Patents by Inventor Hiroshi Kikugawa

Hiroshi Kikugawa 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: 9526246
    Abstract: In order to reduce the environmental load on an area where a herbicide is applied or a surrounding area thereof more than ever, it has been required to improve activity of a herbicidal active ingredient and to reduce its dose as far as possible. A herbicidal composition comprising (1) a benzoylpyrazole compound represented by the formula (I) or its salt: wherein each of Q, R1, R2, R3, R4, R5, R6 and A is as defined in the specification, and (2) at least one compound selected from the group consisting of a polyoxyalkylene sorbitan fatty acid ester, a polyoxyalkylene fatty acid ester, a polyoxyalkylene styryl aryl ether, a polyoxyalkylene styryl aryl ether condensate and a polyoxyalkylene alkyl ether sulfate.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: December 27, 2016
    Assignee: ISHIHARA SANGYO KAISHA, LTD.
    Inventors: Hiroshi Kikugawa, Ryu Yamada, Mitsuru Endo, Yoshikazu Satake
  • Publication number: 20150216165
    Abstract: In order to reduce the environmental load on an area where a herbicide is applied or a surrounding area thereof more than ever, it has been required to improve activity of a herbicidal active ingredient and to reduce its dose as far as possible. A herbicidal composition comprising (1) a benzoylpyrazole compound represented by the formula (I) or its salt: wherein each of Q, R1, R2, R3, R4, R5, R6 and A is as defined in the specification, and (2) at least one compound selected from the group consisting of a polyoxyalkylene sorbitan fatty acid ester, a polyoxyalkylene fatty acid ester, a polyoxyalkylene styryl aryl ether, a polyoxyalkylene styryl aryl ether condensate and a polyoxyalkylene alkyl ether sulfate.
    Type: Application
    Filed: June 27, 2013
    Publication date: August 6, 2015
    Applicant: ISHIHARA SANGYO KAISHA, LTD.
    Inventors: Hiroshi Kikugawa, Ryu Yamada, Mitsuru Endo, Yoshikazu Satake
  • Patent number: 9072297
    Abstract: At present, many herbicidal compositions have been developed and used, but there are a variety of types of weeds to be controlled, and their development lasts for a long period of time. Thus, a high active and long-residual herbicidal composition having a broad herbicidal spectrum has been desired. The present invention provides a synergistic herbicidal composition comprising (A) flazasulfuron or its salt and (B) at least one urea compound selected from the group consisting of tebuthiuron, diuron and metobromuron or its salt. According to the synergistic herbicidal composition of the present invention, a high active and long-residual herbicidal composition having a broad-spectrum can be provided.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: July 7, 2015
    Assignee: ISHIHARA SANGYO KAISHA, LTD.
    Inventors: Hiroshi Kikugawa, Tomoaki Kezuka, Ryu Yamada, Takashi Terada
  • Patent number: 8846571
    Abstract: [OBJECT] To provide a novel pesticide. [MEANS OF ACCOMPLISHING THE OBJECT] The present invention provides a herbicidal composition which comprises as active ingredients (a) a herbicidal benzoylpyrazole compound represented by the formula (I) or its salt: wherein R1 is alkyl or cycloalkyl, R2 is a hydrogen atom or alkyl, R3 is alkyl, R4 is alkyl, haloalkyl or the like, R5 is a hydrogen atom, alkyl or the like, R6 is haloalkyl, halogen or the like, and A is alkylene substituted by alkyl, and (b) other herbicidal compound.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: September 30, 2014
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Hiroshi Kikugawa, Souichiro Nagayama, Makiko Sano
  • Publication number: 20140106971
    Abstract: At present, many herbicidal compositions have been developed and used, but there are a variety of types of weeds to be controlled, and their development lasts for a long period of time. Thus, a high active and long-residual herbicidal composition having a broad herbicidal spectrum has been desired. The present invention provides a synergistic herbicidal composition comprising (A) flazasulfuron or its salt and (B) at least one urea compound selected from the group consisting of tebuthiuron, diuron and metobromuron or its salt. According to the synergistic herbicidal composition of the present invention, a high active and long-residual herbicidal composition having a broad-spectrum can be provided.
    Type: Application
    Filed: December 13, 2013
    Publication date: April 17, 2014
    Applicant: ISHIHARA SANGYO KAISHA, LTD.
