Patents by Inventor Kenji Tsubata

Kenji Tsubata 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).

  • Patent number: 7057067
    Abstract: The present invention provides a process for producing 2-halobenzoic acids of the general formula (I), characterized by reacting a benzoic acid of formula (II) with a halogenating agent in the presence of Pd catalyst: (wherein A is —OH, —OM (M is alkali metal), —N(R6)R7 (R6 and R7 are each H, C1–C6 alkyl, optionally substituted phenyl, or the like); R is H, C1–C6 alkyl, C1–C6 alkylcarbonyl, carboxyl, C1–C12 alkoxycarbonyl, optionally substituted phenylcarbonyl, or the like; n is 0 to 4; X is Cl, Br or I, or alternatively (R)n may be present on benzene-constituting carbon atoms adjacent to each other and form a C3–C4 alkylene- or C3–C4 alkenylene-fused ring).
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: June 6, 2006
    Assignee: Nihon Nohyaku Co., Ltd.
    Inventors: Hiroki Kodama, Takeshi Katsuhira, Tateki Nishida, Tomokazu Hino, Kenji Tsubata
  • Patent number: 6717013
    Abstract: The present invention provides an aniline derivative represented by the formula (I) wherein R1 and R2 are each H, (C1-12)alkyl, (C3-8)cycloalkyl, hydroxy(C1-12)alkyl, hydroxycarbonyl (C1-12)alkyl, (C1-6)-alkoxycarbonyl(C1-6)alkyl, —COR8, wherein R8 is H, halo-(C1-12)alkyl, (C3-8)cycloalkyl or (substituted) phenyl, COOR9, wherein R9 is a halo(C1-6)alkyl group, (substituted) phenyl or (substituted) benzyl; R3, R4, R5, R6 and R7 are each H, halogen, OH, nitro, halo(C1-12)alkylthio, (substituted) amino-(C1-2)alkyl, (substituted) phenyl, (substituted) benzyl, amino, —N(R10)R11 wherein R10 and R11 are each H, alkyl, cycloalkyl, (substituted) phenyl, (substituted) benzyl, —COR8 or COOR9, or (C2-27)perfluoroalkyl, etc., and a process for producing the aniline derivative. According to the process of the present invention, perfluoroalkylaniline derivatives can be obtained by using various anilines as the substrate with a high position selectivity and high yield.
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: April 6, 2004
    Assignee: Nihon Nohyaku Co., Ltd.
    Inventors: Masanobu Onishi, Akihiko Yoshiura, Eiji Kohno, Kenji Tsubata
  • Publication number: 20030204104
    Abstract: The present invention provides an aniline derivative represented by the formula (I) 1
    Type: Application
    Filed: May 14, 2003
    Publication date: October 30, 2003
    Inventors: Masanobu Onishi, Akihiko Yoshiura, Eiji Kohno, Kenji Tsubata
  • Patent number: 6639109
    Abstract: The present invention relates to a thioalkylamine derivative represented by general formula (I); and a process for production thereof: wherein each of R1 and R2 is H, (C1-C4)alkyl, (C3-C8)cycloalkyl, (C3-C8)cycloalkyl(C1-C4)alkyl, (substituted) phenyl, (substituted) phenyl(C1-C4)alkyl, or the like; each of R3 and R4 is H or a (C1-C4)alkyl group; each of R5 and R6 is H, (C1-C4)alkyl, a (substituted) phenyl group or a (substituted) phenyl(C1-C4)alkyl group; alternatively each of R1 and R2, R1 and R3 or R5, R3 and R4, R3 and R5 or R5 and R6 may together form lower alkylene; and R is (C1-C12)alkyl, (C3-C8)cycloalkyl, (C3-C8)cycloalkyl(C1-C4)alkyl, (substituted) phenyl, (substituted) phenyl(C1-C4)alkyl, a naphthyl group, a (substituted) aromatic heterocyclic, or the like.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: October 28, 2003
    Assignee: Nihon Nohyaku Co., Ltd.
