Patents by Inventor Rikio Yamaguchi

Rikio Yamaguchi 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: 8361487
    Abstract: The present invention provides an excellent ant controller for protecting wooden materials such as trees, board fences, sleepers, etc. and structures such as shrines, temples, houses, outhouses, factories, etc. from termites, and for controlling ants doing harm to crops or humans, which contains as active ingredient thereof a hydrazine derivative represented by general formula (I) [wherein A represents one of formulas (II), (III), (IV), and (V), (wherein R4 and R5 are H, C1-C6 alkyl, etc.; X is 1 to 5 substituents selected from H, halogen and (halo) C1-C6 alkyl); R1 is H or C1-C6 alkyl; R2 and R3 are H, OH, C1-C6 alkyl, phenylcarbonyl, etc.; Y is 1 to 5 substituents selected from H, halogen, nitro and cyano; Z is halogen, cyano, C1-C6 alkyl, etc.; and W is O or S]; and a method for application of the ant controller.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: January 29, 2013
    Assignee: BASF Aktiengesellschaft
    Inventors: Kazuhiro Takagi, Yasuhiro Wada, Rikio Yamaguchi
  • Patent number: 6903237
    Abstract: Ectoparasitic insect pest controllers for animals, containing hydrazine derivatives of the general formula (I) as the active ingredient, and methods for application of the same: (I) [wherein A is (II), (III), (IV), (V) (wherein R4 and R5 are each H, C1-6 alkyl, or the like; and X is H, or one to five substituents selected from among halogeno and optionally halogenated C1-6 alkyl groups); R1 is H or C1-6 alkyl; R2 and R3 are each H, OH, C1-6 alkyl, phenylcarbonyl, or the like; Y is H, or one to five substituents selected from among halogeno, nitro, and cyano; Z is halogeno, cyano, C1-6 alkyl, or the like; and W is O or S]. The insect pest controllers exert remarkable controlling effects on parasitic insect pests harmful to domestic or pet animals, e.g. fleas, lice, ticks.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: June 7, 2005
    Assignee: Nihon Nohyaku Co., Ltd.
    Inventors: Rikio Yamaguchi, Tetsuyoshi Nishimatsu, Kazuhiro Takagi
  • Publication number: 20030199579
    Abstract: 1
    Type: Application
    Filed: May 21, 2003
    Publication date: October 23, 2003
    Inventors: Rikio Yamaguchi, Tetsuyoshi Nishimatsu, Kazuhiro Takagi
  • Patent number: 6472417
    Abstract: The present invention provides an insecticidal composition comprising, as active ingredients, (a) at least one pyrethroid compound and (b) an N-arylpyrazole compound such as 5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl)-4-trifluoromethylsulfmylpyrazole, and an insecticidal method which comprises applying the composition.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: October 29, 2002
    Assignee: Rhone-Poulenc Agrochimie
    Inventors: Hiroshi Kodama, Yasuhiro Wada, Rikio Yamaguchi
  • Patent number: 6432998
    Abstract: The present invention provides an insecticidal composition comprising, as active ingredients, (a) at least one pyrethroid compound and (b) an N-arylpyrazole compound such as 5-amino-3-cyano-1-(2,6-dichloro)-4-trifluoromethylphenyl)-4-trifluoromethylsulfinylpyrazole, and an insecticidal method which comprises applying the composition.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: August 13, 2002
    Assignee: Rhone-Poulenc Agrochimie
    Inventors: Hiroshi Kodama, Yasuhiro Wada, Rikio Yamaguchi
  • Publication number: 20010056111
    Abstract: The present invention provides an insecticidal composition comprising, as active ingredients, (a) at least one pyrethroid compound and (b) an N-arylpyrazole compound such as 5-amino-3-cyano-1-(2,6-dichloro)-4-trifluoromethylphenyl)-4-trifluoromethylsulfinylpyrazole, and an insecticidal method which comprises applying the composition.
    Type: Application
    Filed: April 6, 2001
    Publication date: December 27, 2001
    Inventors: Hiroshi Kodama, Yasuhiro Wada, Rikio Yamaguchi
  • Patent number: 6258835
    Abstract: The present invention provides an insecticidal composition comprising, as active ingredients, (a) at least one pyrethroid compound and (b) an N-aryldiazole compound such as 5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl-4-trifluoromethylsulfinylpyrazole, and an insecticidal method which comprises applying the composition.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: July 10, 2001
    Assignee: Rhone-Poulenc Agrochimie
    Inventors: Hiroshi Kodama, Yasuhiro Wada, Rikio Yamaguchi
  • Patent number: 6060497
    Abstract: The present invention provides an insecticidal composition comprising, as active ingredients, (a) at least one pyrethroid compound and (b) an N-aryldiazole compound such as 5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl-4-trifluoromethyls ulfinylpyrazole, and an insecticidal method which comprises applying the composition.
    Type: Grant
    Filed: March 16, 1999
    Date of Patent: May 9, 2000
    Assignee: Rhone-Poulenc Agrochimie
    Inventors: Hiroshi Kodama, Yasuhiro Wada, Rikio Yamaguchi
  • Patent number: 5916909
    Abstract: The present invention provides an insecticidal composition comprising, as active ingredients, (a) at least one pyrethroid compound and (b) an N-aryldiazole compound such as 5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl-4-trifluoromethyls ulfinylpyrazole, and an insecticidal method which comprises applying the composition.
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: June 29, 1999
    Assignee: Rhone-Poulenc Agrochimie
    Inventors: Hiroshi Kodama, Yasuhiro Wada, Rikio Yamaguchi
  • Patent number: 5747519
    Abstract: A termite control composition for soil treatment containing a 3-cyano-1-(substituted phenyl)pyrazole and a pyrethroid compound as effective ingredients, and a method of controlling pests such as termites using said composition. The termite control composition is improved for soil treatment as well as for the ability to prevent termites from passing through a pesticidally treated layer.
    Type: Grant
    Filed: December 11, 1996
    Date of Patent: May 5, 1998
    Assignee: Rhone-Poulenc Agrochimie
    Inventors: Hiroshi Kodama, Yasuhiro Wada, Rikio Yamaguchi