Patents by Inventor Ken Otaka
Ken Otaka 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: 7846956Abstract: The present invention provides a malononitrile compound represented by the formula (I): wherein any one of X1, X2, X3 and X4 is CR100, wherein R100 is a group represented by the formula: the other three of X1, X2, X3 and X4 each represent nitrogen or CR5, provided that 1 to 3 of X1, X2, X3 and X4 represent nitrogen, and Z represents oxygen, sulfur or NR6, which has pest-controlling activity.Type: GrantFiled: January 13, 2005Date of Patent: December 7, 2010Assignee: Sumitomo Chemical Company, LimitedInventors: Hiromasa Mitsudera, Ken Otaka, Jun Fujiwara
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Patent number: 7662402Abstract: The present invention provides a nitrile compound represented by the formula (I): wherein R represents C1-C4 fluoroalkyl, Q represents halogen, C1-C11 alkyl optionally substituted with halogen, C2-C6 alkenyl group optionally substituted with halogen, C2-C6 alkynyl optionally substituted with halogen, C3-C7 cycloalkyl optionally substituted with halogen or (C3-C7 cycloalkyl optionally substituted with halogen) C1-C4 alkyl, which has excellent control effect against pests.Type: GrantFiled: December 22, 2004Date of Patent: February 16, 2010Assignee: Sumitomo Chemical Company, LimitedInventors: Daisuke Oohira, Ken Otaka
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Publication number: 20090149425Abstract: The present invention provides a malononitrile compound represented by the formula (I): wherein any one of X1, X2, X3 and X4 is CR100, wherein R100 is a group represented by the formula: the other three of X1, X2, X3 and X4 each represent nitrogen or CR5, provided that 1 to 3 of X1, X2, X3 and X4 represent nitrogen, and Z represents oxygen, sulfur or NR6, which has pest-controlling activity.Type: ApplicationFiled: January 13, 2005Publication date: June 11, 2009Inventors: Hiromasa Mitsudera, Ken Otaka, Jun Fujiwara
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Patent number: 7439266Abstract: The present invention relates to a novel malononitrile compound represented by the formula (A): wherein, R1 represents C1 to C6 alkyl that may be substituted with halogen, C2 to C6 alkenyl that may be substituted with halogen, etc; R2 represents hydrogen atom or C1 to C6 alkyl that may be substituted with halogen; R3 represents hydrogen atom or C1 to C6 alkyl; R4 represents hydrogen atom or C1 to C6 alkyl; R5 represents C1 to C6 alkyl that may be substituted with halogen, C3 to C6 alkenyl that may be substituted with halogen, etc, or R4 and R5 may be combined at their terminal and represent ethylene that may be substituted with C1 to C3 alkyl or trimethylene that may be substituted with C1 to C3 alkyl; and Z1 and Z2, which are the same or different, represent oxygen atom or sulfur atom. The malononitrile compound has an efficient pesticidal activity and can control effectively pests such as insect pests, acarine pests, nematode pests and the like.Type: GrantFiled: August 26, 2003Date of Patent: October 21, 2008Assignee: Sumitomo Chemical Company, LimitedInventors: Satoshi Okada, Daisuke Oohira, Ken Otaka
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Patent number: 7402691Abstract: The present invention relates to malononitrile compounds of formula (Y): wherein R1 and R2 are the same or different and independently C1-C5 (halo)alkyl, C1-C5 (halo)alkyloxy, C2-C5 (halo)alkenyl, C2-C5 (halo)alkynyl, hydrogen, or cyano; R3 is C1-C3 haloalkyl, C2-C4 haloalkenyl, or C2-C4 haloalkynyl; m is an integer of 1 to 3; R5 is halogen, cyano, nitro, C1-C4 (halo)alkyl, or the like; n is an integer of 0 to 4, with the proviso that when n is 2 or more, then R5's are the same or different from each other; R6 is hydrogen, halogen, cyano, nitro, C1-C4 (halo)alkyl, or the like; as well as pesticide compositions containing these compounds as active ingredients. The present invention makes it possible to effectively control pests such as insect pests, acarine pests, and nematode pests.Type: GrantFiled: April 18, 2005Date of Patent: July 22, 2008Assignee: Sumitomo Chemical Company, LimitedInventors: Ken Otaka, Daisuke Oohira, Satoshi Okada
