Patents by Inventor Kimihiro Ishikawa
Kimihiro Ishikawa 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: 6030926Abstract: A pyrazole derivative represented by the general formula (1a) or (1b): ##STR1## wherein R.sup.1 represents a hydrogen atom or a pesticidally acceptable protecting group; R.sup.2 and R.sup.3 represent a phenyl, 1-naphthyl or 2-naphthyl group, or a 5-6 membered heterocyclic ring and the like; R.sup.4 represents a hydrogen or halogen atom, or a alkyl, alkoxy or alkylthio group; and a herbicidal composition containing the pyrazole derivative.Type: GrantFiled: December 16, 1998Date of Patent: February 29, 2000Assignee: Nissan Chemical Industries, Ltd.Inventors: Katsushi Morimoto, Tomoyuki Ogura, Takeshi Nagaoka, Hiroyuki Furusawa, Koichi Nishio, Shigeru Ishii, Tsutomu Nawamaki, Kunimitsu Nakahira, Kimihiro Ishikawa
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Patent number: 5977027Abstract: The present invention provides a nitrogen-containing cyclic compound represented by the formula (1): ##STR1## wherein R.sup.1 represents an alkyl group; R represents a hydrogen atom or an alkyl group; X represents an oxygen or sulfur atom or NR.sup.3 ; Q.sup.1 represents a hydrogen atom, or an alkyl, cycloalkyl, alkenyl or alkynyl group or a phenyl, naphthyl or heterocyclic group etc.; Q.sup.2 represents an alkyl, cycloalkyl or alkenyl group, or a phenyl or thienyl group etc.; A.sup.1 represents a carbon or nitrogen atom; A.sup.2 represents CR.sup.2 or NR.sup.2, or an oxygen or sulfur atom, or SO or SO.sub.2 ; A.sup.3 represents a single bond, or an oxygen or sulfur atom, or CR.sup.5 or NR.sup.5) and a herbicide comprising the same, which herbicide exhibits very high herbicidal activity at very low application rate and has selectivity against crops.Type: GrantFiled: September 4, 1998Date of Patent: November 2, 1999Assignee: Nissan Chemical Industries, Ltd.Inventors: Yasuo Kawamura, Eiichi Oya, Kaoru Itoh, deceased, Hiroshi Kita, Hisashi Nakata, Kanji Sawada, Yoshitake Tamada, Tsutomu Nawamaki, Kimihiro Ishikawa, Kenichi Shiojima, Chiaki Kawaguchi, Kunimitsu Nakahira
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Patent number: 5939559Abstract: A pyrazole derivative represented by the general formula (1a) or (1b): whereinR.sup.1 represents a hydrogen atom or a pesticidally acceptable protecting group; R.sup.2 and R.sup.3 represent a phenyl, 1-naphthyl or 2-naphthyl group, or a 5-6 membered heterocyclic ring and the like; R.sup.4 represents a hydrogen or halogen atom, or a alkyl, alkoxy or alkylthio group; and a herbicidal composition containing the pyrazole derivative.Type: GrantFiled: October 27, 1997Date of Patent: August 17, 1999Assignee: Nissan Chemical Industries, Ltd.Inventors: Katsushi Morimoto, Tomoyuki Ogura, Takeshi Nagaoka, Hiroyuki Furusawa, Koichi Nishio, Shigeru Ishii, Tsutomu Nawamaki, Kunimitsu Nakahira, Kimihiro Ishikawa
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Patent number: 5834401Abstract: The present invention provides a nitrogen-containing cyclic compound represented by the formula (1): ##STR1## (wherein R.sup.1 represents an alkyl group; R represents a hydrogen atom or an alkyl group; X represents an oxygen or sulfur atom or NR.sup.3 ; Q.sup.1 represents a hydrogen atom, or an alkyl, cycloalkyl, alkenyl or alkynyl group, or a phenyl, naphthyl or heterocyclic group etc.; Q.sup.2 represents an alkyl, cycloalkyl or alkenyl group, or a phenyl or thienyl group etc.; A.sup.1 represents a carbon or nitrogen atom; A.sup.2 represents CR.sup.2 or NR.sup.2, or an oxygen or sulfur atom, or SO or SO.sub.2 ; A.sup.3 represents a single bond, or an oxygen or sulfur atom, or CR.sup.5 or NR.sup.5) and a herbicide comprising the same , which herbicide exhibits very high herbicidal activity at very low application rate and has selectivity against crops.Type: GrantFiled: December 16, 1996Date of Patent: November 10, 1998Assignee: Nissan Chemical Industries, Ltd.Inventors: Yasuo Kawamura, Eiichi Oya, Kaoru Itoh, deceased, Hiroshi Kita, Hisashi Nakata, Kanji Sawada, Yoshitake Tamada, Tsutomu Nawamaki, Kimihiro Ishikawa, Kenichi Shiojima, Chiaki Kawaguchi, Kunimitsu Nakahira
