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: 10870638Abstract: A novel herbicide having remarkable herbicidal activities against undesired plants is provided. A pyridazinone compound represented by the formula (I) or its salt: wherein X is —O—, —S—, —SO—, —SO2— or —N(Y)—; Q is monocyclic aryl which may be substituted by Z, monocyclic heteroaryl which may be substituted by Z or the like; Y is a hydrogen atom or alkyl; Z is halogen, alkyl or the like; R1 is alkyl, alkenyl or the like; R2 is a hydrogen atom, alkyl or the like; R3 is halogen, hydroxy or the like; R4 is a hydrogen atom, alkyl or the like; and n is an integer of from 0 to 4.Type: GrantFiled: March 29, 2017Date of Patent: December 22, 2020Assignee: ISHIHARA SANGYO KAISHA, LTD.Inventors: Toshihiko Ueki, Ryu Yamada, Hisaki Tanaka
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Publication number: 20200172517Abstract: A novel herbicide having remarkable herbicidal activities against undesired plants is provided. A pyridazinone compound represented by the formula (I) or its salt: wherein X is —O—, —S—, —SO—, —SO2— or —N(Y)—; Q is monocyclic aryl which may be substituted by Z, monocyclic heteroaryl which may be substituted by Z or the like; Y is a hydrogen atom or alkyl; Z is halogen, alkyl or the like; R1 is alkyl, alkenyl or the like; R2 is a hydrogen atom, alkyl or the like; R3 is halogen, hydroxy or the like; R4 is a hydrogen atom, alkyl or the like; and n is an integer of from 0 to 4.Type: ApplicationFiled: March 29, 2017Publication date: June 4, 2020Applicant: ISHIHARA SANGYO KAISHA, LTD.Inventors: Toshihiko UEKI, Ryu YAMADA, Hisaki TANAKA
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Patent number: 10092002Abstract: 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: GrantFiled: April 5, 2017Date of Patent: October 9, 2018Assignee: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
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Patent number: 9993001Abstract: To provide a highly active herbicidal composition to control undesired plants by synergistic herbicidal effects. The present invention provides a herbicidal composition comprising (A) metobromuron or its salt, and (B) at least one herbicidal compound selected from the group consisting of chlorpropham, S-metolachlor, flufenacet, pyroxasulfone, nicosulfuron, fluazifop-P-butyl, prometryn, ioxynil, pendimethalin, trifluralin, prosulfocarb, thiobencarb and indanofan, or its alkyl ester or its salt; and a herbicidal method of using it.Type: GrantFiled: October 14, 2015Date of Patent: June 12, 2018Assignee: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu Yamada, Hiroyuki Okamoto, Yoshifumi Saito, Takashi Terada
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Publication number: 20170332642Abstract: To provide a highly active herbicidal composition to control undesired plants by synergistic herbicidal effects. The present invention provides a herbicidal composition comprising (A) metobromuron or its salt, and (B) at least one herbicidal compound selected from the group consisting of chlorpropham, S-metolachlor, flufenacet, pyroxasulfone, nicosulfuron, fluazifop-P-butyl, prometryn, ioxynil, pendimethalin, trifluralin, prosulfocarb, thiobencarb and indanofan, or its alkyl ester or its salt; and a herbicidal method of using it.Type: ApplicationFiled: October 14, 2015Publication date: November 23, 2017Applicant: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu YAMADA, Hiroyuki OKAMOTO, Yoshifumi SAITO, Takashi TERADA
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Patent number: 9814238Abstract: To provide a high active herbicidal composition to control undesired plants represented by weeds to be controlled. A herbicidal composition comprising tiafenacil or its salt and flazasulfuron or its salt.Type: GrantFiled: October 17, 2014Date of Patent: November 14, 2017Assignee: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
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Patent number: 9775354Abstract: 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: GrantFiled: June 26, 2014Date of Patent: October 3, 2017Assignee: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu Yamada, Yoshikazu Satake
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Patent number: 9743666Abstract: 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: GrantFiled: July 7, 2016Date of Patent: August 29, 2017Assignee: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
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Publication number: 20170202221Abstract: 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: April 5, 2017Publication date: July 20, 2017Applicant: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu YAMADA, Hiroyuki OKAMOTO, Takashi TERADA
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Patent number: 9693559Abstract: 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: GrantFiled: February 26, 2016Date of Patent: July 4, 2017Assignee: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
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Patent number: 9648881Abstract: 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: GrantFiled: December 26, 2012Date of Patent: May 16, 2017Assignee: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
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Patent number: 9526246Abstract: 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: GrantFiled: June 27, 2013Date of Patent: December 27, 2016Assignee: ISHIHARA SANGYO KAISHA, LTD.Inventors: Hiroshi Kikugawa, Ryu Yamada, Mitsuru Endo, Yoshikazu Satake
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Publication number: 20160360754Abstract: 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: July 7, 2016Publication date: December 15, 2016Applicant: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu YAMADA, Hiroyuki OKAMOTO, Takashi TERADA
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Publication number: 20160270401Abstract: 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: May 31, 2016Publication date: September 22, 2016Applicant: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu YAMADA, Hiroyuki OKAMOTO, Takashi TERADA
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Publication number: 20160242417Abstract: To provide a high active herbicidal composition to control undesired plants represented by weeds to be controlled. A herbicidal composition comprising tiafenacil or its salt and flazasulfuron or its salt.Type: ApplicationFiled: October 17, 2014Publication date: August 25, 2016Applicant: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu YAMADA, Hiroyuki OKAMOTO, Takashi TERADA
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Patent number: 9420794Abstract: 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: GrantFiled: May 28, 2013Date of Patent: August 23, 2016Assignee: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
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Patent number: 9415057Abstract: 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: GrantFiled: April 6, 2012Date of Patent: August 16, 2016Assignee: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
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Patent number: 9380783Abstract: 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: GrantFiled: April 30, 2013Date of Patent: July 5, 2016Assignee: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
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Patent number: 9375013Abstract: 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: GrantFiled: February 19, 2014Date of Patent: June 28, 2016Assignee: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu Yamada, Hiroyuki Okamoto, Takashi Terada
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Publication number: 20160174561Abstract: 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: February 26, 2016Publication date: June 23, 2016Applicant: ISHIHARA SANGYO KAISHA, LTD.Inventors: Ryu YAMADA, Hiroyuki OKAMOTO, Takashi TERADA