Patents by Inventor Ichiki Takemoto
Ichiki Takemoto 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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Publication number: 20050260525Abstract: The present invention provides a chemically amplified positive resist composition comprising (A) a resin which comprises (i) at least one structural unit selected from the group consisting of structural units of the formulas (no and (V), (ii) a structural unit of the formula (I) and (iii) a structural unit of the formula (II), and (B) an acid generator. The present invention also provides a haloester derivative of the formula (XXI) and a process for producing the same.Type: ApplicationFiled: May 6, 2005Publication date: November 24, 2005Applicant: Sumitomo Chemical Company, LimitedInventors: Ichiki Takemoto, Kazuhiko Hashimoto, Takayuki Miyagawa
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Publication number: 20050158656Abstract: The present invention provides a chemical amplification type positive resist composition comprising (A) a resin which comprises (i) 5 to 50% by mol of a structural unit of the formula (I), (ii) 5 to 50% by mol of a structural unit of the formula (II) and (iii) 5 to 59% by mol of at least one selected from the group consisting of structural units of the formulas (III) and (IV), and (B) an acid generator. The present composition is suitable for excimer laser lithography using ArF, KrF and the like, and shows various outstanding resist abilities, specifically, gives better effective sensitivity and resolution to resist patterns obtained therefrom, and gives particularly excellent pattern shape and excellent line edge roughness.Type: ApplicationFiled: January 19, 2005Publication date: July 21, 2005Inventors: Ichiki Takemoto, Kazuhiko Hashimoto, Satoshi Yamaguchi
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Patent number: 6245478Abstract: A resist composition exhibiting an improved profile performance without impairing the resolution, the sensitivity, etc. which comprises a binder component; a radiation-sensitive component; and a succinimide compound represented by the following formula (I): wherein Q1 represents an alkyl group which may be optionally substituted with alkoxy, halogen or nitro, an alicyclic hydrocarbon residue, an aryl group, or an aralkyl group; and Q2, which may be the same as or different from Q1, represents hydrogen, an alkyl group which may be optionally substituted with alkoxy, halogen or nitro, an alicyclic hydrocarbon residue, an aryl group, or an aralkyl group.Type: GrantFiled: September 17, 1999Date of Patent: June 12, 2001Assignee: Sumitomo Chemical Company, LimitedInventors: Yasunori Uetani, Ichiki Takemoto
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Patent number: 5256822Abstract: There is disclosed an imine derivative of the general formula: ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and are hydrogen, C.sub.1 -C.sub.6 alkyl or aryl, with the proviso that R.sup.1 and R.sup.2 are not simultaneously hydrogen; or R.sup.1 and R.sup.2 are joined together to form C.sub.4 -C.sub.6 alkylene. Also disclosed is a process for the production of the imine derivative.Type: GrantFiled: February 5, 1993Date of Patent: October 26, 1993Assignee: Sumitomo Chemical Company, LimitedInventors: Ichiki Takemoto, Takeo Fujii, Hideyuki Goto, Ritsu Okajima
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Patent number: 4835286Abstract: Various intermediates useful in the production of herbicidal 2-substituted phenyl-4,5,6,7-tetrahydro-2H-indazole compounds are disclosed. These intermediates have the following formulas: ##STR1## wherein X is chlorine or bromine, Z is chlorine or methyl, and A is amino, hydroxyl, or nitro; ##STR2## wherein B is nitro or hydroxy, and X is chlorine or bromine.Type: GrantFiled: March 9, 1987Date of Patent: May 30, 1989Assignee: Sumitomo Chemical Company, LimitedInventors: Eiki Nagano, Ichiki Takemoto, Masayuki Fukushima, Ryo Yoshida, Hiroshi Matsumoto