    Inventors: Osamu Sanpei, Kenji Tsubata
  • Publication number: 20030181759
    Abstract: The present invention provides a process for producing 2-halobenzoic acids of the general formula (I), characterized by reacting a benzoic acid of formula (II) with a halogenating agent in the presence of Pd catalyst: 1
    Type: Application
    Filed: May 29, 2003
    Publication date: September 25, 2003
    Inventors: Hiroki Kodama, Takeshi Katsuhira, Tateki Nishida, Tomokazu Hino, Kenji Tsubata
  • Patent number: 6600074
    Abstract: The present invention provides an aniline derivative represented by the formula (I) wherein R1 and R2 are each H, (C1-12)alkyl, (C3-8)cycloalkyl, hydroxy(C1-12)alkyl, hydroxycarbonyl (C1-12)alkyl, (C1-6)-alkoxycarbonyl(C1-6)alkyl, —COR8, wherein R8 is H, halo-(C1-12)alkyl, (C3-8)cycloalkyl or (substituted) phenyl, COOR9, wherein R9 is a halo(C1-6)alkyl group, (substituted) phenyl or (substituted) benzyl; R3, R4, R5, R6and R7 are each H, halogen, OH, nitro, halo(C1-12)alkylthio, (substituted)amino-(C1-2)alkyl, (substituted) phenyl, (substituted) benzyl, amino, —N(R10)R11 wherein R10 and R11 are each H, alkyl, cycloalkyl, (substituted) phenyl, (substituted) benzyl, —COR8 or COOR9, or (C2-27)perfluoroalkyl, etc., and a process for producing the aniline derivative. According to the process of the present invention, perfluoroalkylaniline derivatives can be obtained by using various anilines as the substrate with a high position selectivity and high yield.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: July 29, 2003
    Assignee: Nihon Nohyaku Co., Ltd.
    Inventors: Masanobu Onishi, Akihiko Yoshiura, Eiji Kohno, Kenji Tsubata
  • Patent number: 6521649
    Abstract: A method for using a compound represented by the general formula: (wherein R1 and R2 are the substituents, respectively, defined in the specification) for agricultural and horticultural disease control, and a composition used in said method.
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: February 18, 2003
    Assignee: Nihon Nohayku Co., Ltd.
    Inventors: Kiyoshi Kuroda, Toru Uchikurohane, Sokichi Tajima, Kenji Tsubata
  • Publication number: 20020198399
    Abstract: The present invention provides an aniline derivative represented by the formula (I) 1
    Type: Application
    Filed: July 29, 2002
    Publication date: December 26, 2002
    Inventors: Masanobu Onishi, Akihiko Yoshiura, Eiji Kohno, Kenji Tsubata
  • Patent number: 6348460
    Abstract: A 1,2,3-thiadiazole derivative represented by general formula (I): [wherein R1 is hydrogen atom, halogen atom, (C1-C6) alkyl, phenyl, etc., R2 is the following group (A) or group (B): (wherein R3 is halogen atom, cyano, etc., R4 is hydrogen atom, halogen atom, cyano, etc., X and Y, same or different, are oxygen atom or sulfur atom, n is 0-3, R5 is hydrogen atom, (C1-C20) alkyl, etc., R6 is (C1-C20) alkyl, (C2-C20) alkenyl, etc., and m is 0-2)]; a plant disease controller containing said compound as active ingredient; and a method for using said controller.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: February 19, 2002
    Assignee: Nihon Nohyaku Co., Ltd.
