Patents by Inventor Yasuhiro Kawachi
Yasuhiro Kawachi 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: 9206803Abstract: An oil pump apparatus for supplying an oil to a vehicular transmission, includes a pump to suck the oil from an oil reservoir through an inlet port into a pumping chamber, and an intake circuit to convey the oil sucked from the oil reservoir to the inlet port. The intake circuit includes a proximal segment, an intermediate segment and a distal segment. The proximal segment extends from the inlet port, to the intermediate segment. The intermediate segment extends upwards from the proximal segment. The distal segment extends downwards from a first connecting end portion connected with the intermediate segment to a end portion formed with an suction opening to suck the oil from the oil reservoir into the intake circuit.Type: GrantFiled: May 27, 2011Date of Patent: December 8, 2015Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.Inventors: Keichi Tatewaki, Akio Nonomura, Yasuhiro Kawachi
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Patent number: 8614320Abstract: A 2-(N-methyl-N-methanesulfonylamino)pyrimidine compound of the formula (3): [R is a hydrocarbyl group], is prepared by the steps of: (I) reacting an isobutyrylacetate ester with 4-fluorobenzaldehyde and urea in the presence of a protonic compound and a metal salt; (II) oxidizing the reaction product of the step (I); (III) reacting the oxidation product of the step (II) with an organic sulfonyl halide or an organic sulfonyl anhydride; and (IV) reacting the reaction product of the step (III) with N-methyl-N-methanesulfonamide.Type: GrantFiled: June 14, 2012Date of Patent: December 24, 2013Assignee: AstraZeneca UK LimitedInventors: Akio Matsushita, Mizuho Oda, Yasuhiro Kawachi, Jun-ichi Chika
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Patent number: 8344096Abstract: The phosphorus-containing polycarbonate polyol disclosed herein has a structural unit (I) represented by a formula: —OCOO— and a structural unit (II) represented by a residue A, wherein A denotes a n-valent residue in which n of alcoholic hydroxyl groups are removed from a phosphorus compound having at least n of alcoholic hydroxyl groups, in which n is an integer of 2 or larger, and wherein a terminal group of the polyol is a alcoholic hydroxyl group. The novel phosphorus-containing polycarbonate polyol, as a reactive flame-retardant agent, can provide flame-retardant properties easily to polyurethane or the like.Type: GrantFiled: July 4, 2008Date of Patent: January 1, 2013Assignee: Ube Industries, Ltd.Inventors: Ryoichi Takasawa, Kosuke Fujiyama, Masahiro Naiki, Masahiko Watanabe, Yasuhiro Kawachi
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Publication number: 20120277432Abstract: A 2-(N-methyl-N-methanesulfonylamino)pyrimidine compound of the formula (3): [R is a hydrocarbyl group], is prepared by the steps of: (I) reacting an isobutyrylacetate ester with 4-fluorobenzaldehyde and urea in the presence of a protonic compound and a metal salt; (II) oxidizing the reaction product of the step (I); (III) reacting the oxidation product of the step (II) with an organic sulfonyl halide or an organic sulfonyl anhydride; and (IV) reacting the reaction product of the step (III) with N-methyl-N-methanesulfonamide.Type: ApplicationFiled: June 14, 2012Publication date: November 1, 2012Applicant: ASTRAZENECA UK LTD.Inventors: Akio Matsushita, Mizuho Oda, Yasuhiro Kawachi, Jun-ichi Chika
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Patent number: 8222412Abstract: A 2-(N-methyl-N-methanesulfonylamino)pyrimidine compound of the formula (3): [R is a hydrocarbyl group], is prepared by the steps of: (I) reacting an isobutyrylacetate ester with 4-fluorobenzaldehyde and urea in the presence of a protonic compound and a metal salt; (II) oxidizing the reaction product of the step (I); (III) reacting the oxidation product of the step (II) with an organic sulfonyl halide or an organic sulfonyl anhydride; and (IV) reacting the reaction product of the step (III) with N-methyl-N-methanesulfonamide.Type: GrantFiled: September 23, 2010Date of Patent: July 17, 2012Assignee: AstraZeneca UK LimitedInventors: Akio Matsushita, Mizuho Oda, Yasuhiro Kawachi, Jun-ichi Chika
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Publication number: 20110293442Abstract: An oil pump apparatus for supplying an oil to a vehicular transmission, includes a pump to suck the oil from an oil reservoir through an inlet port into a pumping chamber, and an intake circuit to convey the oil sucked from the oil reservoir to the inlet port. The intake circuit includes a proximal segment, an intermediate segment and a distal segment. The proximal segment extends from the inlet port, to the intermediate segment. The intermediate segment extends upwards from the proximal segment. The distal segment extends downwards from a first connecting end portion connected with the intermediate segment to a end portion formed with an suction opening to suck the oil from the oil reservoir into the intake circuit.Type: ApplicationFiled: May 27, 2011Publication date: December 1, 2011Inventors: Keichi TATEWAKI, Akio NONOMURA, Yasuhiro KAWACHI