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Patent number: 4803270Abstract: A process is disclosed for producing a fluoroaniline derivative of the formula: ##STR1## wherein X is an oxygen atom or an imino group. The process includes reacting 1,5-dichloro-2,4-dinitrobenzene with a glycol derivative of the formula:Y--CH.sub.2 --XH (II)wherein X is defined above and Y is a cyano group, a carboxy group or a lower alkoxycarbonyl group to produce a chlorodinitrobenzene derivative of the formula: ##STR2## wherein X and Y are as defined above. The chlorodinitrobenzene derivative (III) is reacted with a metal fluoride to produce a fluorodinitrobenzene derivative of the formula: ##STR3## wherein X and Y are as defined above. The fluorodintrobenzene derivative (IV) is subjected to reductive cyclization to obtain the fluoroaniline derivative (I).Type: GrantFiled: March 9, 1987Date of Patent: February 7, 1989Assignee: Sumitomo Chemical Company, LimitedInventor: Ichiki Takemoto
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Patent number: 4762948Abstract: An optically active arylacetic acid derivative of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and are each an hydrogen atom, a lower alkyl group or a phenyl group; and Ar is a group of the formula: ##STR2## a group of the formula: ##STR3## wherein R.sub.3 and R.sub.4 are the same or different and are each a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group, a difluoromethoxy group, a trifluoromethyl group or a phenyl group is prepared in good conversion and optical yield by asymmetrically reducing an ethylenically unsaturated compound of the formula: ##STR4## wherein R.sub.1, and R.sub.2 and Ar are the same as defined above with hydrogen in the presence of a metal catalyst modified with a ligand selected from the group consisting of a specific optically active metallocenyl phosphine derivative and a specific optically active binaphthyl derivative.Type: GrantFiled: July 9, 1987Date of Patent: August 9, 1988Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshihiko Ito, Tamio Hayashi, Norio Kawamura, Ichiki Takemoto
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Patent number: 4690709Abstract: Novel N'-phenyl-N-methylurea derivatives of the formula: ##STR1## wherein R.sub.1 is a hydrogen atom, a methyl group or a methoxy group, R.sub.2 is a hydrogen atom or a lower alkyl group, R.sub.3, which may be the same or different, is a halogen atom, a lower alkyl group, a lower alkoxy group, a lower alkylthio group or a trifluoromethyl group, n is an integer of 0 to 5, X is a hydrogen atom or a halogen atom, Y is an oxygen atom or a sulfur atom and Z is a straight or branched C.sub.1 -C.sub.8 alkylene group which may have no less than one atom of oxygen and/or sulfur at the terminal of and/or inside the carbon chain, which shows a pronounced herbicidal activity against a wide variety of weeds in the cultivation of crop plants as well as a notable fungicidal activity agaist a wide variety of phytopathogenic fungi causing plant diseases to crop plants without any material toxicity to mammals and fish or chemical injury to said crop plants.Type: GrantFiled: November 3, 1980Date of Patent: September 1, 1987Assignee: Sumitomo Chemical Company, LimitedInventors: Ichiki Takemoto, Seizo Sumida, Ryo Yoshida, Katsuzo Kamoshita
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Patent number: 4670043Abstract: A 2-substituted phenyl-4,5,6,7-tetrahydro-2H-indazole compound of the formula: ##STR1## wherein X is a chlorine atom or a bromine atom, Y is an oxygen atom or an imino group, Z is a chlorine atom or a methyl group and R is a C.sub.2 -C.sub.4 alkyl group, a C.sub.3 -C.sub.4 alkenyl group or a C.sub.3 -C.sub.4 alkynyl group, which is useful as a herbicide.Type: GrantFiled: March 28, 1985Date of Patent: June 2, 1987Assignee: Sumitomo Chemical Company, LimitedInventors: Eiki Nagano, Ichiki Takemoto, Masayuki Fukushima, Ryo Yoshida, Hiroshi Matsumoto
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Patent number: 4624699Abstract: A 2-substituted phenyl-4,5,6,7-tetrahydro-2H-indazole compound of the formula: ##STR1## wherein X is a chlorine atom or a bromine atom, Y is an oxygen atom or an imino group, Z is a chlorine atom or a methyl group and R is a C.sub.1 -C.sub.6 alkoxycarbonylmethyl group, a C.sub.3 -C.sub.6 cycloalkoxycarbonylmethyl group or a C.sub.1 -C.sub.4 haloalkoxycarbonylmethyl group, which is useful as a herbicide.Type: GrantFiled: March 28, 1985Date of Patent: November 25, 1986Assignee: Sumitomo Chemical Company LimitedInventors: Eiki Nagano, Ichiki Takemoto, Masayuki Fukushima, Ryo Yoshida, Hiroshi Matsumoto
