Patents by Inventor Ryu Yamada

Ryu Yamada 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: 9370185
    Abstract: At present, a large number of herbicidal compositions have been developed and used. However, weeds to be controlled include a lot of kinds, and the emergence thereof extends over a long period of time. Therefore, the appearance of a herbicidal composition having a broad weed spectrum and having a high activity and a long residual effect is desired. The present invention relates to a synergistic herbicidal composition comprising (A) at least one member selected from the group consisting of flazasulfuron, nicosulfuron, and their salts and (B) pyroxasulfone or its salt. According to the synergistic herbicidal composition of the present invention, a herbicidal composition having a broad weed spectrum and having a high activity and a long residual effect can be provided.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: June 21, 2016
    Assignee: ISHIHARA SANGYO KAISHA, LTD.
    Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
  • Patent number: 9339038
    Abstract: To provide a high active herbicidal composition having a broad herbicidal spectrum. A herbicidal composition comprising synergistically effective amounts of (A) pyridate or its salt and (B) at least one sulfonylurea compound selected from the group consisting of flazasuifuron, nicosulfuron, trifioxysulfuron, chlorimuron and its alkyl ester, halosulfuron and its alkyl ester, and their salts.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: May 17, 2016
    Assignee: ISHIHARA SANGYO KAISHA, LTD.
    Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
  • Publication number: 20160100580
    Abstract: To provide a herbicidal composition which has a high herbicidal effect against undesired plants while stably maintaining the safety for useful plants, independently of various conditions such as weather conditions, soil conditions, varieties of the crop plants, and the timing for the application of the herbicide. A herbicidal composition comprising (1) 1-(1-ethyl-4-(3-(2-methoxyethoxy)-2-methyl-4-(methylsulfonyl)benzoyl)-1H-pyrazol-5-yloxy)ethyl methyl carbonate or its salt and (2) at least one compound selected from the group consisting of fenchlorazole-ethyl, isoxadifen-ethyl, mefenpyr-diethyl, cloquintocet-mexyl and cyprosulfamide.
    Type: Application
    Filed: June 26, 2014
    Publication date: April 14, 2016
    Applicant: ISHIHARA SANGYO KAISHA, LTD.
    Inventors: Ryu YAMADA, Yoshikazu SATAKE
  • Publication number: 20160000085
    Abstract: At present, many herbicidal compositions have been developed and used, but they are not necessarily sufficient to control undesired plants such as weeds to be controlled in some cases, and a herbicidal composition having high activity has been desired. A herbicidal composition comprising flazasulfuron or its salt, and at least one herbicidal compound selected from the group consisting of imazapic, hexazinone, mesotrione and their salts, and a method for controlling undesired plants using it.
    Type: Application
    Filed: February 19, 2014
    Publication date: January 7, 2016
    Applicant: ISHIHARA SANGYO KAISHA, LTD.
    Inventors: Ryu YAMADA, Hiroyuki OKAMOTO, Takashi TERADA
  • Patent number: 9107404
    Abstract: To provide a method for managing a lawn at a site, such as a golf course, where turfgrass less sensitive to herbicides and turfgrass highly sensitive to herbicides are used in combination, without causing undesirable effects on the highly sensitive turfgrass. A herbicidal compound and a silicone surfactant are applied to a site where turfgrass less sensitive to the herbicidal compound is planted, thereby to reduce undesirable effects on nearby turfgrass highly sensitive to the herbicidal compound.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: August 18, 2015
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Hiroshi Yoshii, Tomoaki Kezuka, Ryu Yamada, Ema Mitsuno, Takashi Terada
  • 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
  • Publication number: 20150133300
    Abstract: To provide a high active herbicidal composition having a broader herbicidal spectrum against a wide variety of weeds to be controlled. A herbicidal composition comprising (a) nicosulfuron or its salt, (b) dimethenamid-P or its salt and (c) topramezone or its salt. This herbicidal composition has a wide herbicidal spectrum and has high activity.
    Type: Application
    Filed: May 28, 2013
    Publication date: May 14, 2015
    Applicant: ISHIHARA SANGYO KAISHA, LTD.
    Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
  • Publication number: 20150087515
    Abstract: To provide a high active herbicidal composition having a broad herbicidal spectrum. A herbicidal composition comprising (a) nicosulfuron or its salt, (b) prosulfuron or its salt and (c) at least one herbicidal compound selected from the group consisting of mesotrione, bicyclopyrone, dicamba, dicamba ester, bromoxynil, bromoxynil ester and their salts.
    Type: Application
    Filed: April 30, 2013
    Publication date: March 26, 2015
    Applicant: ISHIHARA SANGYO KAISHA, LTD.
    Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
  • Publication number: 20150018214
    Abstract: To provide a high active herbicidal composition having a broad herbicidal spectrum. A herbicidal composition comprising synergistically effective amounts of (A) pyridate or its salt and (B) at least one sulfonylurea compound selected from the group consisting of flazasuifuron, nicosulfuron, trifioxysulfuron, chlorimuron and its alkyl ester, halosulfuron and its alkyl ester, and their salts.