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Publication number: 20110160455Abstract: A 2-(N-methyl-N-methanesulfonylamino)pyrimidine compound of the formula (3): [R is a hydrocarbyl group], is prepared by the steps of: (I) reacting an isobutyrylacetate ester with 4-fluorobenzaldehyde and urea in the presence of a protonic compound and a metal salt; (II) oxidizing the reaction product of the step (I); (III) reacting the oxidation product of the step (II) with an organic sulfonyl halide or an organic sulfonyl anhydride; and (IV) reacting the reaction product of the step (III) with N-methyl-N-methanesulfonamide.Type: ApplicationFiled: September 23, 2010Publication date: June 30, 2011Applicant: AstraZeneca UK Ltd.Inventors: Akio Matsushita, Mizuho Oda, Yasuhiro Kawachi, Jun-ichi Chika
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Patent number: 7816528Abstract: A 2-(N-methyl-N-methanesulfonylamino)pyrimidine compound of the formula (3): [R is a hydrocarbyl group], is prepared by the steps of: (I) reacting an isobutyrylacetate ester with 4-fluorobenzaldehyde and urea in the presence of a protonic compound and a metal salt; (II) oxidizing the reaction product of the step (I); (III) reacting the oxidation product of the step (II) with an organic sulfonyl halide or an organic sulfonyl anhydride; and (IV) reacting the reaction product of the step (III) with N-methyl-N-methanesulfonamide.Type: GrantFiled: November 1, 2007Date of Patent: October 19, 2010Assignee: AstraZeneca UK LimitedInventors: Akio Matsushita, Mizuho Oda, Yasuhiro Kawachi, Jun-ichi Chika
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Publication number: 20100197887Abstract: The phosphorus-containing polycarbonate polyol disclosed herein has a structural unit (I) represented by a formula: —OCOO— and a structural unit (II) represented by a residue A, wherein A denotes a n-valent residue in which n of alcoholic hydroxyl groups are removed from a phosphorus compound having at least n of alcoholic hydroxyl groups, in which n is an integer of 2 or larger, and wherein a terminal group of the polyol is a alcoholic hydroxyl group. The novel phosphorus-containing polycarbonate polyol, as a reactive flame-retardant agent, can provide flame-retardant properties easily to polyurethane or the like.Type: ApplicationFiled: July 4, 2008Publication date: August 5, 2010Applicant: UBE INDUSTRIES, LTD.Inventors: Ryoichi Takasawa, Kosuke Fujiyama, Masahiro Naiki, Masahiko Watanabe, Yasuhiro Kawachi
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Publication number: 20100041860Abstract: A polyimide obtained by reacting a tetracarboxylic acid component with a diamine component containing a diamine compound represented by the following general formula (1): wherein, A represents a biphenylene group which may be substituted with an alkyl group having up to 4 carbon atoms.Type: ApplicationFiled: November 12, 2007Publication date: February 18, 2010Applicant: UBE INDUSTRIES, LTD.Inventors: Hiroaki Yamaguchi, Shuichi Maeda, Nobuharu Hisano, Shinsuke Yabunaka, Kiyotaka Yoshii, Masayoshi Ohue, Akio Matsushita, Yasuhiro Kawachi
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Publication number: 20080058520Abstract: A 2-(N-methyl-N-methanesulfonylamino)pyrimidine compound of the formula (3): [R is a hydrocarbyl group], is prepared by the steps of: (I) reacting an isobutyrylacetate ester with 4-fluorobenzaldehyde and urea in the presence of a protonic compound and a metal salt; (II) oxidizing the reaction product of the step (I); (III) reacting the oxidation product of the step (II) with an organic sulfonyl halide or an organic sulfonyl anhydride; and (IV) reacting the reaction product of the step (III) with N-methyl-N-methanesulfonamide.Type: ApplicationFiled: November 1, 2007Publication date: March 6, 2008Inventors: Akio Matsushita, Mizuho ODA, Yasuhiro KAWACHI, Jun-ichi CHIKA
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Patent number: 7304156Abstract: A 2-(N-methyl-N-methanesulfonylamino)pyrimidine compound of the formula (3): [R is a hydrocarbyl group], is prepared by the steps of: (I) reacting an isobutyrylacetate ester with 4-fluorobenzaldehyde and urea in the presence of a protonic compound and a metal salt; (II) oxidizing the reaction product of the step (I); (III) reacting the oxidation product of the step (II) with an organic sulfonyl halide or an organic sulfonyl anhydride; and (IV) reacting the reaction product of the step (III) with N-methyl-N-methanesulfonamide.Type: GrantFiled: July 12, 2002Date of Patent: December 4, 2007Assignee: AstraZeneca UK LimitedInventors: Akio Matsushita, Mizuho Oda, Yasuhiro Kawachi, Jun-ichi Chika