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Patent number: 4563535Abstract: A compound of the formula: ##STR1## wherein R is an isoproyl group or an n-amyloxycarbonylmethyl group, useful as a herbicide, is effectively produced by reacting a compound of the formula: ##STR2## wherein R is as defined above, with sulfuryl chloride or chlorine in a solvent in the presence of a dehydrohalogenating agent.Type: GrantFiled: September 12, 1984Date of Patent: January 7, 1986Assignee: Sumitomo Chemical Co., Ltd.Inventor: Ichiki Takemoto
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Patent number: 4437880Abstract: A compound of the formula: ##STR1## wherein R is a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group, X is a C.sub.3 -C.sub.4 alkylene group or a C.sub.3 alkenylene group, Y is a hydrogen atom or a chlorine atom, A is a methyl group or a methoxy group and the substituted ureido group is present at the m- or p-position to the group of the formula: ##STR2## which is useful as a herbicide.Type: GrantFiled: May 28, 1981Date of Patent: March 20, 1984Assignee: Sumitomo Chemical Company, LimitedInventors: Junya Takahashi, Ichiki Takemoto, Katsuzo Kamoshita, Ryo Yoshida, Haruhiko Katoh, Seizo Sumida
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Patent number: 4427596Abstract: A compound of the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3, which may be same or different, are each hydrogen or C.sub.1 -C.sub.4 alkyl, X is chlorine or bromine, Y is hydrogen, chlorine, bromine, fluorine or iodine and Z is N,N-dimethylamino, N-methoxy-N-methylamino, C.sub.1 -C.sub.4 alkyl or C.sub.3 -C.sub.6 cycloalkyl, which is useful as a herbicide.Type: GrantFiled: March 13, 1981Date of Patent: January 24, 1984Assignee: Sumitomo Chemical Company, LimitedInventors: Ichiki Takemoto, Katsuzo Kamoshita, Ryo Yoshida, Seizo Sumida
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Patent number: 4378992Abstract: Novel N'-phenyl-N-methylurea derivatives of the formula: ##STR1## wherein R is a C.sub.4 -C.sub.10 cycloalkyl group, a C.sub.4 -C.sub.10 cycloalkenyl group, a C.sub.4 -C.sub.10 cycloalkyl group condensed with a benzene ring or substituted with at least one C.sub.1 -C.sub.4 alkyl group or a C.sub.4 -C.sub.10 cycloalkenyl group condensed with a benzene ring or substituted with a C.sub.1 -C.sub.4 alkyl group, Z is a C.sub.1 -C.sub.4 alkylene group which may have an atom of oxygen and/or sulfur at the terminal of and/or inside the carbon chain, Y is an oxygen atom or a sulfur atom, A is a hydrogen atom, a methyl group or a methoxy group and n is an integer of 0 or 1 with the proviso that in the chain consisting of --(Z).sub.n --Y--, oxygen and/or sulfur atoms can not be present in succession, which shows a pronounced herbicidal activity against a wide variety of weeds in the cultivation of crop plants without any material toxicity to mammals and any chemical injury to said crop plants.Type: GrantFiled: January 24, 1980Date of Patent: April 5, 1983Assignee: Sumitomo Chemical Company, LimitedInventors: Ryo Yoshida, Ichiki Takemoto, Seizo Sumida, Katsuzo Kamoshita
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Patent number: 4334912Abstract: A compound of the formula: ##STR1## wherein A is a hydrogen atom, a methyl group or a methoxy group, X is a straight or branched C.sub.1 -C.sub.4 alkylene chain, Y is an oxygen atom or a sulfur atom, R, which may be the same or different, is a lower alkyl group, a lower alkoxy group, a trifluoromethyl group, a chlorine atom, a bromine atom or a fluorine atom, m is an integer of 0 to 5 and n is an integer of 0 or 1, provided that in case of R being a fluorine atom, m is an integer of 0 to 5 and in case of R being other than a fluorine atom, m is an integer of 0 to 3, which shows a pronounced herbicidal activity against a wide variety of weeds in the cultivation of crop plants without any material toxicity to mammals and any chemical injury to said crop plants.Type: GrantFiled: March 12, 1980Date of Patent: June 15, 1982Assignee: Sumitomo Chemical Company, LimitedInventors: Ryo Yoshida, Haruhiko Katoh, Seizo Sumida, Ichiki Takemoto, Junya Takahashi, Katsuzo Kamoshita
