Patents by Inventor Takayoshi Takehi

Takayoshi Takehi 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: 6130187
    Abstract: A benzofuran-7-yl uracil derivative represented by the general formula (1): ##STR1## (wherein each of X and Y is a hydrogen atom, a halogen atom or the like, R.sup.1 is a hydrogen atom, an alkyl group or the like, R.sup.2 is a haloalkyl group or the like, R.sup.3 is a hydrogen atom, a halogen atom or the like, each of R.sup.4 and R.sup.5 which are independent of each other, is a hydrogen atom, an alkyl group, a haloalkyl group, a halogen atom, a cyano group, a phenyl group, a benzyl group, a nitro group or the like), and a herbicide containing it as an active ingredient.The compound of the present invention represented by the general formula (1) exhibits excellent herbicidal effects against various weeds which cause trouble in upland fields, such as, broad leaved weeds, gramineous weeds and perennial or annual cyperaceous weeds, over a wide range from the pre-emergence to the growing stage. It can further control annual weeds and perennial weeds growing in paddy fields.
    Type: Grant
    Filed: August 5, 1998
    Date of Patent: October 10, 2000
    Assignees: Kumiai Chemical Industry Co., Ltd., Ihara Chemical Industry Co., Ltd.
    Inventors: Masahiro Miyazaki, Takeshi Deguchi, Takayoshi Takehi, Masatoshi Tamaru, Yoshihiro Yamaji, Ryo Hanai, Sota Uotsu, Hideo Sadohara
  • Patent number: 5512551
    Abstract: The present invention provides benzohydroximoylazole derivatives represented by the following novel formula: ##STR1## wherein R is a branched alkyl group having not fewer than 3 carbon atoms, a fluorine-substituted alkyl group having not fewer than 2 carbon atoms, a branched alkoxy group having not fewer than 3 carbon atoms, a halogen-substituted alkoxy group having not fewer than 3 carbon atoms, a cycloalkyl group, a cycloalkylmethyl group which may be substituted with one or two alkyl groups, a substituted silylalkyl group, a substituted silylalkyloxy group, a cycloalkyloxy group which may be substituted with one or two alkyl groups, an alkylthio group, a halogen-substituted alkyloxyalkyl group, an alkynyl group, or a halogen-substituted alkenyloxy group;X is a hydrogen atom, a chlorine atom, or a fluorine atom;Y is an alkyl group; and Z is a nitrogen atom or a methyne group,and methods for producing the same, insecticides including the benzohydroximoylazole derivatives as an active ingredient.
    Type: Grant
    Filed: July 27, 1994
    Date of Patent: April 30, 1996
    Assignees: Kumiai Chemical Industry Co., Ltd., Ihara Chemical Industry Co., Ltd.
    Inventors: Keiji Toriyabe, Takayoshi Takehi, Yukio Nezu, Yuki Nakano, Tomonori Shimazu
  • Patent number: 5366988
    Abstract: The present invention provides benzohydroximoylazole derivatives represented by the following novel formula: ##STR1## wherein R is a branched alkyl group having not fewer than 5 carbon atoms, a fluorine-substituted alkyl group having not fewer than 2 carbon atoms, a branched alkoxy group having not fewer than 3 carbon atoms, a halogen-substituted alkoxy group having not fewer than 3 carbon atoms, a cycloalkyl group, a cycloalkylmethyl group which may be substituted with one or two alkyl groups, a substituted silylalkyl group, a substituted silylalkyloxy group, a cycloalkyloxy group which may be substituted with one or two alkyl groups, an alkylthio group, a halogen-substituted alkyloxyalkyl group, an alkynyl group, or a halogen-substituted alkenyloxy group;X is a hydrogen atom, a chlorine atom, or a fluorine atom;Y is an alkyl group; and Z is a nitrogen atom or a methyne group,and methods for producing the same, insecticides including the benzohydroximoylazole derivatives as an active ingredient.
    Type: Grant
    Filed: July 28, 1992
    Date of Patent: November 22, 1994
    Assignees: Kumiai Chemical Industry Co., Ltd., Ihara Chemical Industry Co., Ltd.