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Publication number: 20040176401Abstract: A 2-(N-methyl-N-methanesulfonylamino)pyrimidine compound of the formula (3): [R is a hydrocarbyl group], is prepared by the steps of: (I) reacting an isobutyrylacetate ester with 4-fluorobenzaldehyde and urea in the presence of a protonic compound and a metal salt; (II) oxidizing the reaction product of the step (I); (III) reacting the oxidation product of the step (II) with an organic sulfonyl halide or an organic sulfonyl anhydride; and (IV) reacting the reaction product of the step (III) with N-methyl-N-methanesulfonamide.Type: ApplicationFiled: January 12, 2004Publication date: September 9, 2004Inventors: Akio Matsushita, Mizuho Oda, Yasuhiro Kawachi, Jun-ichi Chika
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Patent number: 5892126Abstract: Disclosed is a process for preparing 4-fluoro-3-trifluoromethylphenol from 4-fluoro-3-trifluoromethylaniline, which comprises the steps of (1) using about 1 to 20 parts by weight of water based on 1 part by weight of 4-fluoro-3-trifluoromethylaniline in the presence of sulfuric acid to obtain 4-fluoro-3-trifluoromethylaniline sulfate; (2) subjecting the obtained 4-fluoro-3-trifluoromethylaniline sulfate to a diazotization reaction by using a diazotizing agent to obtain an aqueous solution containing about 8 to 25% by weight of a 4-fluoro-3-trifluoromethylbenzene-diazonium salt where a sulfuric acid concentration after diazotization is about 30 to 70% by weight in terms of the amount of sulfuric acid added, and the amount of water used is about 1 to 20 parts by weight based on 1 part by weight of 4-fluoro-3-trifluoromethylaniline; and (3) hydrolyzing the obtained 4-fluoro-3-trifluoromethylbenzenediazonium salt where a sulfuric acid concentration is about 30 to 70% by weight in terms of the amount of sulfuric aType: GrantFiled: November 13, 1997Date of Patent: April 6, 1999Assignee: Ube Industries, Ltd.Inventors: Katsumasa Harada, Akio Matsushita, Yasuhiro Kawachi
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Patent number: 5744604Abstract: Methyl (3R, 6E)-3-?(tert-butyldimethylsilyl)oxy!-7-?2', 6'-diisopropyl-4'-(4"-fluorophenyl)-5'-(methoxymethyl)pyridin-3'-yl!-5-oxy -6-heptenoate or other 3-oxy-5-oxo-6-heptenoic acid derivative is prepared by the reaction of an aromatic aldehyde and an oxyglutaric acid derivative in an aliphatic alcohol containing a small amount of water in the presence of an alkali metal carbonate or hydrogen carbonate.Type: GrantFiled: May 20, 1997Date of Patent: April 28, 1998Assignee: Ube Industries, Ltd.Inventors: Katsumasa Harada, Akio Matsushita, Yasuhiro Kawachi, Hiroshi Sasaki
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Patent number: 5717124Abstract: A process for preparing an oxyglutaric acid ester derivative of the formula: ##STR1## in which each of R.sup.1 and R.sup.2 is C.sub.1-5 alkoxy, C.sub.1-7 aralkyloxy, C.sub.7-9 halogenated aralkyloxy or phenyl, R.sup.4 is a hydroxyl-protecting group, and R.sup.5 is C.sub.1-10 alkyl which may have a substituent, comprises the steps of reacting a methyl phosphonate derivative or methyl phosphine oxide derivative with an oxyglutaric acid mono-ester to give a reaction product which comprises an oxyglutaric acid derivative having a phosphorus-containing group and a pentenedioic acid mono-ester (by-product), removing the pendenedioic acid mono-ester from the reaction product to isolate the oxyglutaric acid derivative, and converting the isolated oxyglutaric acid derivative into the oxyglutaric acid ester derivative. A process for obtaining an optically active oxyglutaric acid ester derivative is also disclosed.Type: GrantFiled: October 4, 1995Date of Patent: February 10, 1998Assignee: Ube Industries, Ltd.Inventors: Katsumasa Harada, Akio Matsushita, Hiroshi Sasaki, Yasuhiro Kawachi
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Patent number: 5677455Abstract: Methyl (3R,6E)-3-?(tert-butyldimethylsilyl)oxy!-7-?2',6'-diisopropyl-4'-(4"-fluor ophenyl)-5'-(methoxymethyl)pyridin-3'-yl!-5-oxy-6-heptenoate or other 3-oxy-5-oxo-6-heptenoic acid derivative is prepared by the reaction of an aromatic aldehyde and an oxyglutaric acid derivative in an aliphatic alcohol containing a small amount of water in the presence of an alkali metal carbonate or hydrogen carbonate.Type: GrantFiled: September 6, 1995Date of Patent: October 14, 1997Assignee: Ube Industries, Ltd.Inventors: Katsumasa Harada, Akio Matsushita, Yasuhiro Kawachi, Hiroshi Sasaki