Patents by Inventor Seishi Ito
Seishi Ito 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: 6969697Abstract: The invention relates to novel substituted benzoylcyclohexenones of the formula (I), in which n, A, R1, R2, R3, R4, Y and Z are each as defined in the description, and also to processes for their preparation and to their use as herbicides.Type: GrantFiled: March 1, 2001Date of Patent: November 29, 2005Assignees: Bayer Aktiengesellschaft, Nihon Bayer Agrochem K. K.Inventors: Klaus-Helmut Müller, Hans-Georg Schwarz, Stefan Herrmann, Dorothee Hoischen, Stefan Lehr, Otto Schallner, Mark Wilhelm Drewes, Peter Dahmen, Dieter Feucht, Rolf Pontzen, Akihiko Yanagi, Shinichi Narabu, Toshio Goto, Seishi Ito, Chieko Ueno
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Patent number: 6936570Abstract: The invention relates to novel tetrazolinone derivatives of general formula (I) wherein R1 represents halogen, C1-4 alkyl, C1-4 haloalkyl, C1-4 alkoxy, C1-4 alkylthio, C1-4 alkylsulfonyl, C1-4 alkylsulfonyloxy, C2-5 alkoxycarbonyl, C2-6 alkoxyalkyl, C2-6 alkylthioalkyl, nitro or cyano, R2 represents a hydrogen atom, C1-6 alkyl, C3-6 cycloalkyl which may be optionally substituted with halogen or C1-3 alkyl, C1-4 haloalkyl, or phenyl which may be optionally substituted with halogen, C1-3 alkyl, C1-3 haloalkyl or nitro, m represents 0, 1 or 2, n represents 0 or 1, Q represents one of the groups which are mentioned in the description. The invention further relates to their use as herbicides and a process together with the intermediates for their preparation.Type: GrantFiled: June 21, 2004Date of Patent: August 30, 2005Assignee: Nihon Bayer Agrochem, K.K.Inventors: Akihiko Yanagi, Shinichi Narabu, Toshio Goto, Seishi Ito, Chieko Ueno
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Publication number: 20040242895Abstract: The invention relates to novel tetrazolinone derivatives of general formula (I) wherein R1 represents halogen, C1-4 alkyl, C1-4 haloalkyl, C1-4 alkoxy, C1-4 alkylthio, C1-4 alkylsulfonyl, C1-4 alkylsulfonyloxy, C2-5 alkoxycarbonyl, C2-6 alkoxyalkyl, C2-6 alkylthioalkyl, nitro or cyano, R2 represents a hydrogen atom, C1-6 alkyl, C3-6 cycloalkyl which may be optionally substituted with halogen or C1-3 alkyl, C1-4 haloalkyl, or phenyl which may be optionally substituted with halogen, C1-3 alkyl, C1-3 haloalkyl or nitro, m represents 0, 1 or 2, n represents 0 or 1, Q represents one of the groups which are mentioned in the description. The invention further relates to their use as herbicides and a process together with the intermediates for their preparation.Type: ApplicationFiled: June 21, 2004Publication date: December 2, 2004Inventors: Akihiko Yanagi, Shinichi Narabu, Toshio Goto, Seishi Ito, Chieko Ueno
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Patent number: 6790810Abstract: The invention relates to novel tetrazolinone derivatives of general formula (I) wherein R1 represents halogen, C1-4 alkyl, C1-4 haloalkyl, C1-4 alkoxy, C1-4 alkylthio, C1-4 alkylsulfonyl, C1-4 alkylsulfonyloxy, C2-5 alkoxycarbonyl, C2-6 alkoxyalkyl, C2-6 alkylthioalkyl, nitro or cyano, R2 represents a hydrogen atom, C1-6 alkyl, C3-6 cycloalkyl which may be optionally substituted with halogen, or C1-3 alkyl, C1-4 haloalkyl or phenyl which may be optionally substituted with halogen, or C1-3 aklyl, C1-4 haloalkyl or nitro, m represents 0, 1 or 2, n represents 0 or 1, Q represents one of the groups which are mentioned in the description. The invention further relates to their use as herbicides and a process together with the intermediates for their preparation.Type: GrantFiled: June 30, 2003Date of Patent: September 14, 2004Assignee: Nihon Bayer Agrochem K.K.Inventors: Akihiko Yanagi, Shinichi Narabu, Toshio Goto, Seishi Ito, Chieko Ueno