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Publication number: 20070112068Abstract: The present invention provides a nitrile compound represented by the formula (I): wherein R represents C1-C4 fluoroalkyl, Q represents halogen, C1-C11 alkyl optionally substituted with halogen, C2-C6 alkenyl group optionally substituted with halogen, C2-C6 alkynyl optionally substituted with halogen, C3-C7 cycloalkyl optionally substituted with halogen or (C3-C7 cycloalkyl optionally substituted with halogen) C1-C4 alkyl, which has excellent control effect against pests.Type: ApplicationFiled: December 22, 2004Publication date: May 17, 2007Inventors: Daisuke Oohira, Ken Otaka
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Patent number: 7026340Abstract: The present invention relates to a novel malononitrile compound represented by the formula (I): wherein, R1 represents a C1 to C5 (halo)alkyl and the like, R2 represents a C1 to C5 (halo)alkyl, R3 and R4 are the same or different and are a C1 to C6 (halo)alkyl and the like, R5 represents a halogen atom and the like, n is an integer of 0 to 4 and when n is 2 or more, R5 may be the same or different.Type: GrantFiled: July 7, 2003Date of Patent: April 11, 2006Assignee: Sumitomo Chemical Company, LimitedInventors: Ken Otaka, Daisuke Oohira, Daisuke Takaoka
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Patent number: 7011838Abstract: The present invention relates to malononitrile compounds of formula wherein R1 and R2 are the same or different and independently C1–C5 (halo)alkyl, C1–C5 (halo)alkyloxy, C2–C5 (halo)alkenyl, C2–C5 (halo)alkynyl, hydrogen, or cyano; R3 is C1–C3 haloalkyl, C2–C4 haloalkenyl, or C2–C4 haloalkynyl; m is an integer of 1 to 3; R5 is halogen, cyano, nitro, C1–C4 (halo)alkyl, or the like; n is an integer of 0 to 4, with the proviso that when n is 2 or more, then R5's are the same or different from each other; R6 is hydrogen, halogen, cyano, nitro, C1–C4 (halo)alkyl, or the like; as well as pesticide compositions containing these compounds as active ingredients. The present invention makes it possible to effectively control pests such as insect pests, acarine pests, and nematode pests.Type: GrantFiled: May 8, 2002Date of Patent: March 14, 2006Assignee: Sumitomo Chemical Company, LimitedInventors: Ken Otaka, Daisuke Oohira, Satoshi Okada
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Publication number: 20060004092Abstract: The present invention relates to a novel malononitrile compound represented by the formula (A): wherein, R1 represents C1 to C6 alkyl that may be substituted with halogen, C2 to C6 alkenyl that may be substituted with halogen, etc; R2 represents hydrogen atom or C1 to C6 alkyl that may be substituted with halogen; R3 represents hydrogen atom or C1 to C6 alkyl; R4 represents hydrogen atom or C1 to C6 alkyl; R5 represents C1 to C6 alkyl that may be substituted with halogen, C3 to C6 alkenyl that may be substituted with halogen, etc, or R4 and R5 may be combined at their terminal and represent ethylene that may be substituted with C1 to C3 alkyl or trimethylene that may be substituted with C1 to C3 alkyl; and Z1 and Z2, which are the same or different, represent oxygen atom or sulfur atom. The malononitrile compound has an efficient pesticidal activity and can control effectively pests such as insect pests, acarine pests, nematode pests and the like.Type: ApplicationFiled: August 26, 2003Publication date: January 5, 2006Inventors: Satoshi Okada, Daisuke Oohra, Ken Otaka
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Publication number: 20050209323Abstract: The present invention relates to malononitrile compounds of formula (Y): wherein R1 and R2 are the same or different and independently C1-C5 (halo)alkyl, C1-C5 (halo)alkyloxy, C2-C5 (halo)alkenyl, C2-C5 (halo)alkynyl, hydrogen, or cyano; R3 is C1-C3 haloalkyl, C2-C4 haloalkenyl, or C2-C4 haloalkynyl; m is an integer of 1 to 3; R5 is halogen, cyano, nitro, C1-C4 (halo)alkyl, or the like; n is an integer of 0 to 4, with the proviso that when n is 2 or more, then R5's are the same or different from each other; R6 is hydrogen, halogen, cyano, nitro, C1-C4 (halo)alkyl, or the like; as well as pesticide compositions containing these compounds as active ingredients. The present invention makes it possible to effectively control pests such as insect pests, acarine pests, and nematode pests.Type: ApplicationFiled: April 18, 2005Publication date: September 22, 2005Inventors: Ken Otaka, Daisuke Oohira, Satoshi Okada
