Patents by Inventor Toru Uekawa
Toru Uekawa 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: 8461370Abstract: A process for producing comprising reacting a 3-formyl-2,2-dimethylcyclopropanecarboxylate and propionitrile in the presence of a base to obtain 3-(2-cyano-1-propenyl)-2,2-dimethylcyclopropanecarboxylic acid or its salt.Type: GrantFiled: April 5, 2010Date of Patent: June 11, 2013Assignee: Sumitomo Chemical Company, LimitedInventors: Toru Uekawa, Jun Ohshita, Ichiro Komoto, Kouji Yoshikawa
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Publication number: 20130006008Abstract: A method for producing a (Z)-cyanoalkenyl-cyclopropanecarboxylic acid compound, which includes the step of isomerizing an (E)-cyanoalkenyl-cyclopropanecarboxylic acid compound (1) into a (Z)-cyanoalkenyl-cyclopropanecarboxylic acid compound (2) in the presence of at least one isomerizing catalyst selected from the group consisting of bromine, hydrogen bromide, brominated carboxylic acids, brominated phosphorus compounds, N-brominated imide compounds, N-brominated amide compounds, brominated alkylsilane compounds, thionyl bromide, brominated boron compounds, brominated aluminum compounds, thiol compounds, disulfide compounds, thiocarboxylic acid compounds, nitric acid and nitrate salts: wherein R1 and R2 represent, R1 represents an alkyl group which may have a substituent, or a halogen atom, and R2 represents a hydrogen atom, an alkyl group which may have a substituent, or a benzyl group which may have a substituent.Type: ApplicationFiled: December 1, 2010Publication date: January 3, 2013Inventors: Toshio Somyo, Toru Uekawa, Tatsuya Mori
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Patent number: 8263797Abstract: A method for producing a cyclopropanecarboxylic acid compound represented by formula (VI) (wherein R denotes the same as below), which comprising reacting a compound represented by formula (V) (wherein R denotes a chain hydrocarbon group having 1 to 10 carbon atoms or the like, and R1 denotes a chain hydrocarbon group having 1 to 10 carbon atoms optionally substituted with a halogen atom or the like) with an alkali metal borohydride compound in the presence of a solvent.Type: GrantFiled: December 22, 2008Date of Patent: September 11, 2012Assignee: Sumitomo Chemical Company, LimitedInventors: Toru Uekawa, Jun Ohshita, Kouji Yoshikawa, Ichiro Komoto
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Publication number: 20120029227Abstract: A method for producing a cyclopropanecarboxylate represented by formula (III): wherein, R represents a chain hydrocarbon group having 1 to 10 carbon atoms optionally having at least one member selected from the group consisting of halogen atoms, acyl groups having 2 to 7 carbon atoms optionally having a substituent, alkoxy groups having 1 to 7 carbon atoms optionally having a substituent, alkylthio groups having 1 to 3 carbon atoms and phenyl groups optionally having a substituent, a cyclic hydrocarbon group having 3 to 10 carbon atoms or a hydrogen atom; comprising reacting a cyclopropanecarboxylate represented by formula (I): wherein, R represents the same meaning as described above; and 2-cyanopropionic acid in the presence of a base.Type: ApplicationFiled: March 12, 2010Publication date: February 2, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Jun Ohshita, Toru Uekawa
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Publication number: 20120016150Abstract: A process for producing comprising reacting a 3-formyl-2,2-dimethylcyclopropanecarboxylate and propionitrile in the presence of a base to obtain 3-(2-cyano-1-propenyl)-2,2-dimethylcyclopropanecarboxylic acid or its salt.Type: ApplicationFiled: April 5, 2010Publication date: January 19, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Toru Uekawa, Jun Ohshita, Ichiro Komoto, Kouji Yoshikawa
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Patent number: 8048916Abstract: A compound represented by the formula (I): has an excellent pest controlling activity and therefore is useful for an effective ingredient of a pest control composition.Type: GrantFiled: March 6, 2008Date of Patent: November 1, 2011Assignee: Sumitomo Chemical Company, LimitedInventors: Toru Uekawa, Jun Ohshita
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Patent number: 8039499Abstract: An ester compound represented by the formula (I): (wherein, R1 represents a C1-C3 alkyl group, a 2-propenyl group or a 2-propynyl group.) has excellent pest controlling activity and is useful as an active ingredient for a pest controlling agent.Type: GrantFiled: August 24, 2007Date of Patent: October 18, 2011Assignee: Sumitomo Chemical Company, LimitedInventors: Jun Ohshita, Toru Uekawa
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Publication number: 20100280267Abstract: A method for producing a cyclopropanecarboxylic acid compound represented by formula (VI) (wherein R denotes the same as below), which comprising reacting a compound represented by formula (V) (wherein R denotes a chain hydrocarbon group having 1 to 10 carbon atoms or the like, and R1 denotes a chain hydrocarbon group having 1 to 10 carbon atoms optionally substituted with a halogen atom or the like) with an alkali metal borohydride compound in the presence of a solvent.Type: ApplicationFiled: December 22, 2008Publication date: November 4, 2010Inventors: Toru Uekawa, Jun Ohshita, Kouji Yoshikawa, Ichiro Komoto
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Publication number: 20100041750Abstract: A compound represented by the formula (I): has an excellent pest controlling activity and therefore is useful for an effective ingredient of a pest control composition.Type: ApplicationFiled: March 6, 2008Publication date: February 18, 2010Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Toru Uekawa, Jun Ohshita