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Publication number: 20040102635Abstract: The invention relates to novel tetrazolinone derivatives of general formula (I) wherein R1 represents halogen, C1-4 alkyl, C1-4 haloalkyl, C1-4 alkoxy, C1-4 alkylthio, C1-4 alkylsulfonyl, C1-4 alkylsulfonyloxy, C2-5 alkoxycarbonyl. C2-6 alkoxyalkyl, C2-6 alkylthioalkyl, nitro or cyano, R2 represents a hydrogen atom, C1-4 alkyl, C3-6 cycloalkyl which may be optionally substituted with halogen or C1-3 alkyl, C1-4 haloalkyl, or phenyl which may be optionally substituted with halogen, C1-3 alkyl, C1-3 haloalkyl or nitro, m represents 0.1 or 2, n represents 0 or 1, Q represents one of the groups which are mentioned in the description. The invention further relates to their use as herbicides and a process together with the intermediates for their preparation.Type: ApplicationFiled: June 30, 2003Publication date: May 27, 2004Inventors: Akihiko Yanagi, Shinichi Narabu, Toshio Goto, Seishi Ito, Chieko Ueno
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Publication number: 20040002599Abstract: The invention relates to novel substituted benzoylcyclohexenones of the formula (I), 1Type: ApplicationFiled: October 21, 2002Publication date: January 1, 2004Inventors: Klaus-Helmut Muller, Hans-Georg Schwarz, Stefan Herrmann, Dorothee Hoischen, Stefan Lehr, Otto Schallner, Mark Wilhelm Drewes, Peter Dahmen, Dieter Feucht, Rolf Pontzen, Akihiko Yanagi, Shinichi Narabu, Toshio Goto, Seishi Ito, Chieko Ueno
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Patent number: 6624121Abstract: Novel tetrazolinones with herbicidal activity are disclosed. The tetrazolinones of the present invention are represented by the general formula (I) wherein R1, R2, m, n and Q are as defined in the specification. A process for making the tetrazolinones of the present invention is also disclosed.Type: GrantFiled: February 5, 2002Date of Patent: September 23, 2003Assignee: Nihon Bayer Agrochem K.K.Inventors: Akihiko Yanagi, Shinichi Narabu, Toshio Goto, Seishi Ito, Chieko Ueno
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Patent number: 6548450Abstract: According to the instant invention there have been found novel tetrazolinone derivatives represented by the general formula (I) wherein R1 represents methyl or ethyl, R2 represents halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, alkylsulfinyl, alkylsulfonyl, phenyl, phenoxy, alkoxycarbonyl, nitro or cyano, and n represents 0, 1, 2, 3, 4 or 5, processes and intermediates for their preparation and their use as herbicides.Type: GrantFiled: November 15, 2001Date of Patent: April 15, 2003Assignee: Nihon Bayer Agrochem, K.K.Inventors: Yukiyoshi Watanabe, Toshio Goto, Seishi Ito, Chieko Ueno
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Patent number: 6440903Abstract: The invention relates to novel substituted 2,4-diamino-1,3,5-triazines of the formula (I) (in which R1, R2, R3, X and Z are each as described in the description), to processes and to novel intermediates for their preparation and to their use as herbicides.Type: GrantFiled: April 1, 1999Date of Patent: August 27, 2002Assignees: Bayer Aktiengesellschaft, Nihon Bayer Agrochem K.K.Inventors: Hans-Jochem Riebel, Stefan Lehr, Uwe Stelzer, Yukiyoshi Watanabe, Markus Dollinger, Seishi Ito, Toshio Goto, Akihiko Yanagi
