Patents by Inventor Shiro Yamazaki

Shiro Yamazaki 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: 5162583
    Abstract: Disclosed herein are the derivative of benzyl ether represented by the formula (I) ##STR1## which is useful as an intermediate compound of the derivatives of 1,5-diphenyl-1H-1,2,4- triazole-3-carboxamide represented by the formula (II), ##STR2## wherein R is a straight-chain alkyl group having 1 to 10 carbon atoms which is non-substituted or substituted with 1 to 19 fluorine atoms, a branched alkyl group having 3 to 10 carbon atoms which is non-substituted or substituted with 1 to 19 fluorine atoms, a cyclic alkyl group having 3 to 10 carbon atoms, an alkyl group having 1 to 3 carbon atoms which is substituted with an alicyclic structure having 3 to 7 carbon atoms, a phenyl group or an aralkyl group having 7 to 9 carbon atoms; X.sup.1 is a halogen or an alkyl group having 1 to 3 carbon atoms; X.sup.2 is a hydrogen, a halogen or an alkyl group having 1 to 3 carbon atoms; Y.sup.1 is a hydrogen or a fluorine; Y.sup.2 is a hydrogen or a fluorine; and Z is a nitro group or an amino group.
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: November 10, 1992
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takafumi Shida, Hideo Arabori, Takeo Watanabe, Yoshikazu Kubota, Isao Ichinose, Yoichi Kanda, Shiro Yamazaki, Hiroyasu Shinkawa
  • Patent number: 5151114
    Abstract: Disclosed herein are N-substituted-3-(substituted hydrazino)benzenesulfonamide derivatives of the formula (I): ##STR1## wherein R.sup.1 is CF.sub.3, COOH or CCl.dbd.CClCOOH, R.sup.2 is H, Cl, C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.4 alkoxycarbonyl; Z is CH or N; X.sup.1 is C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkoxyl or Cl; and X.sup.2 is C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.3 alkoxyl, a process for the preparation thereof, and herbicidal compositions containing the N-substituted-3-(substituted hydrazino)benzenesulfonamide derivatives as active ingredients.
    Type: Grant
    Filed: March 11, 1991
    Date of Patent: September 29, 1992
    Inventors: Hideo Arahori, Shiro Yamazaki, Masato Arahira, Aiko Murakami
  • Patent number: 5129942
    Abstract: Disclosed herein are N-substituted-3-[(2,3-dimethylmaleimido)amino]benzenesulfonamide derivatives of the formula (I): ##STR1## wherein R is Cl, C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.4 alkoxycarbonyl; Z is CH or N; X.sup.1 is Cl or C.sub.1 -C.sub.3 alkoxyl; and X.sup.2 is C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.3 alkoxyl, a process for the preparation thereof, and herbicidal compositions containing the N-substituted-3-[(2,3-dimethylmaleimido)amino]benzenesulfonamide derivatives as active ingredients.
    Type: Grant
    Filed: March 8, 1991
    Date of Patent: July 14, 1992
    Assignee: Kureha Kagaku Kogyo K.K.
    Inventors: Hideo Arabori, Shiro Yamazaki, Masato Arahira, Aiko Murakami
  • Patent number: 5130475
    Abstract: Disclosed herein is a derivative of 1,5-diphenyl-1H-1,2,4-triazole-3-carboxamide represented by the following formula (I): ##STR1## wherein R represents an alkyl group of 2 to 10 carbon atoms, which is substituted by fluorine atom(s), and X represents a hydrogen atom or a fluorine atom, a process for producing the derivative and a herbicidal compositions containing the derivative of 1,5-diphenyl-1H-1,2,4-triazole-3-carboxamide as an active ingredient.
    Type: Grant
    Filed: November 26, 1991
    Date of Patent: July 14, 1992
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takafumi Shida, Hideo Arabori, Takeo Watanabe, Shiro Yamazaki, Hiroyasu Shinkawa
  • Patent number: 5127937
    Abstract: Disclosed herein are N-substituted-3-(nitrogen-containing 5-membered ring)benzenesulfonamide derivatives of the formula (I): ##STR1## R.sup.1 is H, Cl, C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.4 alkoxycarbonyl; Z is CH or N; X.sup.1 is C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkoxyl or Cl; and X.sup.2 is C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.3 alkoxyl, a process for the preparation thereof, and herbicidal compositions containing the N-substituted-3-(nitrogen-containing 5-membered ring)-benzenesulfonamide derivatives as active ingredients.