    Type: Application
    Filed: March 5, 2013
    Publication date: January 15, 2015
    Applicant: ISHIHARA SANGYO KAISHA, LTD.
    Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
  • Publication number: 20150011391
    Abstract: At present, various herbicidal compositions have been developed and use, but there are a variety of types of weeds to be controlled, and their development lasts for a long period of time. Thus, a herbicidal composition having a broad herbicidal spectrum, having high activity and having a long-lasting effect has been desired. The present invention relates to a herbicidal composition comprising (a) nicosulfuron or its salt and (b) S-metolachlor or its salt. According to the present invention, a herbicidal composition having a broad herbicidal spectrum, having high activity and having a long-lasting effect can be provided.
    Type: Application
    Filed: December 26, 2012
    Publication date: January 8, 2015
    Applicant: ISHIHARA SANGYO KAISHA, LTD.
    Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
  • Patent number: 8921271
    Abstract: Many herbicidal compositions have been developed and are presently used. However, weeds to be controlled are various in types and their emergence extends over a long period. Accordingly, it is desired to develop a herbicidal composition which has a broader herbicidal spectrum, a high activity and a long-lasting effect. The present invention provides a herbicidal composition comprising, as active ingredients, (a) flazasulfuron or its salt and (b) metribuzin or its salt.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: December 30, 2014
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
  • Patent number: 8921272
    Abstract: Many herbicidal compositions have been developed and are presently used. However, weeds to be controlled are various in types and their emergence extends over a long period. Accordingly, it is desired to develop a herbicidal composition which has a broad herbicidal spectrum, a high activity and a long lasting effect. The present invention provides a herbicidal composition comprising, as active ingredients, (a) flazasulfuron or its salt, and (b) amicarbazone or its salt.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: December 30, 2014
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
  • Publication number: 20140228217
    Abstract: At present, a large number of herbicidal compositions have been developed and used. However, weeds to be controlled include a lot of kinds, and the emergence thereof extends over a long period of time. Therefore, the appearance of a herbicidal composition having a broad weed spectrum and having a high activity and a long residual effect is desired. The present invention relates to a synergistic herbicidal composition comprising (A) at least one member selected from the group consisting of flazasulfuron, nicosulfuron, and their salts and (B) pyroxasulfone or its salt. According to the synergistic herbicidal composition of the present invention, a herbicidal composition having a broad weed spectrum and having a high activity and a long residual effect can be provided.
    Type: Application
    Filed: June 22, 2012
    Publication date: August 14, 2014
    Applicant: ISHIHARA SANGYO KAISHA, LTD.
    Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
  • Patent number: 8778839
    Abstract: Improvement of the effect of a herbicidally active ingredient and reduction of its dosage are required so as to reduce the environment load on a site where the herbicide is applied or the periphery thereof, more than ever. A herbicidal composition comprising (1) a herbicidal sulfonylurea compound or its salt and (2) a polyoxyalkylene alkyl ether phosphate or its salt. A method for controlling undesired plants or inhibiting their growth, by applying such a herbicidal composition.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: July 15, 2014
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Hiroshi Yoshii, Ryu Yamada
  • Publication number: 20140128263
    Abstract: Many herbicidal compositions have been developed and are presently used. However, weeds to be controlled are various in types and their emergence extends over a long period. Accordingly, it is desired to develop a herbicidal composition which has a broader herbicidal spectrum, a high activity and a long-lasting effect. The present invention provides a herbicidal composition comprising, as active ingredients, (a) flazasulfuron or its salt and (b) metribuzin or its salt.
    Type: Application
    Filed: April 6, 2012
    Publication date: May 8, 2014
    Applicant: ISHIHARA SANGYO KAISHA, LTD.
    Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
  • Publication number: 20140121108
    Abstract: Many herbicidal compositions have been developed and are presently used. However, weeds to be controlled are various in types and their emergence extends over a long period. Accordingly, it is desired to develop a herbicidal composition which has a broad herbicidal spectrum, a high activity and a long-lasting effect. The present invention provides a herbicidal composition comprising (A) flazasulfuron or its salt and (B) at least one protoporphyrinogen oxidase inhibitor selected from the group consisting of a phenylpyrazole compound, a triazolinone compound, a N-phenylphthalimide compound, a pyrimidindione compound, an oxadiazole compound, an oxazolidinedione compound, a thiadiazole compound, pyraclonil, profluazol, flufenpyr-ethyl and their salts. According to the present invention, a herbicidal composition which has a broad herbicidal spectrum, a high activity and a long-lasting effect can be provided.
    Type: Application
    Filed: April 6, 2012
    Publication date: May 1, 2014
    Applicant: ISHIHARA SANGYO KAISHA, LTD.
    Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
  • 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