    Inventors: Kenji Tsubata, Takashi Shimaoka, Tateki Nishida, Kazuhiro Takagi, Koji Baba, Sohkichi Tajima
  • Patent number: 6337341
    Abstract: A 1,2,3-thiadiazole derivative represented by general formula (I) or a salt thereof: wherein R1 is H, (halo) C1-C4 alkyl, 5- or 6-membered heterocycle containing 1 to 3 same or different O, N or S or the like, A is a group of the following formulas: wherein R2 and R3 are H, halogen, cyano, formyl, alkylthio, alkoxycarbonyl, substituted or unsubstituted phenyl, or the like, or R2 and R3, taken conjointly, may form a 3- to 7-membered ring including a C2-C6 alkylene group which may be intercepted by —O—, —S(O)n— (n is 0-2), —CO— or —NR8— (R8 is H, halogen or the like), B is cyano or an unsubstituted or substituted 5- or 6-membered heterocycle containing 1-3 hetero atoms selected from O, N and S, and m is 0-4; salts thereof; an agrohorticultural disease controller containing said derivative or salt; and method for using said disease controller.
    Type: Grant
    Filed: September 19, 2000
    Date of Patent: January 8, 2002
    Assignee: Nihon Nohyaku Co., Ltd.
    Inventors: Kenji Tsubata, Takashi Shimaoka, Osamu Sampei, Yoshitaka Taniyama, Kazuhiro Takagi, Tsutomu Nishiguchi, Sohkichi Tajima
  • Patent number: 6313154
    Abstract: A bis-thiadiazole derivative represented by general formula (I): wherein R1 and R2 represent H, C1-C8 alkyl, halo C1-C4 alkyl, unsubstituted or substituted phenyl, 5- or 6-membered heterocycle containing 1 to 3 hetero atoms selected from O, S and N, or the like; X1 and X2 represent O or S; Y1 and Y2 represent O, S or —N(R3)—; R represents C0-C30 alkylene. —(C)a(R3)(R4)— (R3 and R4 represent H, halogen, OH, C1-C4 alkyl, halo C1-C4 alkyl or the like) or the like; and a is 0 to 30; or a salt thereof, and an agrohorticultural disease controller containing said derivative or salt as an active ingredient.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: November 6, 2001
    Assignee: Nihon Nohyaku Co., Ltd.
    Inventors: Kenji Tsubata, Takashi Shimaoka, Kazuhiro Takagi, Koji Baba, Sohkichi Tajima
  • Patent number: 6194444
    Abstract: A 1,2,3-thiadiazole derivative represented by general formula (I) or a salt thereof: wherein R1 is H, (halo) C1-C4 alkyl, 5- or 6-membered heterocycle containing 1 to 3 same or different O, N or S, A is a group of the following formulas: wherein R2 and R3 are H, halogen, cyano, formyl, alkylthio, alkoxycarbonyl, substituted or unsubstituted phenyl, B is cyano or an unsubstituted or substituted 5- or 6-membered heterocycle containing 1-3 hetero atoms selected from O, N and S, and m is 0-4; an agrohorticultural disease controller containing said derivative.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: February 27, 2001
    Assignee: Nihon Nohyaku Co., LTD
    Inventors: Kenji Tsubata, Takashi Shimaoka, Osamu Sampei, Yoshitaka Taniyama, Kazuhiro Takagi, Tsutomu Nishiguchi, Sohkichi Tajima
  • Patent number: 6166054
    Abstract: A method for using a compound represented by the general formula: ##STR1## (wherein R.sup.1 and R.sup.2 are the substituents, respectively, defined in the specification) for agricultural and horticultural disease control, and a composition used in said method.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: December 26, 2000
    Assignee: Nihon Nohyaku Co., Ltd.
    Inventors: Kiyoshi Kuroda, Toru Uchikurohane, Sokichi Tajima, Kenji Tsubata
  • Patent number: 5714492
    Abstract: There are disclosed a compound represented by the general formula (I): ##STR1## (wherein R, R.sup.1, X, Y and n are as defined in the specification), a pest controller containing said compound as an active ingredient, a pest control method using said controller, and an intermediate for producing the compound of the above general formula (I).
    Type: Grant
    Filed: March 28, 1996
    Date of Patent: February 3, 1998
    Assignee: Nihon Nohyaku Co., Ltd.