    Type: Grant
    Filed: February 2, 1990
    Date of Patent: July 7, 1992
    Assignee: Kureha Kagaku Kogyo K.K.
    Inventors: Hideo Arabori, Shiro Yamazaki, Masato Arahira, Aiko Murakami
  • Patent number: 5094684
    Abstract: Disclosed herein is a derivative of 1,5-diphenyl-1H-1,2,4-triazole-3-carboxamide represented by the following formula (I): ##STR1## wherein R represents an alkyl group of 2 to 10 carbon atoms, which is substituted by fluorine atom(s), and X represents a hydrogen atom or a fluorine atom, a process for producing the derivative and herbicidal compositions containing the derivative of 1,5-diphenyl-1H-1,2,4-triazole-3-carboxamide as an active ingredient.
    Type: Grant
    Filed: July 17, 1990
    Date of Patent: March 10, 1992
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takafumi Shida, Hideo Arabori, Takeo Watanabe, Shiro Yamazaki, Hiroyasu Shinkawa
  • Patent number: 5059238
    Abstract: Disclosed herein are N-substituted-3-(substituted hydrazino)benzenesulfonamide derivatives of the formula (I): ##STR1## wherein R.sup.1 is CF.sub.3, COOH or CCl.dbd.CClCCOOH, R.sup.2 is H, Cl, C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.4 alkoxycarbonyl; Z is CH or N; X.sup.1 is C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkoxyl or Cl; and X.sup.2 is C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.3 alkoxyl, a process for the preparation thereof, and herbicidal compositions containing the N-substituted-3-(substituted hydrazino)benzenesulfonamide derivatives as active ingredients.
    Type: Grant
    Filed: February 2, 1990
    Date of Patent: October 22, 1991
    Assignee: Kureha Kagaku Kogyo K.K.
    Inventors: Hideo Arabori, Shiro Yamazaki, Masato Arahira, Aiko Murakami
  • Patent number: 5028255
    Abstract: Disclosed herein are N-substituted-3-[(2,3-dimethylmaleimido) amino]benzenesulfonamide derivatives of the formula (I): ##STR1## wherein R is Cl, C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.4 alkoxycarbonyl; Z is CH or N; X.sup.1 is Cl or C.sub.1 -C.sub.3 alkoxy; and X.sup.2 is C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.3 alkoxyl, a process for the preparation thereof, and herbicidal compositions containing the N-substituted-3-[(2,3-dimethylmaleimido) amino]benzenesulfonamide derivatives as active ingredients.
    Type: Grant
    Filed: February 2, 1990
    Date of Patent: July 2, 1991
    Assignee: Kureha Kagaku Kogyo K.K.
    Inventors: Hideo Arabori, Shiro Yamazaki, Masato Arahira, Aiko Murakami
  • Patent number: 4992093
    Abstract: Disclosed herein are a derivative of azole having a usefulness in controlling plant fungal diseases, in regulating plant growth and in killing weeds, a process for producing the derivatives of azole and a composition having a fungicidal activity, a plant growth regulating activity and a herbicidal activity and containing the derivative of azole as an active ingredient for use in agriculture and horticulture.
    Type: Grant
    Filed: May 25, 1989
    Date of Patent: February 12, 1991
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Satoru Kumazawa, Atsushi Ito, Nobuo Sato, Toshihide Saishoji, Masahiro Hamada, Shiro Yamazaki, Hiroyuki Enari
  • Patent number: 4983209
    Abstract: Disclosed herein is a 4,5-dihydro-1H-1,2,4-triazole-3-carboxamide derivative represented by the formula (I): ##STR1## wherein R represents a straight-chain alkyl group having 1 to 10 carbon atoms which is non-substituted or substituted with 1 to 19 fluorine atoms or a branched alkyl group having 3 to 10 carbon atoms which is non-substituted or substituted with 1 to 19 fluorine atoms; X.sup.1 represents a halogen atom or an alkyl group having 1 to 3 carbon atoms; X.sup.2 represents hydrogen atom, a halogen atom or an alkyl group having 1 to 3 carbon atoms; Y.sup.1 represents hydrogen atom or fluorine atom; and Y.sup.2 represents hydrogen atom or fluorine atom. The derivatives of the formula (I) have high herbicidal activities and also show a excellent selectivity in their actions for killing weeds alone while doing any practical harm to the crops such as rice, wheat and corn.
