound represented by formula (6-S) or salt thereof in the presence of a base and a heterogeneous transition metal catalyst to give a compound represented by formula (7) or a salt thereof, wherein X, R1, R2, and M2 are defined in the specification.Type: GrantFiled: June 22, 2015Date of Patent: November 14, 2017Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Takahiro Kimura, Ryota Maehata
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Patent number: 9802930Abstract: A pyrimidinone compound represented by formula (1): [wherein: A1 represents a nitrogen atom or a CR4; A2 represents a nitrogen atom and A3 represents a CR3b, or A2 represents a CR3a and A3 represents a nitrogen atom; Q represents an oxygen atom or a sulfur atom; G represents a C2-C10 chain hydrocarbon group having one or more halogen atoms, etc.; R1 represents a C1-C6 chain hydrocarbon group optionally having one or more halogen atoms; R2 represents a C1-C6 chain hydrocarbon group optionally having one or more halogen atoms, etc.; R4 represents a hydrogen atom, etc.; R3, R3a, and R3b represent independently of each other a hydrogen atom, etc.; n represents 0, 1, or 2; and p represents 0, 1, 2, or 3] has an excellent efficacy for controlling harmful arthropods.Type: GrantFiled: September 18, 2015Date of Patent: October 31, 2017Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Takamasa Tanabe, Yoshihiko Nokura, Ryota Maehata, Kohei Orimoto, Yuji Nakajima
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Publication number: 20170305896Abstract: A pyrimidinone compound represented by formula (1): wherein: A1 represents a nitrogen atom or a CR4; A2 represents a nitrogen atom and A3 represents a CR3b, or A2 represents a CR3a and A3 represents a nitrogen atom; Q represents an oxygen atom or a sulfur atom; G represents a C2-C10 chain hydrocarbon group having one or more halogen atoms, etc.; R1 represents a C1-C6 chain hydrocarbon group optionally having one or more halogen atoms; R2 represents a C1-C6 chain hydrocarbon group optionally having one or more halogen atoms, etc.; R4 represents a hydrogen atom, etc.; R3, R3a, and R3b represent independently of each other a hydrogen atom, etc.; n represents 0, 1, or 2; and p represents 0, 1, 2, or 3 has an excellent efficacy for controlling harmful arthropods.Type: ApplicationFiled: September 18, 2015Publication date: October 26, 2017Inventors: Takamasa TANABE, Yoshihiko NOKURA, Ryota MAEHATA, Kohei ORIMOTO, Yuji NAKAJIMA