Patents by Inventor Yoshitomo Tohyama
Yoshitomo Tohyama 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: 8466321Abstract: There are provided a 4-(trichloromethylthio)aniline represented by the general formula (II): wherein R1 represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R2 each independently represents a halogen atom, an alkyl group having 1 to 3 carbon atoms, or a perfluoroalkyl group having 1 to 3 carbon atoms, R3 represents a formyl group, an acetyl group, or a trifluoroacetyl group, and m represents an integer of 0 to 4, a method for producing the same, and a method for producing a 4-(trifluoromethylthio)aniline derivative using the 4-(trichloromethylthio)aniline. It becomes possible to produce a 4-(trifluoromethylthio)aniline with a high yield by using raw materials that can easily be obtained industrially and using general purpose production facilities.Type: GrantFiled: June 8, 2012Date of Patent: June 18, 2013Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshitomo Tohyama, Kengo Kanematsu
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Patent number: 8399707Abstract: There are provided a 4-(trichloromethylthio)aniline represented by the general formula (II): wherein R1 represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R2 each independently represents a halogen atom, an alkyl group having 1 to 3 carbon atoms, or a perfluoroalkyl group having 1 to 3 carbon atoms, R3 represents a formyl group, an acetyl group, or a trifluoroacetyl group, and m represents an integer of 0 to 4, a method for producing the same, and a method for producing a 4-(trifluoromethylthio)aniline derivative using the 4-(trichloromethylthio)aniline. It becomes possible to produce a 4-(trifluoromethylthio)aniline with a high yield by using raw materials that can easily be obtained industrially and using general purpose production facilities.Type: GrantFiled: July 1, 2008Date of Patent: March 19, 2013Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshitomo Tohyama, Kengo Kanematsu
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Publication number: 20120245388Abstract: There are provided a 4-(trichloromethylthio)aniline represented by the general formula (II): wherein R1 represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R2 each independently represents a halogen atom, an alkyl group having 1 to 3 carbon atoms, or a perfluoroalkyl group having 1 to 3 carbon atoms, R3 represents a formyl group, an acetyl group, or a trifluoroacetyl group, and m represents an integer of 0 to 4, a method for producing the same, and a method for producing a 4-(trifluoromethylthio)aniline derivative using the 4-(trichloromethylthio)aniline. It becomes possible to produce a 4-(trifluoromethylthio)aniline with a high yield by using raw materials that can easily be obtained industrially and using general purpose production facilities.Type: ApplicationFiled: June 8, 2012Publication date: September 27, 2012Inventors: Yoshitomo TOHYAMA, Kengo Kanematsu
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Publication number: 20100331578Abstract: There are provided a 4-(trichloromethylthio)aniline represented by the general formula (II): wherein R1 represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R2 each independently represents a halogen atom, an alkyl group having 1 to 3 carbon atoms, or a perfluoroalkyl group having 1 to 3 carbon atoms, R3 represents a formyl group, an acetyl group, or a trifluoroacetyl group, and m represents an integer of 0 to 4, a method for producing the same, and a method for producing a 4-(trifluoromethylthio)aniline derivative using the 4-(trichloromethylthio)aniline. It becomes possible to produce a 4-(trifluoromethylthio)aniline with a high yield by using raw materials that can easily be obtained industrially and using general purpose production facilities.Type: ApplicationFiled: July 1, 2008Publication date: December 30, 2010Inventors: Yoshitomo Tohyama, Kengo Kanematsu