    Inventors: Hiroshi KIKUGAWA, Tomoaki KEZUKA, Ryu YAMADA, Takashi TERADA
  • Patent number: 8673815
    Abstract: At present, various herbicidal compositions have been developed and used, but they are not necessarily sufficient to control undesired plants such as weeds to be controlled, and a highly active herbicidal composition has been desired. A herbicidal composition comprising 1-(4,6-dimethoxypyrimidin-2-yl)-3-(3-trifluoromethyl-2-pyridylsulfonyl) urea or its salt and 2-(4,6-dimethoxypyrimidin-2-ylcarbamoylsulfamoyl)-N,N-dimethylnicotinamide or its salt, and a method for controlling undesired plants using it.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: March 18, 2014
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Hiroshi Kikugawa, Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
  • Patent number: 8633135
    Abstract: At present, many herbicidal compositions have been developed and used, but there are a variety of types of weeds to be controlled, and their development lasts for a long period of time. Thus, a high active and long-residual herbicidal composition having a broad herbicidal spectrum has been desired. The present invention provides a synergistic herbicidal composition comprising (A) flazasulfuron or its salt and (B) at least one urea compound selected from the group consisting of tebuthiuron, diuron and metobromuron or its salt. According to the synergistic herbicidal composition of the present invention, a high active and long-residual herbicidal composition having a broad-spectrum can be provided.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: January 21, 2014
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Hiroshi Kikugawa, Tomoaki Kezuka, Ryu Yamada, Takashi Terada
  • Publication number: 20130338004
    Abstract: [OBJECT] To provide a novel pesticide. [MEANS OF ACCOMPLISHING THE OBJECT] The present invention provides a herbicidal composition which comprises as active ingredients (a) a herbicidal benzoylpyrazole compound represented by the formula (I) or its salt: wherein R1 is alkyl or cycloalkyl, R2 is a hydrogen atom or alkyl, R3 is alkyl, R4 is alkyl, haloalkyl or the like, R5 is a hydrogen atom, alkyl or the like, R6 is haloalkyl, halogen or the like, and A is alkylene substituted by alkyl, and (b) other herbicidal compound.
    Type: Application
    Filed: June 5, 2013
    Publication date: December 19, 2013
    Inventors: Hiroshi KIKUGAWA, Souichiro NAGAYAMA, Makiko SANO
  • Patent number: 8609591
    Abstract: Many herbicidal compositions have been developed and used, but there are many types of weeds to be controlled, and their development lasts for a long period of time. Accordingly, it has been desired to develop a herbicidal composition having a wider herbicidal spectrum and having a highly active and long-lasting herbicidal activity. The present invention provides a herbicidal composition which comprises as active ingredients (a) at least one herbicidal compound selected from the group consisting of a benzoylpyrazole compound represented by the formula (I): (wherein each of R1, R2, R3, R4 and R6 is alky, and R5 is alkoxyalkoxy), sulcotrione and topramezone, and (b) amicarbazone.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: December 17, 2013
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Hiroshi Kikugawa, Yoshikazu Satake
  • Publication number: 20130260997
    Abstract: At present, various herbicidal compositions have been developed and used, but they are not necessarily sufficient to control undesired plants such as weeds to be controlled, and a highly active herbicidal composition has been desired. A herbicidal composition comprising 1-(4,6-dimethoxypyrimidin-2-yl)-3-(3-trifluoromethyl-2-pyridylsulfonyl) urea or its salt and 2-(4,6-dimethoxypyrimidin-2-ylcarbamoylsulfamoyl)-N,N-dimethylnicotinamide or its salt, and a method for controlling undesired plants using it.
    Type: Application
    Filed: November 24, 2011
    Publication date: October 3, 2013
    Applicant: ISHIHARA SANGYO KAISHA, LTD.
    Inventors: Hiroshi Kikugawa, Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
  • Publication number: 20130210628
    Abstract: Many herbicidal compositions have been developed and used, but there are many types of weeds to be controlled, and their development lasts for a long period of time. Accordingly, it has been desired to develop a herbicidal composition having a wider herbicidal spectrum and having a highly active and long-lasting herbicidal activity. The present invention provides a herbicidal composition which comprises as active ingredients (a) at least one herbicidal compound selected from the group consisting of a benzoylpyrazole compound represented by the formula (I): (wherein each of R1, R2, R3, R4 and R6 is alky, and R5 is alkoxyalkoxy), sulcotrione and topramezone, and (b) amicarbazone.
