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).
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Patent number: 9370185Abstract: 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: GrantFiled: June 22, 2012Date of Patent: June 21, 2016Assignee: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
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Patent number: 9339038Abstract: 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: GrantFiled: March 5, 2013Date of Patent: May 17, 2016Assignee: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
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Publication number: 20160100580Abstract: 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: ApplicationFiled: June 26, 2014Publication date: April 14, 2016Applicant: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu YAMADA, Yoshikazu SATAKE
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Publication number: 20160000085Abstract: 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: ApplicationFiled: February 19, 2014Publication date: January 7, 2016Applicant: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu YAMADA, Hiroyuki OKAMOTO, Takashi TERADA
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Patent number: 9107404Abstract: 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: GrantFiled: March 2, 2011Date of Patent: August 18, 2015Assignee: Ishihara Sangyo Kaisha, Ltd.Inventors: Hiroshi Yoshii, Tomoaki Kezuka, Ryu Yamada, Ema Mitsuno, Takashi Terada
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Publication number: 20150216165Abstract: 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: ApplicationFiled: June 27, 2013Publication date: August 6, 2015Applicant: ISHIHARA SANGYO KAISHA, LTD.Inventors: Hiroshi Kikugawa, Ryu Yamada, Mitsuru Endo, Yoshikazu Satake
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Patent number: 9072297Abstract: 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: GrantFiled: December 13, 2013Date of Patent: July 7, 2015Assignee: ISHIHARA SANGYO KAISHA, LTD.Inventors: Hiroshi Kikugawa, Tomoaki Kezuka, Ryu Yamada, Takashi Terada
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Publication number: 20150133300Abstract: 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: ApplicationFiled: May 28, 2013Publication date: May 14, 2015Applicant: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
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Publication number: 20150087515Abstract: 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: ApplicationFiled: April 30, 2013Publication date: March 26, 2015Applicant: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
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Publication number: 20150018214Abstract: 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: ApplicationFiled: March 5, 2013Publication date: January 15, 2015Applicant: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
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Publication number: 20150011391Abstract: 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: ApplicationFiled: December 26, 2012Publication date: January 8, 2015Applicant: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
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Patent number: 8921271Abstract: 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: GrantFiled: April 6, 2012Date of Patent: December 30, 2014Assignee: Ishihara Sangyo Kaisha, Ltd.Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
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Patent number: 8921272Abstract: 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: GrantFiled: January 19, 2012Date of Patent: December 30, 2014Assignee: Ishihara Sangyo Kaisha, Ltd.Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
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Publication number: 20140228217Abstract: 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: ApplicationFiled: June 22, 2012Publication date: August 14, 2014Applicant: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
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Patent number: 8778839Abstract: 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: GrantFiled: March 13, 2007Date of Patent: July 15, 2014Assignee: Ishihara Sangyo Kaisha, Ltd.Inventors: Hiroshi Yoshii, Ryu Yamada
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Publication number: 20140128263Abstract: 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: ApplicationFiled: April 6, 2012Publication date: May 8, 2014Applicant: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
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Publication number: 20140121108Abstract: 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: ApplicationFiled: April 6, 2012Publication date: May 1, 2014Applicant: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
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Publication number: 20140106971Abstract: 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: ApplicationFiled: December 13, 2013Publication date: April 17, 2014Applicant: ISHIHARA SANGYO KAISHA, LTD.Inventors: Hiroshi KIKUGAWA, Tomoaki KEZUKA, Ryu YAMADA, Takashi TERADA
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Patent number: 8673815Abstract: 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: GrantFiled: November 24, 2011Date of Patent: March 18, 2014Assignee: Ishihara Sangyo Kaisha, Ltd.Inventors: Hiroshi Kikugawa, Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
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Patent number: 8633135Abstract: 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: GrantFiled: June 8, 2011Date of Patent: January 21, 2014Assignee: Ishihara Sangyo Kaisha, Ltd.Inventors: Hiroshi Kikugawa, Tomoaki Kezuka, Ryu Yamada, Takashi Terada