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Patent number: 4328166Abstract: A compound of the formula: ##STR1## which is useful as a herbicide, is effectively produced by reacting a compound of the formula: ##STR2## with dimethyl sulfate in a two phase reaction medium consisting of water and a hydrophobic organic solvent in the presence of a phase transfer catalyst, or produced through a novel intermediate of the formula: ##STR3##Type: GrantFiled: November 21, 1980Date of Patent: May 4, 1982Assignee: Sumitomo Chemical Company, LimitedInventors: Fumio Fujita, Hiroshi Kishida, Nobushige Itaya, Ichiki Takemoto
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Patent number: 4309212Abstract: Novel N'-phenyl-N-methylurea derivatives of the formula: ##STR1## wherein R.sub.1 is a hydrogen atom, a methyl group or a methoxy group, R.sub.2 is a hydrogen atom or a lower alkyl group, R.sub.3, which may be the same or different, is a halogen atom, a lower alkyl group, a lower alkoxy group, a lower alkylthio group or a trifluoromethyl group, n is an integer of 0 to 5, X is a hydrogen atom or a halogen atom, Y is an oxygen atom or a sulfur atom and Z is a straight or branched C.sub.1 -C.sub.8 alkylene group which may have no less than one atom of oxygen and/or sulfur at the terminal of and/or inside the carbon chain, which shows a pronounced herbicidal activity against a wide variety of weeds in the cultivation of crop plants as well as a notable fungicidal activity against a wide variety of phytopathogenic fungi causing plant diseases to crop plants without any material toxicity to mammals and fish or any chemical injury to said crop plants.Type: GrantFiled: October 19, 1978Date of Patent: January 5, 1982Assignee: Sumitomo Chemical Company, LimitedInventors: Ichiki Takemoto, Seizo Sumida, Ryo Yoshida, Katsuzo Kamoshita
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Patent number: 4263219Abstract: A compound of the formula: ##STR1## which is useful as a herbicide, is effectively produced by reacting a compound of the formula: ##STR2## with dimethyl sulfate in a two phase reaction medium consisting of water and a hydrophobic organic solvent in the presence of a phase transfer catalyst, or produced through a novel intermediate of the formula: ##STR3##Type: GrantFiled: February 21, 1979Date of Patent: April 21, 1981Assignee: Sumitomo Chemical Company, LimitedInventors: Fumio Fujita, Hiroshi Kishida, Nobushige Itaya, Ichiki Takemoto
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Patent number: 4260411Abstract: A compound of the formula: ##STR1## wherein A is a hydrogen atom, a methyl group or a methoxy group, Rs are same or different and each a halogen atom, a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a trifluoromethyl group, a cyano group or a methylenedioxy group, X is a hydrogen atom or a halogen atom, Y is an oxygen atom or a sulfur atom, Z is a lower alkylene group and n is an integer of 0 to 3, provided that the substituted ureido group being present at the m- or p-position to the substituent represented by the symbol X and at the same time at the m- or p-position to the substituent represented by the symbol Z, which shows herbicidal and/or fungicidal activities and can be prepared, for instance, by reacting the corresponding phenyl isocyanate with a reagent of the formula: ##STR2## wherein A is as defined above.Type: GrantFiled: March 12, 1979Date of Patent: April 7, 1981Assignee: Sumitomo Chemical Company, LimitedInventors: Ryo Yoshida, Ichiki Takemoto, Seizo Sumida, Katsuzo Kamoshita
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Patent number: 4249938Abstract: An N'-phenyl-N-methyl-urea derivative of the formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are each hydrogen, lower alkyl, lower alkoxy, lower alkylthio, halogen or trifluoromethyl, R.sup.4 is hydrogen or lower alkyl, A is methyl or methoxy, X is oxygen or sulfur, Y is hydrogen or halogen, Z is a straight or branched alkylene chain having not more than 8 carbon atoms which may have no less than one atom of oxygen and/or sulfur inside and/or at the end of the alkylene chain and n is an integer of 1 to 3, which shows a pronounced herbicidal activity against a wide variety of weeds in the cultivation of crop plants without any material toxicity to mammals or fish or any chemical injury to said crop plants.Type: GrantFiled: June 27, 1978Date of Patent: February 10, 1981Assignee: Sumitomo Chemical Company, LimitedInventors: Ichiki Takemoto, Seizo Sumida, Ryo Yoshida, Katsuzo Kamoshita