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Patent number: 5773388Abstract: Novel pyrimidine derivatives of the formula (I): ##STR1## wherein R1 is a C.sub.1 -C.sub.6 haloalkyl group, a C.sub.1 -C.sub.6 alkyl group, a C.sub.3 -C.sub.6 cycloalkyl group or the like, R2 is a hydrogen atom, a C.sub.1 -C.sub.6 alkyl group, a C.sub.3 -C.sub.6 cycloalkyl group or the like, and X is a carbonyl group or --C(R3)OH (wherein R3 is a hydrogen atom, a C.sub.1 -C.sub.6 alkyl group or the like).Type: GrantFiled: February 9, 1996Date of Patent: June 30, 1998Assignee: Nissan Chemical Industries, Ltd.Inventors: Jun Satow, Yasuo Kondo, Yoshihiro Kudo, Takumi Mikashima, Tsutomu Nawamaki, Yoichi Ito, Kazuhisa Sudo, Kunimitsu Nakahira, Shigeomi Watanabe, Kimihiro Ishikawa
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Patent number: 5750470Abstract: Provided are a pyridine derivative represented by the formula (1): ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 each independently represent a hydrogen atom, a C.sub.1-6 alkyl group, a C.sub.1-4 haloalkyl group, a C.sub.1-4 alkoxy group, a cyano group, a nitro group or a halogen atom,Qa represents a phenyl, pyrazolyl or pyridyl which may be substituted, Qb represents an azole, and X represents oxygen, sulfur or N-R.sup.4,R.sup.4 represents hydrogen or an alkyl group, and an agricultural chemical containing the same, particularly a herbicide.Type: GrantFiled: February 24, 1997Date of Patent: May 12, 1998Assignee: Nissan Chemical Industries, Ltd.Inventors: Katsushi Morimoto, Masatoshi Ohnari, Hiroyuki Furusawa, Takumi Terachi, Tsutomu Nawamaki, Kimihiro Ishikawa, Kunimitsu Nakahira, Chiaki Kawaguchi
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Patent number: 5716904Abstract: A novel 4,5-disubstituted pyrimidine derivative of the formula (I): ##STR1## wherein R1 is CF.sub.2 X (X is Cl or Br), R.sub.2 is a C.sub.1 -C.sub.8 alkyl group, a C.sub.3 -C.sub.8 cycloalkyl group, etc., R3 is a halogen atom, SH, NH.sub.2, etc., and R4 is a hydrogen atom, a halogen atom, a C.sub.1 -C.sub.6 alkyl group, etc., is a herbicide having excellent activities.Type: GrantFiled: May 1, 1996Date of Patent: February 10, 1998Assignee: Nissan Chemical Industries, Ltd.Inventors: Jun Satow, Yasuo Kondo, Yoshihiro Kudo, Takumi Mikashima, Tsutomu Nawamaki, Yoichi Ito, Kazuhisa Sudo, Kunimitsu Nakahira, Shigeomi Watanabe, Kimihiro Ishikawa
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Patent number: 5686390Abstract: An iminosulfonylurea compound or a salt thereof which is useful as a herbicide and growth control agent against weeds.Type: GrantFiled: December 15, 1995Date of Patent: November 11, 1997Assignee: Nissan Chemical Industries Ltd.Inventors: Kenzi Makino, Shigeaki Akiyama, Hideaki Suzuki, Takeshi Nagaoka, Toshio Niki, Koichi Suzuki, Tsutomu Nawamaki, Shigeomi Watanabe, Kimihiro Ishikawa
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Patent number: 5604179Abstract: An iminosulfonylurea derivative of the formula (1) or its salt ##STR1## wherein Q is ##STR2## wherein the variables are herein below defined, and a herbicidal and and growth control method.Type: GrantFiled: June 7, 1995Date of Patent: February 18, 1997Assignee: Nissan Chemical Industries Ltd.Inventors: Kenzi Makino, Shigeaki Akiyama, Hideaki Suzuki, Takeshi Nagaoka, Toshio Niki, Koichi Suzuki, Tsutomu Nawamaki, Shigeomi Watanabe, Kimihiro Ishikawa
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Patent number: 5584677Abstract: A base plate 41 of a movable scroll member 4 has, at its outer periphery, a section 44 with no scroll wall, while a scroll wall 22 of a stationary scroll member 2 has a section 24 for connecting to an outer cylindrical shell 22. These sections 44 and 24 make a relative lateral slide movement during an orbital movement of the movable scroll member 4 with respect to the stationary scroll member 2. These sections 44 and 24 have axially faced inner and outer edges 44-1 and 24-1, over which the relative lateral movement occurs. These inner and outer edges 44-1 and 24-1 are bevelled, the bevelling being such that any skewed movement of the movable scroll member with respect to the stationary scroll member does not cause locally increased contact pressure, thereby preventing galling as well as seizing.Type: GrantFiled: March 14, 1995Date of Patent: December 17, 1996Assignees: Nippondenso Co., Ltd., Kabushiki Kaisha Toyoda Jidoshokki SeisakushoInventors: Kimihiro Ishikawa, Takashi Miyakawa, Tetsuhiko Fukanuma, Tetsuo Yoshida
