Patents by Inventor Yohichi Kanda

Yohichi Kanda 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: 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: 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: 4624697
    Abstract: Disclosed herein are a derivative of tetrahydrobenzothiazole represented by the formula (I): ##STR1## wherein R represents a methyl group, ethyl group or propyl group; R.sup.1 represents a hydrogen atom, a hydroxyl group methoxy group, acetoxy group, propionyloxy group, butylyloxy group, chloroacetoxy group, methoxyacetoxy group, C.sub.1 to C.sub.4 -alkylamino group or di(C.sub.1 to C.sub.4)-alkylamino group, or represents O.dbd.together with R.sup.2 ; R.sup.2 represents a hydrogen atom or represents O.dbd.together with R.sup.1 ; and X represents a methylene group, hydroxymethylene group, carbonyl group or --O--, and a herbicidal composition containing the same as an active ingredient.
    Type: Grant
    Filed: April 6, 1984
    Date of Patent: November 25, 1986
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Katsumichi Aoki, Takafumi Shida, Hideo Arabori, Satoru Kumazawa, Susumu Shimizu, Takeo Watanabe, Yohichi Kanda, Keigo Satake, Shiro Yamazaki, Hiroyasu Shinkawa, Tsuneaki Chida
  • Patent number: 4561877
    Abstract: Disclosed herein are a derivative of tetrahydrobenzothiazole represented by the formula (I): ##STR1## wherein R represents a hydrogen atom, a hydroxyl group or a lower acyloxy group such as acetoxy group and propionyloxy group and X represents a methylene group, C.sub.1 to C.sub.4 -alkylamino group, benzylamino group or --O--, and a herbicidal composition containing the same as an active ingredient.
    Type: Grant
    Filed: April 5, 1984
    Date of Patent: December 31, 1985
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Katsumichi Aoki, Takafumi Shida, Hideo Arabori, Satoru Kumazawa, Susumu Shimizu, Takeo Watanabe, Yohichi Kanda, Keigo Satake, Shiro Yamazaki, Hiroyasu Shinkawa, Tsuneaki Chida
  • Patent number: 4551168
    Abstract: Disclosed herein are a derivative of tetrahydrobenzothiazole represented by the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 represent respectively a straight chain alkyl group having 1 to 6 carbon atoms or a branched chain alkyl group having 1 to 6 carbon atoms, and a herbicidal composition containing the same as an active ingredient.
    Type: Grant
    Filed: April 5, 1984
    Date of Patent: November 5, 1985
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Katsumichi Aoki, Takafumi Shida, Satoru Kumazawa, Susumu Shimizu, Yohichi Kanda, Keigo Satake, Shiro Yamazaki, Hiroyasu Shinkawa, Tsuneaki Chida, Hideo Arabori, Takeo Watanabe
  • Patent number: 4549902
    Abstract: Disclosed herein are a salt of a derivative of N-(tetrahydrobenzothiazolylcarbamoyl)oxamic acid, represented by the formula: ##STR1## wherein R.sup.1 represents a straight-chain alkyl group having one to six carbon atoms, branched-chain alkyl group having up to and including six carbon atoms, cyclic alkyl group having up to and including six carbon atoms or a phenyl group; R.sup.2 represents a hydrogen atom or a methyl group; M represents an alkali metal atom or an alkaline earth metal atom; n is 1 when M is an alkali metal atom and n is 1/2 when M is an alkaline earth metal atom and M' is a hydrogen atom or the same as M, and a herbicidal composition containing the same as an active ingredient.
    Type: Grant
    Filed: April 6, 1984
    Date of Patent: October 29, 1985
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Katsumichi Aoki, Takafumi Shida, Hideo Arabori, Satoru Kumazawa, Susumu Shimizu, Takeo Watanabe, Yohichi Kanda, Keigo Satake, Shiro Yamazaki, Hiroyasu Shinkawa, Tsuneaki Chida