Patents by Inventor Takeo Yoshimoto
Takeo Yoshimoto 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: 4918106Abstract: Disclosed herein are N-(2-chloro-4-nitrophenyl)-3-trifluoromethyl-benzenesulfonamide derivatives represented by the following general formula (I): ##STR1## wherein X and Y individually mean a hydrogen or chlorine atom and agricultural fungicides containing said derivatives.Type: GrantFiled: February 9, 1988Date of Patent: April 17, 1990Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Takeo Yoshimoto, Mitsumasa Umemoto, Keiichi Igarashi, Yutaka Kubota, Hideo Yamazaki, Yuji Enomoto, Hirohisa Yanagita
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N-(2-chloro-4-nitrophenyl)-(benzenesulfonamide derivative and agricultural fungicide containing same
Patent number: 4870107Abstract: Disclosed herein are N-(2-chloro-4-nitrophenyl)-benzenesulfonamide derivatives represented by the following general formula (I): ##STR1## wherein X and Y individually mean a hydrogen or chlorine atom and Z denotes a chlorine atom or trifluoromethyl group, and agricultural fungicides containing said derivatives.Type: GrantFiled: October 7, 1987Date of Patent: September 26, 1989Assignee: Mitsui Toatsu Chemicals, IncorporatedInventors: Takeo Yoshimoto, Mitsumasa Umemoto, Keiichi Igarashi, Yutaka Kubota, Hideo Yamazaki, Yuji Enomoto, Hirohisa Yanagita -
Patent number: 4851445Abstract: Disclosed herein are N-(2-chloro-4-nitrophenyl)benzenesulfonamide derivatives represented by the following general formula (I): ##STR1## wherein X and Y individually mean a hydrogen or chlorine atom and Z denotes a chlorine atom or trifluoromethyl group, and agricultural fungicides containing said derivatives.Type: GrantFiled: June 28, 1988Date of Patent: July 25, 1989Assignee: Mitsui Toatsu Chemicals, IncorporatedInventors: Takeo Yoshimoto, Mitsumasa Umemoto, Keiichi Igarashi, Yutaka Kubota, Hideo Yamazaki, Yuji Enomoto, Hirohisa Yanagita
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Patent number: 4692466Abstract: Disclosed herein are N-(2-chloro-4-trifluoromethylphenyl)-3-trifluoromethylbenzensulfonamide derivatives represented by the following general formula (I): ##STR1## wherein X and Y individually mean a hydrogen or chlorine atom, and agricultural fungicides containing said derivatives.Type: GrantFiled: February 21, 1986Date of Patent: September 8, 1987Assignee: Mitsui Toatsu Chemicals, IncorporatedInventors: Takeo Yoshimoto, Mitsumasa Umemoto, Keiichi Igarashi, Yutaka Kubota, Hideo Yamazaki, Yuji Enomoto, Hirohisa Yanagita
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Patent number: 4619689Abstract: Novel diphenyl ether hydrazine derivatives, particularly 2-nitro-5 (nucleus-substituted phenoxy) phenylhydrazine derivatives are provided. They are useful as a selective herbicide having a high herbicidal activity and residual efficacy.Type: GrantFiled: October 12, 1984Date of Patent: October 28, 1986Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Takeo Yoshimoto, Akira Hosono, Joh Miki, Yasunobu Funakoshi, Takashi Fujita, Yoshikata Hojo
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Patent number: 4566897Abstract: Novel diphenyl ether hydrazine derivatives, particularly 2-nitro-5 (nucleus-substituted phenoxy) phenylhydrazine derivatives are provided. They are useful as a selective herbicide having a high herbicidal activity and residual efficacy.Type: GrantFiled: March 15, 1984Date of Patent: January 28, 1986Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Takeo Yoshimoto, Akira Hosono, Joh Miki, Yasunobu Funakoshi, Takashi Fujita, Yoshikata Hojo
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Patent number: 4515628Abstract: Novel diphenyl ether hydrazine derivatives, particularly 2-nitro-5 (nucleus-substituted phenoxy) phenylhydrazine derivatives are provided. They are useful as a selective herbicide having a high herbicidal acitivity and residual efficacy.Type: GrantFiled: July 28, 1981Date of Patent: May 7, 1985Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Takeo Yoshimoto, Akira Hosono, Joh Miki, Kengo Oda, Masaaki Ura, Naoki Sato, Teruhiko Toyama, Hajime Tachibana, Yuji Enomoto, Yasunobu Funakoshi, Takashi Fujita, Yoshikata Hojo
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Patent number: 4497828Abstract: 3-nitro-4-methylbenzene sulfon-2-chloro-4-nitroanilide ##STR1## as a novel compound as well as fungicidal composition containing the compound as the active ingredient. The compound of the invention is markedly effective in controlling plant diseases and, in particular, clubroot disease of Brassica spp., has no toxicity to men, beasts, and fishes, exerts no phytotoxicity on crops, has neither irritant nor unpleasant odor, and manifests its excellent fungicidal effect at low concentrations. Accordingly, it is ideally useful in fungicidal composition.Type: GrantFiled: December 30, 1982Date of Patent: February 5, 1985Assignee: Mitsui Toatsu Chemicals, IncorporatedInventors: Takeo Yoshimoto, Keiichi Igarashi, Hideo Yamazaki, Yoshio Takasawa, Hirohisa Yanagita
