Patents by Inventor Sohkichi Tajima

Sohkichi Tajima 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: 6469059
    Abstract: A fungicidal composition for paddy-rice plants has as active ingredients N-(1-cyano-1,2-dimethylpropyl)-2-(2,4-dichlorophenoxy)propanamide in combination with one or more compounds selected from fungicidally active compounds. The combination is useful in a method for disease control of paddy-rice plants.
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: October 22, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Tsutomu Nishiguchi, Sohkichi Tajima, Yoshinobu Yamamoto
  • Patent number: 6410574
    Abstract: The present invention relates to a fungicidal composition obtained by mixing a 1,2,3-thiadiazole derivative of general formula (I) useful as a plant disease controller with at least one fungicide selected from the compounds having a fungicidal activity against plant diseases, and to a method for using the same: wherein R1 is hydrogen, alkyl or cycloalkyl and R2 is CO—Y—R3, wherein Y is O, S, NR4 or the like and R3 is hydrogen, alkyl, phenyl, 5- or 6-membered heterocycle or the like.
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: June 25, 2002
    Assignee: Nihon Nohyaku Co., Ltd.
    Inventors: Tsutomu Nishiguchi, Tsuyoshi Takemoto, Sohkichi Tajima, Yoshinobu Yamamoto
  • 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
  • Publication number: 20020013350
    Abstract: The present invention relates to a fungicidal composition obtained by mixing a 1,2,3-thiadiazole derivative of general formula (I) useful as a plant disease controller with at least one fungicide selected from the compounds having a fungicidal activity against plant diseases, and to a method for using the same: 1
    Type: Application
    Filed: July 28, 1999
    Publication date: January 31, 2002
    Inventors: TSUTOMU NISHIGUCHI, TSUYOSHI TAKEMOTO, SOHKICHI TAJIMA, YOSHINOBU YAMAMOTO
  • 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: 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