Patents by Inventor Tatsuhiko Tsuruta

Tatsuhiko Tsuruta 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: 8575067
    Abstract: A herbicidal composition comprising a herbicidal sulfonylurea compound or its salt, and an alkoxylated glyceride. A method for controlling undesired plants or inhibiting their growth, which comprises applying a herbicidally effective amount of the herbicidal composition to the undesired plants or to a place where they grow. A method for enhancing the herbicidal effect of a herbicidal sulfonylurea compound or its salt by means of an alkoxylated glyceride.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: November 5, 2013
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Hiroshi Yoshii, Yoshiaki Ishihara, Ryu Yamada, Tatsuhiko Tsuruta
  • Patent number: 8518860
    Abstract: A herbicidal suspension comprising (1) a sulfonylurea compound or its salt as a herbicidal component, (2) at least one surfactant selected from the group consisting of an alkoxylated sorbitol fatty acid ester and an alkoxylated sorbitan fatty acid ester, and (3) a water-immiscible diluent. A method for controlling undesired plants or inhibiting their growth, which comprises applying a herbicidally effective amount of the herbicidal suspension to the undesired plants or to a place where they grow.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: August 27, 2013
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Hiroshi Yoshii, Yoshiaki Ishihara, Ryu Yamada, Tatsuhiko Tsuruta
  • Patent number: 8501667
    Abstract: Not so many reports on the practical use of herbicidal sulfonylurea compounds have been made since they easily decompose in water or a process for production of their suspensions is complicated. Therefore, it is desired to prepare a water-based herbicidal suspension in which a herbicidal sulfonylurea compound will not decompose in water and excellent suspensibility of which is maintained, without complicated process. A water-based herbicidal suspension comprising (1) a herbicidal sulfonylurea compound (excluding 1-[3-[(4,6-dimethoxypyrimidin-2-ylcarbamoyl)sulfamoyl]-2-pyridyl]-2-fluoropropyl methoxyacetate and N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-2-(2-fluoro-1-hydroxypropyl)-3-pyridinesulfonamide) or its salt, (2) an inorganic salt, (3) at least one sulfonate selected from the group consisting of an aryl sulfonate, an alkylaryl sulfonate and their formaldehyde condensates and (4) water.
    Type: Grant
    Filed: July 24, 2006
    Date of Patent: August 6, 2013
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Yoshiaki Ishihara, Tatsuhiko Tsuruta
  • Patent number: 7981839
    Abstract: A herbicidal suspension comprising (1) a sulfonylurea compound or its salt as a herbicidal component, (2) at least one surfactant selected from the group consisting of an alkoxylated sorbitol fatty acid ester and an alkoxylated sorbitan fatty acid ester, and (3) a water-immiscible diluent. A method for controlling undesired plants or inhibiting their growth, which comprises applying a herbicidally effective amount of the herbicidal suspension to the undesired plants or to a place where they grow.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: July 19, 2011
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Hiroshi Yoshii, Yoshiaki Ishihara, Ryu Yamada, Tatsuhiko Tsuruta
  • Publication number: 20110166024
    Abstract: A herbicidal suspension comprising (1) a sulfonylurea compound or its salt as a herbicidal component, (2) at least one surfactant selected from the group consisting of an alkoxylated sorbitol fatty acid ester and an alkoxylated sorbitan fatty acid ester, and (3) a water-immiscible diluent. A method for controlling undesired plants or inhibiting their growth, which comprises applying a herbicidally effective amount of the herbicidal suspension to the undesired plants or to a place where they grow.
    Type: Application
    Filed: March 16, 2011
    Publication date: July 7, 2011
    Applicant: ISHIHARA SANGYO KAISHA, LTD.
    Inventors: Hiroshi Yoshii, Yoshiaki Ishihara, Ryu Yamada, Tatsuhiko Tsuruta
  • Publication number: 20100093539
    Abstract: Not so many reports on the practical use of herbicidal sulfonylurea compounds have been made since they easily decompose in water or a process for production of their suspensions is complicated. Therefore, it is desired to prepare a water-based herbicidal suspension in which a herbicidal sulfonylurea compound will not decompose in water and excellent suspensibility of which is maintained, without complicated process. A water-based herbicidal suspension comprising (1) a herbicidal sulfonylurea compound (excluding 1-[3-[(4,6-dimethoxypyrimidin-2-ylcarbamoyl)sulfamoyl]-2-pyridyl]-2-fluoropropyl methoxyacetate and N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-2-(2-fluoro-1-hydroxypropyl)-3-pyridinesulfonamide) or its salt, (2) an inorganic salt, (3) at least one sulfonate selected from the group consisting of an aryl sulfonate, an alkylaryl sulfonate and their formaldehyde condensates and (4) water.
    Type: Application
    Filed: July 24, 2006
    Publication date: April 15, 2010
    Applicant: Ishihara Sangyo Kaisha, LTD.
    Inventors: Yoshiaki Ishihara, Tatsuhiko Tsuruta
  • Publication number: 20090029862
    Abstract: A herbicidal suspension comprising (1) a sulfonylurea compound or its salt as a herbicidal component, (2) at least one surfactant selected from the group consisting of an alkoxylated sorbitol fatty acid ester and an alkoxylated sorbitan fatty acid ester, and (3) a water-immiscible diluent. A method for controlling undesired plants or inhibiting their growth, which comprises applying a herbicidally effective amount of the herbicidal suspension to the undesired plants or to a place where they grow.
    Type: Application
    Filed: February 23, 2006
    Publication date: January 29, 2009
    Applicant: ISHIHARA SANGYO KAISHA, LTD.
    Inventors: Hiroshi Yoshii, Yoshiaki Ishihara, Ryu Yamada, Tatsuhiko Tsuruta
  • Publication number: 20060154824
    Abstract: A herbicidal composition comprising a herbicidal sulfonylurea compound or its salt, and an alkoxylated glyceride. A method for controlling undesired plants or inhibiting their growth, which comprises applying a herbicidally effective amount of the herbicidal composition to the undesired plants or to a place where they grow. A method for enhancing the herbicidal effect of a herbicidal sulfonylurea compound or its salt by means of an alkoxylated glyceride.
    Type: Application
    Filed: June 30, 2004
    Publication date: July 13, 2006
    Applicant: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Hiroshi Yoshii, Yoshiaki Ishihara, Ryu Yamada, Tatsuhiko Tsuruta