    Type: Application
    Filed: October 18, 2011
    Publication date: August 15, 2013
    Applicant: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Hiroshi Kikugawa, Yoshikazu Satake
  • Patent number: 8492310
    Abstract: Many herbicidal compositions have been developed and used, but there are many types of weeds to be controlled, and their development lasts for a long period of time. Accordingly, it has been desired to develop a herbicidal composition having a wider herbicidal spectrum and having a highly active and long-lasting herbicidal activity. The present invention provides a herbicidal composition which comprises as active ingredients (a) a herbicidal benzoylpyrazole compound represented by the formula (I) or its salt: wherein R1 is alkyl or cycloalkyl, R2 is a hydrogen atom or alkyl, R3 is alkyl, R4 is alkyl, haloalkyl or the like, R5 is a hydrogen atom, alkyl or the like, R6 is haloalkyl, halogen or the like, and A is alkylene substituted by alkyl, and (b) other herbicidal compound.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: July 23, 2013
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Hiroshi Kikugawa, Souichiro Nagayama, Makiko Sano
  • Patent number: 8466089
    Abstract: The present invention provides a novel herbicide showing excellent herbicidal effects, which has a wide application range including agricultural fields and non-agricultural fields and various application methods including soil treatment and foliage treatment. A pyrazole compound represented by the formula (I) or its salt: wherein R1 is alkyl, R2 is a hydrogen atom or alkyl, R3 is alkyl, R4 is alkyl, R5 is alkyl substituted by one alkoxy, alkoxy substituted by one alkoxy, or alkoxycarbonyl, R6 is alkylsulfonyl, A is alkylene substituted by at least one alkyl; a process for its production; a herbicide containing it as an active ingredient; and a method for controlling undesired plants or inhibiting their growth, which comprises applying a herbicidally effective amount thereof to the undesired plants or to a place where they grow.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: June 18, 2013
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Masamitsu Tsukamoto, Hiroshi Kikugawa, Souichiro Nagayama, Tatsuya Okita, Hiroshi Hata
  • Patent number: 8466088
    Abstract: Provided is an herbicidal composition which can be applied at a low dose as compared with individual application, and thus is effective to reduce the environmental load on a place where the composition is applied or a periphery thereof, of which the herbicidal spectrum is enlarged, and of which the herbicidal effects last over a long period of time. The herbicidal composition has as active ingredients (a) a herbicidal benzoylpyrazole compound represented by the formula (I) or its salt: wherein Q is —C(O)SR3 or a hydrogen atom, R1 is alkyl or cycloalkyl, R2 is a hydrogen atom or alkyl, R3 is alkyl, cycloalkyl or the like, R4 is alkyl, haloalkyl or the like, R5 is a hydrogen atom, alkyl or the like, R6 is haloalkyl, halogen or the like, and (b) a further herbicidal compound.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: June 18, 2013
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Hiroshi Shimoharada, Masamitsu Tsukamoto, Masahiko Ikeguchi, Hiroshi Kikugawa, Souichiro Nagayama, Makiko Sano, Yoshinori Kitahara, Hidemasa Kominami, Tatsuya Okita
  • Patent number: 8435928
    Abstract: To provide a herbicidal composition and a method for its application, whereby the effect of a herbicidally active ingredient is improved to reduce the environmental load on a site where the herbicide is applied or the periphery thereof, more than ever, and its dose can be reduced. A herbicidal composition comprising (1) a compound represented by the formula (I) or its salt: where T and Z are as defined in the specification, and (2) a polyoxyalkylene alkyl ether phosphate or its salt. A method for controlling undesired plants or inhibiting their growth, by applying the herbicidal composition.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: May 7, 2013
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Hiroshi Kikugawa, Souichiro Nagayama, Makiko Sano
  • Publication number: 20130085065
    Abstract: At present, many herbicidal compositions have been developed and used, but there are a variety of types of weeds to be controlled, and their development lasts for a long period of time. Thus, a high active and long-residual herbicidal composition having a broad herbicidal spectrum has been desired. The present invention provides a synergistic herbicidal composition comprising (A) flazasulfuron or its salt and (B) at least one urea compound selected from the group consisting of tebuthiuron, diuron and metobromuron or its salt. According to the synergistic herbicidal composition of the present invention, a high active and long-residual herbicidal composition having a broad-spectrum can be provided.
    Type: Application
    Filed: June 8, 2011
    Publication date: April 4, 2013
    Applicant: ISHIHARA SANGYO KAISHA, LTD.
    Inventors: Hiroshi Kikugawa, Tomoaki Kezuka, Ryu Yamada, Takashi Terada
  • Publication number: 20120198764
    Abstract: To provide a method for reducing phytotoxicity to turfgrass due to flazasulfuron, which is not expensive but easily available and simple in the field of horticulture/agriculture. Phytotoxicity to turfgrass due to flazasulfuron is reduced by using a pigment containing metal ions or a colorant comprising the pigment containing metal ions, particularly by using a phthalocyanine metal complex or a cyano-bridged metal complex.