    Type: Grant
    Filed: March 17, 1988
    Date of Patent: January 8, 1991
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takafumi Shida, Yoshikazu Kubota, Isao Ichinose, Takeo Watanabe, Shiro Yamazaki, Hiroyasu Shinkawa
  • Patent number: 4973353
    Abstract: Disclosed herein is a derivative of 1,5-diphenyl-1H-1,2,4-triazole-3-carboxamide represented by the formula (I): ##STR1## wherein R is a straight-chain alkyl group having 1 to 10 carbon atoms which is non-substituted or substituted with 1 to 19 fluorine atoms, a branched alkyl group having 3 to 10 carbon atoms which is non-substituted or substituted with 1 to 19 fluorine atoms, a cyclic alkyl group having 3 to 10 carbon atoms, an alkyl group having 1 to 3 carbon atoms which is substituted with an alicyclic structure having 3 to 7 carbon atoms, a phenyl group or an aralkyl group having 7 to 9 carbon atoms; X.sup.1 is a halogen or an alkyl group having 1 to 3 carbon atoms; X.sup.2 is a hydrogen, a halogen or an alkyl group having 1 to 3 carbon atoms; Y.sup.1 is a hydrogen or a fluorine; and Y.sup.2 is a hydrogen or a fluorine, and the herbicidal compositions containing said derivatives as active ingredient therefor.
    Type: Grant
    Filed: March 1, 1988
    Date of Patent: November 27, 1990
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takafumi Shida, Hideo Arabori, Takeo Watanabe, Yoshikazu Kubota, Isao Ichinose, Yoichi Kanda, Shiro Yamazaki, Hiroyasu Shinkawa
  • Patent number: 4968345
    Abstract: Disclosed herein is a phenylhydrazone derivative of oxamide represented by the formula (I): ##STR1## wherein R.sup.1 is straight-chain alkyl group having 2 to 10 carbon atoms, branched alkyl group or cyclic alkyl group having 3 to 10 carbon atoms, alkyl group having 1 to 3 carbon atoms which is substituted with an alicyclic structure having 3 to 7 carbon atoms, phenyl group, halogen-substituted phenyl group, aralkyl group having 7 to 9 carbon atoms, alkenyl group having 3 to 6 carbon atoms, alkyl group having 2 to 4 carbon atoms which is substituted with alkoxy group having 1 to 4 carbon atoms, or alkyl group having 2 to 10 carbon atoms which is substituted with 1 to 19 fluorine atoms; and R.sup.2 is hydrogen, fluorine, chlorine, methyl group or methoxy group, and a herbicidal composition containing the derivative as active ingredient.
    Type: Grant
    Filed: March 2, 1988
    Date of Patent: November 6, 1990
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaishi
    Inventors: Takafumi Shida, Hideo Arabori, Takeo Watanabe, Yoichi Kanda, Shiro Yamazaki, Hiroyasu Shinkawa
  • Patent number: 4919707
    Abstract: Disclosed herein are a derivative of 1,5-diphenyl-1H-1,2,4-triazole-3-carboxamide represented by the formula (I): ##STR1## wherein R.sup.1 represents a straight-chain alkyl group of 2 to 10 carbon atoms; a branched-chain alkyl group or cycloalkyl group of 3 to 10 carbon atoms; a (cycloalkyl)alkyl group of 4 to 10 carbon atoms; a non-substituted- or halogen-substituted phenyl group; an aralkyl group of 7 to 9 carbon atoms; an alkenyl group of 3 to 6 carbon atoms or an alkyl group of 2 to 10 carbon atoms, which has been substituted by 1 to 19 fluorine atoms, and R.sup.2 represents a fluorine atom, a chlorine atom, a methyl group or a methoxy group and a herbicidal composition containing the derivative represented by the formula (I) as an active ingredient.