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Publication number: 20090253763Abstract: An ester compound represented by the formula (I): (wherein, R1 represents a C1-C3 alkyl group, a 2-propenyl group or a 2-propynyl group.) has excellent pest controlling activity and is useful as an active ingredient for a pest controlling agent.Type: ApplicationFiled: August 24, 2007Publication date: October 8, 2009Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Jun Ohshita, Toru Uekawa
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Patent number: 6376710Abstract: The present invention provides novel amidine compounds and novel pesticides containing these amidine compounds as active ingredients. The amidine compounds are expressed by formula I: wherein X and Y are the same or different and are independently halogen, nitro, cyano, or C1-C6 alkyl; Z is C1-C6 haloalkyl or C1-C6 haloalkoxy; R1 is hydrogen, halogen, C1-C6 alkyl, C1-C6 haloalkyl, C1-C6 alkoxy, C1-C6 haloalkoxy, or a group of formula: S(O)n—R5 (wherein R5 is C1-C6 alkyl or C1-C6 haloalkyl; and n is 0, 1, or 2); R2 and R3 are the same or different and are independently halogen or C1-C6 haloalkyl; and R4 is a group of formula: NR6R7 or N═CR8R9 (wherein R6 is hydrogen, C1-C6 alkyl, (C1-C6 alkoxy)-carbonyl, (C1-C6 alkoxy) C1-C6 alkyl, or C2-C6 acyl; R7 is hydrogen, C1-C6 alkyl, (C1-C6 alkoxy)carbonyl, or C2-C6 acyl; R8 is C1-C6 alkyl or hydrogen; and R9 is C1-C6 alkoxy, C1-C6 alkyl, or di(C1-C6 alkyl)amino).Type: GrantFiled: March 28, 2001Date of Patent: April 23, 2002Assignee: Sumitomo Chemical Co., Ltd.Inventors: Osamu Matsumoto, Toru Uekawa
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Publication number: 20010041740Abstract: The present invention provides novel amidine compounds and novel pesticides containing these amidine compounds as active ingredients.Type: ApplicationFiled: March 28, 2001Publication date: November 15, 2001Inventors: Osamu Matsumoto, Toru Uekawa
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Patent number: 6103750Abstract: A heterocyclic compound represented by the formula (I) ##STR1## wherein X and Y, which may be same or different, represent a hydrogen atom, a halogen atom, a nitro group or a cyano group, the formula --Z.sup.1 --Z.sup.2 --Z.sup.3 -- is a group represented by --CF.sub.2 --CF.sub.2 --O--, --CF.sub.2 --O--CF.sub.2 -- or --O--CF.sub.2 --O-- and R is represented by the formula: ##STR2## and an insecticidal and acaricidal agent comprising same as an active ingredient.Type: GrantFiled: October 27, 1998Date of Patent: August 15, 2000Assignee: Sumitomo Chemical Company, LimitedInventors: Toru Uekawa, Hiroki Tomioka
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Patent number: 5424275Abstract: Novel biphenyl derivatives represented by the formula (I) ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, X.sup.1, X.sup.2, X.sup.3 and Y are as defined hereinafter.Type: GrantFiled: October 14, 1993Date of Patent: June 13, 1995Assignee: Sumitomo Chemical Company, LimitedInventors: Mitsunori Hiratsuka, Toru Uekawa, Naonori Hirata, Kazuo Saito, Hiroyuki Yogai
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Patent number: 5354729Abstract: The present invention relates to novel N-acyldihydroquinoline derivatives, a method for producing the same and their use as herbicides.Type: GrantFiled: July 12, 1993Date of Patent: October 11, 1994Assignee: Sumitomo Chemical Company, LimitedInventors: Toru Uekawa, Mitsunori Hiratsuka, Naonori Hirata, Kazuo Saito, Hiroyuki Yogai
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Patent number: 5308829Abstract: There are disclosed novel benzofuran derivatives of the formula: ##STR1## Also disclosed are a herbicidal composition containing the above benzofuran derivative as an active ingredient and a method for exterminating undesired weeds by the application of a herbicidally effective amount of the above benzofuran derivative to an area where the undesired weeds grow or will grow.Type: GrantFiled: March 18, 1993Date of Patent: May 3, 1994Assignee: Sumitomo Chemical Company, LimitedInventors: Susumu Takemura, Masayuki Enomoto, Toru Uekawa, Masaharu Sakaki, Ryo Sato, Eiki Nagano
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Patent number: 5238906Abstract: Pyridone derivatives of the formula: ##STR1## wherein R is an alkyl group, an alkenyl group, an alkynyl group, a haloalkyl group, a haloalkenyl group or an alkoxyalkyl group, X is a hydrogen atom, a halogen atom, a methyl group optionally substituted with mono or poly halogen atoms or an ethyl group optionally substituted with mono or poly halogen atoms and Y is a hydrogen atom or a methyl group. Said compounds show a high herbicidal potency against undesired weeds.Type: GrantFiled: November 25, 1991Date of Patent: August 24, 1993Assignee: Sumitomo Chemical Company, LimitedInventors: Toru Uekawa, Susumu Takemura, Masayuki Enomoto, Masaharu Sakai, Ryo Sato, Eiki Nagano
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Patent number: 5169431Abstract: A compound of the formula: ##STR1## wherein R is a lower alkyl group, A is a hydrogen atom, a fluorine atom or a chlorine atom, X is an oxygen atom or a sulfur atom, Y is a hydrogen atom, a fluorine atom, a chlorine atom or a bromine atom and Z is a methyl group or an amino group, which is useful as a herbicide.Type: GrantFiled: September 20, 1991Date of Patent: December 8, 1992Assignee: Sumitomo Chemical Company, LimitedInventors: Masayuki Enomoto, Susumu Takemura, Toru Uekawa, Masaharu Sakaki, Ryo Sato, Eiki Nagano