    Type: Application
    Filed: October 13, 2010
    Publication date: August 9, 2012
    Applicant: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Hiroshi Yoshii, Tatsumi Nakamura, Hiroshi Kikugawa, Tomoaki Kezuka, Ryu Yamada, Ema Mitsuno
  • Patent number: 8119569
    Abstract: The present invention provides a novel herbicide showing excellent herbicidal effects, which has a wide application range including agricultural fields and non-agricultural fields and various application methods including soil treatment and foliage treatment. A benzoylpyrazole compound represented by the formula (I) or its salt: wherein R1 is alkyl, R2 is a hydrogen atom or alkyl, R3 is alkyl, R4 is alkyl or halogen, R5 is alkyl substituted by one Y1, haloalkoxy, alkoxy substituted by one Y2, or alkoxycarbonyl, R6 is alkylsulfonyl, A is alkylene substituted by at least one alkyl, Y1 is alkoxy or haloalkoxy, and Y2 is alkoxy; a process for its production; a herbicide containing it as an active ingredient; and a method for controlling undesired plants or inhibiting their growth, which comprises applying a herbicidally effective amount thereof to the undesired plants or to a place where they grow.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: February 21, 2012
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Terumasa Komyoji, Masamitsu Tsukamoto, Hiroshi Kikugawa, Hiroshi Hata
  • Publication number: 20110282070
    Abstract: A benzoylpyrazole compound represented by the formula (I) or its salt: wherein R1 is alkyl or cycloalkyl, R2 is a hydrogen atom or alkyl, R3 is alkyl; cycloalkyl; haloalkyl; alkoxyalkyl; alkoxycarbonylalkyl; alkenyl; or arylalkyl which may be substituted by R8, R4 is alkyl; haloalkyl; alkoxy; halogen; nitro; cyano; alkylthio; alkylsulfinyl; or alkylsulfonyl, R5 is a hydrogen atom; alkyl; alkenyl; alkynyl; halogen; cyano; cyanoalkyl; cyanoalkeny; haloalkyl; alkoxyalkyl; haloalkoxyalkyl; amino(thiocarbonyl)alkyl which may be substituted by at least one substituent selected from alkyl, cyano, is cyanoalkyl, (alkylthio)carbonylalkyl, alkyl(thiocarbonyl)alkyl, —C(O)OR7 and —C(O)SR7; thiocyanatoalkyl; alkoxy; alkenyloxy; alkynyloxy; haloalkoxy; alkoxyalkoxy; haloalkoxyalkoxy; alkoxyhaloalkoxy; haloalkoxyhaloalkoxy; alkoxyalkoxyalkyl; alkylthio; alkoxyalkylthio; haloalkoxyalkylthio; alkoxyhaloalkylthio; haloalkoxyhaloalkylthio; alkylthioalkylthio; haloalkylthioalkylthio; alkylthiohaloalkylthio; haloalkylthiohalo
    Type: Application
    Filed: July 21, 2011
    Publication date: November 17, 2011
    Applicant: ISHIHARA SANGYO KAISHA, LTD.
    Inventors: Hiroshi SHIMOHARADA, Masamitsu Tsukamoto, Masahiko Ikeguchi, Hiroshi Kikugawa, Makiko Sano, Yoshinori Kitahara, Hidemasa Kominami, Tatsuya Okita
  • Publication number: 20110263427
    Abstract: Many herbicidal compositions have been developed and used, but there are many types of weeds to be controlled, and their development lasts for a long period of time. Accordingly, it has been desired to develop a herbicidal composition having a wider herbicidal spectrum and having a highly active and long-lasting herbicidal activity. The present invention provides a herbicidal composition which comprises as active ingredients (a) a herbicidal benzoylpyrazole compound represented by the formula (I) or its salt: wherein R1 is alkyl or cycloalkyl, R2 is a hydrogen atom or alkyl, R3 is alkyl, R4 is alkyl, haloalkyl or the like, R5 is a hydrogen atom, alkyl or the like, R6 is haloalkyl, halogen or the like, and A is alkylene substituted by alkyl, and (b) other herbicidal compound.
    Type: Application
    Filed: December 10, 2009
    Publication date: October 27, 2011
    Applicant: ISHIHARA SANGYO KAISHA, LTD
    Inventors: Hiroshi Kikugawa, Souichiro Nagayama, Makiko Sano