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Patent number: 5580228Abstract: A scroll member has a scroll wall having an axial end having a transverse surface on which a groove 20 is cut along the spiral direction of the scroll wall, to which groove a seal member contacting a facing scroll member is received. The scroll wall having a radially inner portion of having a width larger than the width of remaining part of the scroll wall. At the radially inner portion, the groove is also widened. When molding the scroll member, a recess deeper than the depth of the groove to be machined is created. The groove is obtained by machining the scroll member as molded by a milling tool. The widened portion of the groove is formed by moving a milling tool along a closed trajectory, so that the recess is left un-machined.Type: GrantFiled: December 27, 1994Date of Patent: December 3, 1996Assignees: Nippondenso Co., Ltd., Kabushiki Kaisha Toyoda Jidoshokki SeisakuchoInventors: Kimihiro Ishikawa, Takashi Miyakawa, Yasushi Watanabe, Tetsuhiko Fukanuma, Shinya Yamamoto
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Patent number: 5545608Abstract: Pyrazole-glycolic acid amides of the following formula (1) (in which R.sup.1 to R.sup.5 each represent a hydrogen atom or a substituent having a broad definition), and herbicides containing them. The compounds have a high herbicidal effect against paddy weeds, especially Echinochloa crus-galli, while highly safe for paddy rice plants.Type: GrantFiled: April 25, 1994Date of Patent: August 13, 1996Assignee: Nissan Chemical Industries, Ltd.Inventors: Katsushi Morimoto, Masatoshi Ohnari, Tsutomu Nawamaki, Shigeomi Watanabe, Kimihiro Ishikawa
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Patent number: 5518994Abstract: Disclosed are a herbicide and a plant growth regulator comprising a 2-arylaminopyrimidinone derivative represented by the formula (1): ##STR1## (wherein Q represents various kinds of aromatic ring or heterocyclic ring).This compound can be used safely to main crops and shows high herbicidal effect to many weeds with a low dosage, and also shows plant growth regulating effect.Type: GrantFiled: December 6, 1994Date of Patent: May 21, 1996Assignee: Nissan Chemical Industries, Ltd.Inventors: Yasuo Kawamura, Jun Satow, Kenzo Fukuda, Eiichi Oya, Kaoru Itoh, Hiroshi Kita, Hisashi Nakata, Tsutomu Nawamaki, Seiichi Fujii, Shigeomi Watanabe, Kimihiro Ishikawa, Yoichi Ito
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Patent number: 5500406Abstract: The present invention provides novel iminosulfonylurea derivatives which are useful as herbicides with excellent activity and selectivity. These derivatives can be used to protect rice, wheat, corn, soybean, cotton and sugar beet from weeds.Type: GrantFiled: April 15, 1994Date of Patent: March 19, 1996Assignee: Nissan Chemical Industries Ltd.Inventors: Kenzi Makino, Shigeaki Akiyama, Hideaki Suzuki, Takeshi Nagaoka, Toshio Niki, Koichi Suzuki, Tsutomu Nawamaki, Shigeomi Watanabe, Kimihiro Ishikawa
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Patent number: 5356863Abstract: The present invention relates to an uracil derivative represented by the formula (1): ##STR1## in which R.sup.1 represents hydrogen, alkyl or haloalkyl; R.sup.2 represents haloalkyl; R.sup.3 represents hydrogen, alkyl, haloalkyl, hydroxymethyl, halogen or nitro; R.sup.4 represents hydrogen or halogen; R.sup.5 represents hydrogen, halogen, nitro or cyano; X represents oxygen or sulfur: provided that the case where both of Da and Db represent hydrogen is excluded and a herbicide containing the same. The compound can be safely applied to important crops and shows high effect against many weeds in a low amount.Type: GrantFiled: October 21, 1993Date of Patent: October 18, 1994Assignee: Nissan Chemical Industries, Ltd.Inventors: Jun Satow, Kenzou Fukuda, Kaoru Itoh, Hiroshi Kita, Yasuo Kawamura, Koichi Suzuki, Tsutomu Nawamaki, Shigeomi Watanabe, Toshiharu Endo, Kimihiro Ishikawa