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Publication number: 20090176786Abstract: The present invention relates to a benzoylurea compound represented by formula (I): wherein, X and Y represent a fluorine atom or a chlorine atom, R1 represents a lower alkyl group or the like, R2 represents a lower alkyl group, R3 represents a halogen atom or the like, R4 represents an alkylthio group optionally substituted with one or more of halogen atoms, or a salt thereof, and use thereof for controlling pests and the like.Type: ApplicationFiled: October 16, 2006Publication date: July 9, 2009Inventors: Masato Konobe, Shigeyuki Itoh, Norihisa Sakamoto, Araki Tomohiro, Yoshitomo Tohyama
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Patent number: 7223862Abstract: The present invention provides a process for producing the pyridine compound [d]: [wherein R3 and R4 are as defined below], which has an excellent herbicidal activity, by making a pyridine compound [a]: [wherein R1 represents a C1–C6 alkoxy group, R3 represents a halogen atom, cyano group or nitro group, and R4 ?????????? ? ???????? ???? ?? ??????? ????] ????? ???? ?? ?-diazoester compound [f]: N2CHCOR1[f] [wherein R1 is defined above] in the presence of an acid.Type: GrantFiled: May 9, 2006Date of Patent: May 29, 2007Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshitomo Tohyama, Takashi Komori, Yuzuru Sanemitsu
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Patent number: 7189855Abstract: 3-Phenoxy-2-pyridone compound can be produced by making the amide compound of the formula (1): wherein R is optionally substituted phenyl; react with a malonoaldehyde derivative such as 3-alkoxypropenal and the like in the presence of a protonic acid.Type: GrantFiled: June 20, 2003Date of Patent: March 13, 2007Assignee: Sumitomo Chemical Company, LimitedInventors: Takashi Furukawa, Noritada Matsuo, Yoshitomo Tohyama
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Patent number: 7157579Abstract: The present invention provides a process for producing the pyridine compound [d]: [wherein R3 and R4 are as defined below], which has an excellent herbicidal activity, by making a pyridine compound [a]: [wherein R1 represents a C1–C6 alkoxy group, R3 represents a halogen atom, cyano group or nitro group, and R4 represents a hydrogen atom or halogen atom] react with an ?-diazoester compound [f]: N2CHCOR1[f] [wherein R1 is defined above] in the presence of an acid.Type: GrantFiled: July 31, 2002Date of Patent: January 2, 2007Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshitomo Tohyama, Takashi Komori, Yuzuru Sanemitsu
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Publication number: 20060189484Abstract: The present invention provides a process for producing the pyridine compound [d]: [wherein R3 and R4 are as defined below], which has an excellent herbicidal activity, by making a pyridine compound [a]: [wherein R1 represents a C1-C6 alkoxy group, R3 represents a halogen atom, cyano group or nitro group, and R4 ?????????? ? ???????? ???? ?? ??????? ????] ????? ???? ?? ?-diazoester compound [f]: N2CHCOR1??[f] [wherein R1 is defined above] in the presence of an acid.Type: ApplicationFiled: May 9, 2006Publication date: August 24, 2006Applicant: Sumitomo Chemical Company, LimitedInventors: Yoshitomo Tohyama, Takashi Komori, Yuzuru Sanemitsu
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Publication number: 20050154210Abstract: 3-Phenoxy-2-pyridone compound can be produced by making the amide compound of the formula (1): wherein R is optionally substituted phenyl; react with a malonoaldehyde derivative such as 3-alkoxypropenal and the like in the presence of a protonic acid.Type: ApplicationFiled: June 20, 2003Publication date: July 14, 2005Inventors: Takashi Furukawa, Noritada Matsuo, Yoshitomo Tohyama
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Publication number: 20040254077Abstract: The present invention provides a process for producing the pyridine compound [d]: 1Type: ApplicationFiled: February 6, 2004Publication date: December 16, 2004Inventors: Yoshitomo Tohyama, Takashi Komori, Yuzuru Sanemitsu