    Type: Grant
    Filed: April 24, 1987
    Date of Patent: April 24, 1990
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takafumi Shida, Hideo Arabori, Takeo Watanabe, Yohichi Kanda, Shiro Yamazaki, Hiroyasu Shinkawa
  • Patent number: 4902805
    Abstract: Disclosed herein are a derivative of dihydrotriazole represented by the general formula (I): ##STR1## wherein R.sup.1 represents an amino group, lower alkoxy group, or lower alkyl amino group, R.sup.2 represents a hydrogen atom, halogen atom, or lower alkyl group and R.sup.3 represents a hydrogen atom, lower alkyl group, benzyl group, furyl group, phenyl group or phenyl group substituted with a halogen atom, hydroxyl group, carboxyl group, methoxycarbonyl group, lower alkyl group or lower alkoxy group, and a herbicidal composition containing as an active ingredient at least one of the derivatives of dihydrotriazole.
    Type: Grant
    Filed: January 21, 1986
    Date of Patent: February 20, 1990
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takafumi Shida, Takeo Watanabe, Shiro Yamazaki, Hiroyasu Shinkawa, Keigo Satake
  • Patent number: 4897106
    Abstract: Disclosed herein are a derivative of 4,5-dihydro-1H-1,2,4-triazole-3-carboxamide represented by the formula (Io): ##STR1## wherein R.sup.1 represents a hydrogen atom, a halogen atom, an alkyl group of 1 to 3 carbon atoms or an alkoxy group of 1 to 3 carbon atoms, R.sup.2 represents a hydrogen atom or a halogen atom and R represents a straight-chain alkyl group of 1 to 8 carbon atoms, a branched-chain alkyl group of 3 to 8 carbon atoms, a cycloalkyl group of 3 to 8 carbon atoms, a (cycloalkyl)alkyl group of 4 to 8 carbon atoms, an alkenyl group of 3 to 8 carbon atoms, an alkynyl group of 3 to 8 carbon atoms, an alkoxyalkyl group of 3 to 8 carbon atoms, a phenyl group, an aralkyl group of 7 to 9 carbon atoms, a phenyl group substituted by halogen atom(s) or an alkyl group of 2 to 8 carbon atoms which is substituted by fluorine atom(s), an intermediate for producing the derivative and a herbicidal composition containing the derivative as an active ingredient.
    Type: Grant
    Filed: April 24, 1987
    Date of Patent: January 30, 1990
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takafumi Shida, Yoshikazu Kubota, Isao Ichinose, Shiro Yamazaki, Hiroyasu Shinkawa
  • Patent number: 4863505
    Abstract: Disclosed herein are a derivative of azole having a usefulness in controlling plant fungal diseases, in regulating plant growth and in killing weeds, a process for producing the derivative of azole and a composition having a fungicidal activity, a plant growth regulating activity and a herbicidal activity and containing the derivative of azole as an active ingredient for use in agriculture and horticulture.
    Type: Grant
    Filed: September 4, 1986
    Date of Patent: September 5, 1989
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Satoru Kumazawa, Atsushi Ito, Nobuo Sato, Toshihide Saishoji, Masahiro Hamada, Shiro Yamazaki, Hiroyuki Enari
  • Patent number: 4820334
    Abstract: A 1,2,4-triazole-3-carboxamide compound represented by the formula (I): ##STR1## wherein R represents a straight-chain or branched-chain saturated (C.sub.2 -C.sub.10)alkyl group which is unsubstituted or substituted by fluorine atom(s); a cyclic saturated (C.sub.3 -C.sub.10)alkyl group which is unsubstituted or substituted by fluorine atom(s); a straight-chain, branched-chain or cyclic unsaturated (C.sub.3 -C.sub.10)-alkyl group which is unsubstituted or substituted by fluorine atom(s); a group represented by the formula (II): ##STR2## wherein R.sup.1 represents a halogen atom, a (C.sub.1 -C.sub.3)alkyl group, a (C.sub.1 -C.sub.3)alkoxy group or a fluorine-substituted (C.sub.1 -C.sub.3)alkyl group, m is an integer of from 0 to 5 and n is 0 or 1; a straight-chain or branched-chain saturated (C.sub.1 -C.sub.8)alkoxy(C.sub.2 14 C.sub.10)alkyl group; a straight-chain or branched-chain unsaturated (C.sub.1 -C.sub.8)alkoxy(C.sub.2 -C.sub.10)alkyl group; a phenoxy(C.sub.2 -C.sub.6)alkyl group; an aralkoxy(C.sub.