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Patent number: 6284710Abstract: The invention relates to novel substituted 2-amino-4-alkylamino-1,3,5-triazines of the formula (I) in which R1 represents optionally substituted methyl, R2 represents hydrogen or alkyl, Y represents in each case optionally substituted benzyl, naphthylmethyl, heterocyclylmethyl or heterocyclyloxy, and Z represents hydrogen, represents halogen or represents in each case optionally substituted alkyl, alkoxy, alkylcarboxyl, alkoxycarbonyl, alkylthio, alkylsulphinyl, alkylsulphonyl, alkenyl or alkinyl, to processes and to novel intermediates for their preparation and to their use as herbicides.Type: GrantFiled: April 6, 1999Date of Patent: September 4, 2001Assignees: Bayer Aktiengesellschaft, Nihon Bayer Agrochem K.L.Inventors: Hans-Jochem Riebel, Stefan Lehr, Uwe Stelzer, Yukiyoshi Watanabe, Markus Dollinger, Peter Dahmen, Seishi Ito, Toshio Goto, Akihiko Yanagi
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Patent number: 6262275Abstract: Novel 1-substituted methyltetrazolinones of the formula (I) wherein R1 represents a 5-membered heterocyclic radical which has 1 to 3 heteroatoms selected arbitrarily from the group consisting of N, O and S and which is optionally substituted by halogen and/or C1-4 alkyl, or represents oxiran-2-yl, optionally chloro-substituted pyridyl or C1-4 alkyl-S(O)m— wherein m represents 0, 1 or 2, or represents a C3-6 alicyclic hydrocarbon radical; R2 and R3 represent, independently of one another, C1-6 alkyl, C3-7 cycloalkyl or optionally substituted phenyl, or R2 and R3 may form, together with the N-atom to which they are bonded, an optionally substituted ring; R4 represents a hydrogen atom or methyl; and n represents 0 or 1; as well as for their preparation processes and novel intermediates in their production. The inventive compounds of formula (I) are used as herbicides.Type: GrantFiled: August 4, 1999Date of Patent: July 17, 2001Assignee: Nihon Bayer Agrochem K.K.Inventors: Toshio Goto, Yoshinori Kitagawa, Seishi Ito, Katsuhiko Shibuya, Chieko Ueno, Yoshiko Kyo
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Patent number: 6174839Abstract: The invention is related to a novel phenylacetylene derivates of formula: wherein X represents hydrogen, halogen, optionally substituted C1-6 alkyl; Y represents hydrogen, halogen, cyano, nitro, optionally substituted C1-6 alkyl, C1-6 alkoxy, C3-8 cycloalkoxy, optionally substituted C1-6 alkylthio, C3-8 cycloalkylthio, C1-6 alkylsulfinyl, optionally substituted C1-6 alkylsulfonyl, C3-8 cycloalkylsulfonyl, C1-6 alkylsulfonyloxy, optionally substituted sulfonamide, optionally substituted carboxamide, etc., or Y may form together with Z which is bonded to the vicinal carbon atom a 5- or 6-membered ring; n is 0 or 1; Z represents hydrogen or halogen; m is 1 or 2; R represents hydrogen, halogen, C1-6 alkyl, tri(C1-6 alkyl)silyl, COORc or CONRdRe; Q represents a heterocyclic group, and their use as herbicid.Type: GrantFiled: February 23, 1999Date of Patent: January 16, 2001Assignee: Nihon Bayer Agrochem K.K.Inventors: Akihiko Yanagi, Shin-ichi Narabu, Toshio Goto, Seishi Ito, Natsuko Minegishi, Tatsuya Yamaoka, Chieko Ueno