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Patent number: 6667413Abstract: The present invention relates to an uracil compound of the formula [I]: wherein W represents oxygen, sulfur, imino or C1 to C3 alkylimino; Y represents oxygen, sulfur, imino or C1 to C3 alkylimino; R1 represents C1 to C3 alkyl or C1 to C3 haloalkyl; R2 represents C1 to C3 alkyl; R4 represents hydrogen or methyl; R5 represents C1 to C6 alkyl, C1 to C6 haloalkyl, or the like; X1 represents halogen, cyano or nitro; X2 represents hydrogen or halogen; and each of X3 and X4 independently represents hydrogen, halogen, C1 to C6 alkyl, or the like. The present compound has an excellent herbicidal activity.Type: GrantFiled: July 12, 2002Date of Patent: December 23, 2003Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshitomo Tohyama, Yuzuru Sanemitsu, Tomohiko Gotou
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Publication number: 20030130124Abstract: The present invention relates to an uracil compound of the formula [I]: 1Type: ApplicationFiled: July 12, 2002Publication date: July 10, 2003Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Yoshitomo Tohyama, Yuzuru Sanemitsu, Tomohiko Gotou
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Patent number: 6537948Abstract: The present invention relates to an uracil compound of the formula [I]: [wherein, Q—R3 represents a R3-substituted group of a 5-membered or 6-membered heterocyclic ring having one or two nitrogen selected from the group consisting of moieties represented in the specification (wherein, this heterocyclic ring may be substituted with at least one kind of substituent, Y represents oxygen, sulfur, imino or C1 to C3 alkylimino, R1 represents C1 to C3 alkyl or C1 to C3 haloalkyl, R2 represents C1 to C3 alkyl, R3 represents carboxy C1 to C6 alkyl, C1 to C6 alkoxycarbonyl C1 to C6 alkyl, OR7, SR8, N(R9)R10 or the like, X1 represents halogen, cyano, thiocarbamoyl or nitro, X2 represents hydrogen or halogen. {wherein, each of R7, R8 and R10 independently represents carboxy C1 to C6 alkyl, C1 to C6 alkoxycarbonyl C1 to C6 alkyl, C1 to C6 haloalkoxycarbonyl C1 to C6 alkyl, or the like, and R9 represents hydrogen or C1 to C6 alkyl.}.].Type: GrantFiled: January 31, 2001Date of Patent: March 25, 2003Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshitomo Tohyama, Yuzuru Sanemitsu
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Patent number: 6451740Abstract: The present invention relates to an uracil compound of the formula [I]: wherein W represents oxygen, sulfur, imino or C1 to C3 alkylimino; Y represents oxygen, sulfur, imino or C1 to C3 alkylimino; R1 represents C1 to C3 alkyl or C1 to C3 haloalkyl; R2 represents C1 to C3 alkyl; R4 represents hydrogen or methyl; R5 represents C1 to C6 alkyl, C1 to C6 haloalkyl, or the like; X1 represents halogen, cyano or nitro; X2represents hydrogen or halogen; and each of X3 and X4 independently represents hydrogen, halogen, C1 to C6 alkyl, or the like. The present compound has an excellent herbicidal activity.Type: GrantFiled: December 5, 2000Date of Patent: September 17, 2002Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshitomo Tohyama, Yuzuru Sanemitsu, Tomohiko Gotou
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Publication number: 20020013466Abstract: The present invention relates to an uracil compound of the formula [I]: 1Type: ApplicationFiled: December 5, 2000Publication date: January 31, 2002Inventors: Yoshitomo Tohyama, Yuzuru Sanemitsu, Tomohiko Gotou
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Patent number: 6107250Abstract: The present invention provides novel pyridazin-3-one derivatives of general formula (1): ##STR1## wherein R.sup.1 is haloalkyl; R.sup.2 and R.sup.3 are independently hydrogen, alkl, haloalkyl, or alkoxyalkyl; X is hydrogen or halogen; Y is halogen, nitro, cyano, or trihalomethyl; Z.sup.1 is oxygen, sulfur, CH.sub.2, or NH; R.sup.4 is hydrogen, halogen, or alkyl; and R.sup.5 is cycoalkyl, formyl, benzyl, alkyl with an epoxy group, or other substituents as defined in the description, and herbicides containing them as active ingredients.Type: GrantFiled: February 19, 1998Date of Patent: August 22, 2000Assignee: Sumitomo Chemical Company LimitedInventors: Yoshitomo Tohyama, Masayuki Enomoto, Hisayuki Hoshi