    Inventors: Masahiro Uehara, Toshiaki Shimizu, Shinsuke Fujioka, Masayuki Kimura, Kenji Tsubata
  • Patent number: 5712399
    Abstract: An N-substituted phenylcarbamic acid derivative represented by the general formula (I): ##STR1## ?wherein R.sup.1 is H, a (C.sub.1-6)alkyl group, a halo(C.sub.1-6)alkyl group, a (C.sub.1-6)alkoxy(C.sub.1-6)alkyl group, a (C.sub.2-6)alkenyl group, a (C.sub.2-6)alkynyl group or a halo(C.sub.1-6)alkoxy(C.sub.1-6)alkyl group, R.sup.2 is H, a (C.sub.1-6)alkyl group, a halo(C.sub.1-6)alkyl group, a (C.sub.1-6)alkoxy(C.sub.1-6)alkyl group, a (C.sub.2-6)alkenyl group, a (C.sub.2-6)alkynyl group, a halo(C.sub.1-6)alkoxy(C.sub.1-6)alkyl group or a cyano(C.sub.1-6)alkyl group, R.sup.3 is a (C.sub.1-6)alkyl group or a halo(C.sub.1-6)alkyl group, each of R.sup.4 and R.sup.5 is a specific group, and Y is O or S! which is very effective in controlling powdery mildew, scab, late blight and gray mold; a process for producing said derivative; an agricultural and horticultural fungicide containing said derivative as an active ingredient; an intermediate of said derivative; and a process for producing the intermediate.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: January 27, 1998
    Assignee: Nihon Nohyaku Co., Ltd.
    Inventors: Masanobu Ohnishi, Sohkichi Tajima, Tsutomu Nishiguchi, Kenji Tsubata
  • Patent number: 5650434
    Abstract: An N-substituted phenylcarbamic acid derivative represented by the general formula (I): ##STR1## [wherein R.sup.1 is H, a (C.sub.1-6)alkyl group, a halo(C.sub.1-6)alkyl group, a (C.sub.1-6)alkoxy(C.sub.1-6)alkyl group, a (C.sub.2-6)alkenyl group, a (C.sub.2-6)alkynyl group or a halo(C.sub.1-6)alkoxy(C.sub.1-6)alkyl group, R.sup.2 is H, a (C.sub.1-6)alkyl group, a halo(C.sub.1-6)alkyl group, a (C.sub.1-6)alkoxy(C.sub.1-6)alkyl group, a (C.sub.2-6)alkenyl group, a (C.sub.2-6)alkynyl group, a halo(C.sub.1-6)alkoxy(C.sub.1-6)alkyl group or a cyano(C.sub.1-6)alkyl group, R.sup.3 is a (C.sub.1-6)alkyl group or a halo(C.sub.1-6)alkyl group, each of R.sup.4 and R.sup.5 is a specific group, and Y is O or S] which is very effective in controlling powdery mildew, scab, late blight and gray mold; a process for producing said derivative; an agricultural and horticultural fungicide containing said derivative as an active ingredient; an intermediate of said derivative; and a process for producing the intermediate.
    Type: Grant
    Filed: September 15, 1995
    Date of Patent: July 22, 1997
    Assignee: Nihon Nohyaku Co., Ltd.
    Inventors: Masanobu Ohnishi, Sohkichi Tajima, Tsutomu Nishiguchi, Kenji Tsubata
  • Patent number: 5104872
    Abstract: Compound of the general formula (I), which is useful as an agricultural and horticultural fungicide, an agricultural and horticultural fungicidal composition containing said compound, use of said composition for controlling plant disease, and process for the production of said compound: ##STR1## wherein ##STR2## shows a case in which R.sup.3 and R.sup.4 together form a cyclic substituent, and R.sup.1 and R.sup.4 are substituents disclosed in the specification.
    Type: Grant
    Filed: August 15, 1990
    Date of Patent: April 14, 1992
    Assignee: Nihon Hohyaku Co., Ltd.
    Inventors: Kenji Tsubata, Nobuyuki Niino, Katsutoshi Endo, Yoshinobu Yamamoto, Hideo Kanno