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Patent number: 6017853Abstract: Novel 1-substituted methyltetrazolinones of the formula (I) ##STR1## wherein R.sup.1 represents a 5-membered heterocyclic radical which has 1 to 3 heteroatoms selected arbitrarily from the group consisting of N, O and S and which is optionally substituted by halogen and/or C.sub.1-4 alkyl, or represents oxiran-2-yl, optionally chloro-substituted pyridyl or C.sub.1-4 alkyl-S(O).sub.m --wherein m represents 0, 1 or 2, or represents a C.sub.3-6 alicyclic hydrocarbon radical; R.sup.2 and R.sup.3 represent, independently of one another, C.sub.1-4 alkyl, C.sub.3-7 cycloalkyl or optionally substituted phenyl, or R.sup.2 and R.sup.3 may form, together with the N-atom to which they are bonded, an optionally substituted ring; R.sup.4 represents a hydrogen atom or methyl; and n represents 0 or 1; as well as for their preparation processes and novel intermediates in their production. The inventive compounds of formula (I) are used as herbicides.Type: GrantFiled: July 9, 1997Date of Patent: January 25, 2000Assignee: Nihon Bayer Agrochem K.K.Inventors: Toshio Goto, Yoshinori Kitagawa, Seishi Ito, Katsuhiko Shibuya, Chieko Ueno, Yoshiko Kyo
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Patent number: 5981438Abstract: The present invention relates to novel 1-Phenyl-5-anilinotetrazoles of the formula (I): ##STR1## wherein, R.sup.1, R.sup.2, R.sup.3, R.sup.4, m and n have the meaning provided in the specification, precesses for their preparation and their use as microbiocides, insecticides and/or herbicides.Type: GrantFiled: January 22, 1998Date of Patent: November 9, 1999Assignee: Nihon Bayer Agrochem K.K.Inventors: Fritz Maurer, Kaori Kido, Yoshio Kurahashi, Haruko Sawada, Keiko Tanaka, Yuichi Otsu, Yumi Hattori, Katsuhiko Shibuya, Takahisa Abe, Toshio Goto, Seishi Ito
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Patent number: 5935907Abstract: The invention is related to a novel phenylacetylene derivates of formula: ##STR1## wherein X represents hydrogen, halogen, optionally substituted C.sub.1-6 alkyl; Y represents hydrogen, halogen, cyano, nitro, optionally substituted C.sub.1-6 alkyl, C.sub.1-6 alkoxy, C.sub.3-8 cycloalkoxy, optionally substituted C.sub.1-6 alkylthio, C.sub.3-8 cycloalkylthio, C.sub.1-6 alkylsulfinyl, optionally substituted C.sub.1-6 alkylsulfonyl, C.sub.3-8 cycloalkylsulfonyl, C.sub.1-6 alkylsulfonyloxy, optionally substituted sulfonamide, optionally substituted carboxamide, etc., or Y may form together with Z which is bonded to the vicinal carbon atom a 5- or 6-membered ring; n is 0 or 1; Z represents hydrogen or halogen; m is 1 or 2; R represents hydrogen, halogen, C.sub.1-6 alkyl, tri(C.sub.1-6 alkyl)silyl, COOR.sup.c or CONR.sup.d R.sup.e ; Q represents a heterocyclic group, and their use as herbicid.Type: GrantFiled: March 24, 1998Date of Patent: August 10, 1999Assignee: Nihon Bayer Agrochem K.K.Inventors: Akihiko Yanagi, Shin-ichi Narabu, Toshio Goto, Seishi Ito, Natsuko Minegishi, Tatsuya Yamaoka, Chieko Ueno
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Patent number: 5776858Abstract: 1-Azinyl-tetraozolinones of the following formulae (I) and (II): ##STR1## wherein R.sup.1 and R.sup.2 are independently represent alkyl, haloalkyl, cycloalkyl, alkenyl, haloalkenyl, alkynyl or optionally substituted phenyl, orR.sup.1 and R.sup.2, together with the nitrogen atom to which they are bonded, may form a 5- or 6-membered heterocyclic ring which may optionally contain a further heteroatom, and said heterocyclic ring may optionally be benzo-condensed and/or be substituted by one or more of C.sub.1-4 alkyl(s), andR.sup.3 is a 6-membered heterocyclic aromatic group consisting of carbon atoms and 2 or 3 nitrogen atoms, which may optionally be substituted by halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, C.sub.1-4 alkylthio, di(C.sub.1-4 alkyl)amino or phenyl.The compounds of the formula (I) exhibit an excellent herbicidal activity and the compounds of the formula (II) are useful as starting materials in the production of the compounds of the formula (I).Type: GrantFiled: October 25, 1996Date of Patent: July 7, 1998Assignee: Nihon Bayer Agrochem K.K.Inventors: Toshio Goto, Seishi Ito, Natsuko Minegishi, Tatsuya Yamaoka, Chieko Ueno, Koichi Moriya, Fritz Maurer, Ryo Watanabe