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Publication number: 20050176784Abstract: The present invention relates to a novel malononitrile compound represented by the formula (I): wherein, R1 represents a C1 to C5 (halo)alkyl and the like, R2 represents a C1 to C5 (halo)alkyl, R3 and R4 are the same or different and are a C1 to C6 (halo)alkyl and the like, R5 represents a halogen atom and the like, n is an integer of 0 to 4 and when n is 2 or more, R5 may be the same or different. The malononitrile compound has an efficient pesticidal activity and can control effectively pests such as insect pests, acarine pests, nematode pests and the like.Type: ApplicationFiled: July 7, 2003Publication date: August 11, 2005Inventors: Ken Otaka, Daisuke Oohira, Daisuke Takaoka
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Publication number: 20040142821Abstract: The present invention relates to use of malononitrile compounds of formula (X): 1Type: ApplicationFiled: November 7, 2003Publication date: July 22, 2004Inventors: Ken Otaka, Masaya Suzuki, Daisuke Oohira
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Publication number: 20040143007Abstract: The present invention relates to malononitrile compounds of formula (Y): 1Type: ApplicationFiled: November 7, 2003Publication date: July 22, 2004Inventors: Ken Otaka, Daisuke Oohira, Masaya Suzuki
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Publication number: 20040138065Abstract: The present invention relates to malononitrile compounds of formula 1Type: ApplicationFiled: November 7, 2003Publication date: July 15, 2004Inventors: Ken Otaka, Daisuke Oohira, Satoshi Okada
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Pyrethroid compound and composition for controlling pest containing the same as an active ingredient
Patent number: 6423745Abstract: (S)-2-methyl-4-oxo-3-(2-propynyl)-cyclopent-2-enyl (1R)-trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate represented by the formula: is a compound excellent in controlling effect on insect pests and harmlessness to mammals.Type: GrantFiled: May 7, 1999Date of Patent: July 23, 2002Assignee: Sumitomo Chemical Co., Ltd.Inventors: Ken Otaka, Takao Ishiwatari -
Patent number: 6049001Abstract: Novel fluorine-containing carboxylic acid compounds of formula (II) are provided that can be reacted together with a base to produce industrially useful 3-(2-chloro-2-fluorovinyl)-2,2-dimethyl cyclopropanecarboxylic acid compounds of formula (I). The fluorine-containing containing carboxylic acid compounds of formula (II), if so desired, can be produced by reacting together a carboxylic acid compound of formula (III) and trichlorofluoromethane. In each of the formulas (I), (II), and (III), R is a lower alkyl group or a hydrogen atom.Type: GrantFiled: July 28, 1999Date of Patent: April 11, 2000Assignee: Sumitomo Chemical Company, LimitedInventors: Ken Otaka, Noritada Matsuo
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Patent number: 5004753Abstract: This invention relates to novel carboxylic acid esters represented by the formula (I) below, methods for their production and insecticides containing them as an active ingredient, and an alcohol compound useful as an intermediate for manufacturing carboxylic acid esters represented by the formula (I), ##STR1## wherein R.sup.1 represents a halogenated lower alkyl group, R.sup.2 represents a fluorine atom or a methyl group, R.sup.3 represents a hydrogen atom or a methyl group, R.sup.4 represents a hydrogen atom or a methyl group, and when R.sup.4 is a hydrogen atom, R.sup.5 represents a group of the formula, ##STR2## in which X and Y are the same or different and represent a hydrogen atom, a methyl group, a halogen atom or a halogenated lower alkyl group, and when R.sup.4 is a methyl group, R.sup.5 represents a methyl group.Type: GrantFiled: April 20, 1990Date of Patent: April 2, 1991Assignee: Sumitomo Chemical Company, LimitedInventors: Ken Otaka, Noritada Matsuo, Kazunori Tsushima, Toshihiko Yano