    Type: Grant
    Filed: October 14, 1986
    Date of Patent: April 11, 1989
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takafumi Shida, Shiro Yamazaki, Hiroyasu Shinkawa
  • Patent number: 4795484
    Abstract: Disclosed herein is herbicidal composition comprising a derivative of 1,2,4-triazole as an active ingredient, represented by the general formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom, a halogen atom or a C.sub.1 -C.sub.2) alkyl group; R.sup.2 represents a hydrogen atom, a halogen atom, a (C.sub.1 -C.sub.2) alkyl group fluoromethyl group (--CH.sub.2 F),3,3,3-trifluoropopyl group, methoxy group, cyano group, methoxymethyl group, methylthio group, methoxycarbonyl group or isopropoxycarbonyl group and R.sup.3 represents a thiocarbamoyl group or a group represented by the general formula (II): ##STR2## wherein R.sup.4 represents a hydrogen atom, a (C.sub.1 -C.sub.2) alkyl group or a hydroxy (C.sub.1 -C.sub.2) alkyl group and R.sup.5 represents a hydrogen atom, a C.sub.1 -C.sub.2) alkyl group, halogeno (C.sub.1 -C.sub.2) alkyl group, hydroxy (C.sub.1 -C.sub.
    Type: Grant
    Filed: April 24, 1986
    Date of Patent: January 3, 1989
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Katsumichi Aoki, Takafumi Shida, Takeo Watanabe, Keigo Satake, Hiroyasu Shinkawa, Shiro Yamazaki
  • Patent number: 4690704
    Abstract: Disclosed herein are a derivative of tetrahydrobenzothiazole represented by the formula (I): ##STR1## wherein R represents a methyl group or ethyl group; R.sup.1 represents a hydrogen atom, a hydroxyl group, methoxy group or O.dbd.=together with R.sup.2 ; R.sup.2 represents a hydrogen atom or O.dbd.=together with R.sup.1 ; and X represents a methylene group, hydroxymethylene group, carbonyl group or --O-- with the proviso that R is not a methyl group when (1) R.sup.1 represents a hydroxyl group or methoxy group and X represents a methylene group or hydroxymethylene group or (2) R.sup.2 represents .dbd.O together with R.sup.1 and X represents a carbonyl group, and a herbicidal composition containing the same as an active ingredient.
    Type: Grant
    Filed: January 17, 1986
    Date of Patent: September 1, 1987
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Katsumichi Aoki, Takafumi Shida, Hideo Arabori, Satoru Kumazawa, Susumu Shimizue, Takeo Watanave, Yohichi Kanda, Keigo Satake, Shiro Yamazaki, Hiroyasu Shinkawa, Tsuneaki Chida
  • Patent number: 4650515
    Abstract: Disclosed herein are the derivatives of tetrahydrobenzothiazole represented by the general formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom, a straight-chain alkyl group having 1 to 6 carbon atoms or branched-chain alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms or a phenyl group and R.sup.2 represents a chemical group selected from the group consisting of: ##STR2## wherein R.sup.3 represents a hydrogen atom, a methyl group or an acetyl group and R.sup.4 represents a hydrogen atom, a hydroxyl group, methoxy group or acetoxy group and herbicidal compositions containing at least one of the derivatives of tetrahydrobenzothiazole as an active ingredient.
    Type: Grant
    Filed: November 21, 1984
    Date of Patent: March 17, 1987
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Katsumichi Aoki, Takafumi Shida, Yoichi Kanda, Keigo Satake, Hiroyasu Shinkawa, Shiro Yamazaki