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Patent number: 5747420Abstract: Novel herbicidal tetrazolinone derivatives of the formula ##STR1## and intermediates therefor of the formula ##STR2## wherein R.sup.1 is alkyl substituted by halogen, andR.sup.2 and R.sup.3 each independently is alkyl, alkenyl, alkynyl, cycloalkyl, phenyl or substituted phenyl, orR.sup.2 and R.sup.3 together with the N-atom to which they are attached, which may form a 5- or 6-membered heterocyclic ring.Type: GrantFiled: November 3, 1995Date of Patent: May 5, 1998Assignee: Nihon Bayer Agrochem K.K.Inventors: Toshio Goto, Seishi Ito, Kazuhiro Ukawa, Yukiyoshi Watanabe, Shin-ichi Narabu, Akihiko Yanagi
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Patent number: 5710278Abstract: Herbicidal tetrazolinone derivatives of the formula: ##STR1## in which R.sup.1 is alkyl, haloalkyl, cycloalkyl, alkenyl, haloalkenyl, alkynyl or phenyl, andR.sup.2 is alkyl, haloalkyl, cycloalkyl, alkenyl, haloalkenyl, alkynyl or phenyl, orR.sup.1 and R.sup.2 together with the nitrogen atom to which they are bonded form an optionally benzofused heterocyclic ring, which is optionally substituted by C.sub.1-4 alkyl,n is 0, 1, 2 or 3, andR.sup.3 each independently is nitro, halogen, alkyl, haloalkyl, alkylthio or phenoxy.Type: GrantFiled: February 19, 1997Date of Patent: January 20, 1998Assignee: Nihon Bayer Agrochem K.K.Inventors: Toshio Goto, Koichi Moriya, Fritz Maurer, Seishi Ito, Katsuaki Wada, Kazuhiro Ukawa, Ryo Watanabe, Asami Ito
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Patent number: 5668087Abstract: Herbicidal 1-alkenyltetrazolinones of the formula: ##STR1## wherein R.sup.1 represents the group: ##STR2## or the group: ##STR3## R.sup.2 and R.sup.3, independently of one another, represent C.sub.1-6 alkyl, C.sub.3-7 cycloalkyl which may optionally be substited by methyl, C.sub.2-4 alkenyl, C.sub.2-5 alkynyl, phenyl which may optionally be substituted or aralkyl which may optionally be substituted, orR.sup.2 and R.sup.3 may optionally form, together with the N-atom to which they are bonded, a heterocyclic ring which may optionally be substituted, and novel intermediates therefor.Type: GrantFiled: March 15, 1996Date of Patent: September 16, 1997Assignee: Nihon Bayer Agrochem K.K.Inventors: Toshio Goto, Yoshinori Kitagawa, Seishi Ito, Katsuhiko Shibuya, Kazuhiro Ukawa, Yoshiko Kyo, Natsuko Minegishi
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Patent number: 5654257Abstract: 1-cycloalkenyltetrazolinone derivatives of the following herbicidal formula ##STR1## R.sup.1 is cycloalkenyl which may optionally be substituted by halogen C.sub.1-4 alkyl, or bicycloalkenyl which may optionally be substituted by halogen or C.sub.1-4 alkyl, andR.sup.2 and R.sup.3 each independently is alkyl, cycloalkyl, phenyl (optionally substituted by a member selected from the group consisting of nitro, cyano, halogen, alkyl, haloalkyl, alkoxy, haloalkoxy and alkylthio), alkenyl and alkynyl,orR.sup.2 and R.sup.3 together with the N-atom to which they are bonded form, a 5- or 6-membered heterocyclic ring which may optionally contain a further hetero atom, said heterocyclic ring optionally being benzo-condensed, or a C-.sub.Type: GrantFiled: February 15, 1996Date of Patent: August 5, 1997Assignee: Nihon Bayer Agrochem K.K.Inventors: Toshio Goto, Yoshinori Kitagawa, Seishi Ito, Katsuhiko Shibuya, Tatsuya Yamaoka, Chieko Ueno, Yoshiko Kyo