    Inventors: Keiji Toriyabe, Takayoshi Takehi, Yukio Nezu, Yuki Nakano, Tomonori Shimazu
  • Patent number: 5019151
    Abstract: A 2-phenoxypridimine derivative having the formula: ##STR1## wherein X is a halogen atom or ##STR2## wherein X.sup.1 is a halogen atom, a lower alkyl group or a lower alkoxy group and k is 0, 1, or 2; R.sup.1 is a hydrogen atom, a benzyl group, --(CH.sub.2).sub.m R.sup.3 is a cyano group, a formyl group, a dialkylamino group, a phenyl group, a pyridyl group, a trimethylsilyl group, a naphthyl group, an alkoxycarbonyl group, a benzoyl group, an alkylthio group, a phenylthio group, an alkylsulfonyl group or a benzyloxy group and m is 1, 2, or ##STR3## wherein R.sup.4 is a hydrogen atom or a lower alkyl group, R.sup.5 is a lower alkyl group or ##STR4## wherein X.sup.2 is a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group or a nitro group, n is 0 or 1, provided that when R.sup.5 is an alkyl group, n is 1; and R.sup.2 is a chlorine atom or a methoxy group, provided that when R.sup.1 is a hydrogen atom or a benzyl group, X is ##STR5## and R.sup.2 is a methoxy group, when R.sup.
    Type: Grant
    Filed: April 19, 1990
    Date of Patent: May 28, 1991
    Assignees: Kumiai Chemical Industry Co., Ltd., Ihara Chemical Industry Co., Ltd.
    Inventors: Nobuhide Wada, Yoshihiro Saito, Shoji Kusano, Yasufumi Toyokawa, Takeshige Miyazawa, Satoru Takahashi, Takayoshi Takehi
  • Patent number: 4969949
    Abstract: A pyrimidine derivative of the formula: ##STR1## wherein each of R.sup.1 and R.sup.2 which may be the same or different is an alkyl group, or R.sup.1 and R.sup.2 together with the adjacent carbon atom form a ring.
    Type: Grant
    Filed: March 21, 1989
    Date of Patent: November 13, 1990
    Assignees: Kumiai Chemical Industry Co., Ltd., Ihara Chemical Industry Co., Ltd.
    Inventors: Masahiro Shigematsu, Shoji Kusano, Takayoshi Takehi, Takeshige Miyazawa, Yasufumi Toyokawa
  • Patent number: 4946495
    Abstract: A 2-phenoxypyrimidine derivative having the formula: ##STR1## wherein X is a halogen atom or ##STR2## wherein X.sup.1 is a halogen atom, a lower alkyl group or a lower alkoxy group and k is 0, 1 or 2; R.sup.1 is a hydrogen atom, a benzyl group, --(CH.sub.2).sub.m R.sup.3 wherein R.sup.3 is a cyano group, a formyl group, a dialkylamino group, a phenyl group, a pyridyl group, a trimethylsilyl group, a naphthyl group, an alkoxycarbonyl group, a benzoyl group, an alkylthio group, a phenylthio group, an alkylsulfonyl group or a benzyloxy group and m is 1, 2 or 3, or ##STR3## wherein R.sup.4 is a hydrogen atom or a lower alkyl group, R.sup.5 is a lower alkyl group or ##STR4## wherein X.sup.2 is a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group or a nitro group, n is 0 or 1, provided that when R.sup.5 is an alkyl group, n is 1; and R.sup.2 is a chlorine atom or a methoxy group, provided that when R.sup.1 is a hydrogen atom or a benzyl group, X is ##STR5## and R.sup.
    Type: Grant
    Filed: April 13, 1988
    Date of Patent: August 7, 1990
    Assignees: Kumiai Chemical Industry Co., Ltd., Ihara Chemical Industry Co., Ltd.
    Inventors: Nobuhide Wada, Yoshihiro Saito, Shoji Kusano, Yasufumi Toyokawa, Takeshige Miyazawa, Satoru Takahashi, Takayoshi Takehi