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Patent number: 4385189Abstract: Novel diphenyl ether compounds of the general formula: ##STR1## wherein X represents a hydrogen atom or a nitro group, process for preparing the same and diphenyl ethers of the general formula: ##STR2## wherein R represents a hydrogen atom, or substituted or unsubstituted alkyl group, alkenyl group or alkynyl group, and Y represents an oxygen atom, a sulfur atom, or the group ##STR3## wherein R' is defined as R above by reacting 2-chloro-4-trifluoromethylphenyl-3,4-dinitrophenyl ether with a compound of the general formula:RYH (III)wherein R and Y have the same meanings as defined above, respectively. The latter diphenyl ether compounds of the general formula (II) are useful as herbicides.Type: GrantFiled: January 23, 1981Date of Patent: May 24, 1983Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Takeo Yoshimoto, Keiichi Igarashi, Kengo Oda, Masaaki Ura, Naoki Sato
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Patent number: 4323389Abstract: Nitrodiphenyl ether derivatives of the general formula: ##STR1## wherein X represents chlorine, fluorine, methyl or trifluoromethyl and n is an integer of 1-3 are valuable as herbicides, the compounds and compositions containing these compounds possessing an excellent herbicidal activity to a wide variety of undesirable weeds with an extremely low toxicity to useful crops.Type: GrantFiled: July 8, 1980Date of Patent: April 6, 1982Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Takeo Yoshimoto, Takayuki Inoue, Hideo Michiyama, Takeo Harayama, Osamu Morikama, Yoshikata Hojo, Takao Baba, Teruhiko Toyama, Masaaki Ura, Yoshio Takasawa
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Patent number: 4308051Abstract: A tetrahydrofuran derivative represented by the general formula ##STR1## wherein X.sub.1 and X.sub.3 represent a hydrogen or halogen atom, and X.sub.2 represents a halogen atom or a trifluoromethyl group. The compounds have excellent herbicidal activity and can be prepared by reacting a compound of the formula ##STR2## wherein R represents a nitro group or a group of the formula ##STR3## in which X.sub.1, X.sub.2 and X.sub.3 are as defined above, with 3-hydroxytetrahydrofuran in the presence of an alkali.Type: GrantFiled: December 15, 1980Date of Patent: December 29, 1981Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Takeo Yoshimoto, Teruhiko Toyama, Keiichi Igarashi, Masaaki Ura, Yuji Enomoto, Yasunobu Funakoshi, Yoshikata Hojo
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Patent number: 4277624Abstract: Novel diphenyl ether compounds of the general formula: ##STR1## wherein X represents a hydrogen atom or a nitro group, process for preparing the same and diphenyl ethers of the general formula: ##STR2## wherein R represents a hydrogen atom, or substituted or unsubstituted alkyl group, alkenyl group or alkynyl group, and Y represents an oxygen atom, a sulfur atom, or the group ##STR3## wherein R' is defined as R above, by reacting 2-chloro-4-trifluoromethylphenyl-3,4-dinitrophenyl ether with a compound of the general formula:RYH (III)wherein R and Y have the same meanings as defined above, respectively. The latter diphenyl ether compounds of the general formula (II) are useful as herbicides.Type: GrantFiled: July 5, 1979Date of Patent: July 7, 1981Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Takeo Yoshimoto, Keiichi Igarashi, Kengo Oda, Masaaki Ura, Naoki Sato
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Patent number: 4264777Abstract: Nitrodiphenyl ether derivatives of the general formula: ##STR1## wherein X represents chlorine, fluorine, methyl or trifluoromethyl and n is an integer of 1-3 are valuable as herbicides, the compounds and compositions containing these compounds possessing an excellent herbicidal activity to a wide variety of undesirable weeds with an extremely low toxicity to useful crops.Type: GrantFiled: December 5, 1975Date of Patent: April 28, 1981Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Takeo Yoshimoto, Takayuki Inoue, Hideo Michiyama, Takeo Harayama, Osamu Morikawa, Yoshikata Hojo, Takao Baba, Teruhiko Toyama, Masaaki Ura, Yoshio Takasawa
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Patent number: 4062896Abstract: Nitrodiphenyl ether derivatives of the general formula: ##STR1## wherein X stands for Cl, F, CH.sub.3 or CF.sub.3, n is an integer of 1-3 with the proviso that X may be the same or different when n is 2 or 3 but X.sub.n should not be 2,4-dichloro substituent,Are valuable as herbicides possessing an excellent herbicidal activity to a wide variety of undesirable weeds with an extremely low toxicity to useful crops. These nitrodiphenyl ether derivatives are prepared by hydroxyethylation of a compound of the above general formula except that a halogen atom is present in place of nitro group and subsequent halogenation of the .beta.-hydroxyethoxy group of the resulting compound.Type: GrantFiled: October 16, 1974Date of Patent: December 13, 1977Assignee: Mitsui Toatsu Chemicals, IncorporatedInventors: Takeo Yoshimoto, Keiichi Igarashi, Takeo Harayama, Masaaki Ura, Teruhiko Toyama, Osamu Morikawa, Yoshio Takasawa, Yoshikata Hojo
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Patent number: 3969102Abstract: 2,4-Dichloro-3'-(.beta.-chloroethoxy)-4'-nitrodiphenyl ether is prepared by condensing 2,3',4-trichloro-4'-nitrodiphenyl ether with ethyleneglycol in the presence of an acid-binding agent and then chlorinating the hydroxyethoxy group of the resulting condensate. This compound posesses an excellent herbicidal activity to a wide variety of undesirable weeds with an extremely low phyto-toxicity to useful crops.Type: GrantFiled: August 21, 1974Date of Patent: July 13, 1976Assignee: Mitsui Toatsu Chemicals, IncorporatedInventors: Takeo Yoshimoto, Keiichi Igarashi, Takeo Harayama, Masaaki Ura, Naoki Sato, Teruhiko Toyama, Osamu Morikawa, Yoshio Takasawa, Taisuke Kurechi