Patents Assigned to Wako Pure Chemical Industries Ltd.
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Patent number: 8580925Abstract: [PROBLEMS] To provide examination methods and reagents able to detect efficiently cancer patients and patients at high risk of cancer. [MEANS FOR SOLVING PROBLEMS] Significant differences in the distribution of GlcNAc-6-sulfotransferase isozymes, sulfation enzymes of sugar residues, between non-carcinoma tissues and carcinoma tissues or adenoma tissues were discovered. The discovery is evidently applicable to detect carcinomas and adenomas (except colorectal carcinomas and colorectal adenomas) specifically by assaying a certain range of GlcNAc-6-sulfated sugar residue groups in tissues of patients and in fecal samples. Examination of carcinomas and adenomas is possible by the use of antibodies reacting specifically with GlcNAc-6-sulfated sugar residues specifically synthesized by enzymes present in carcinoma and adenoma tissues.Type: GrantFiled: December 15, 2005Date of Patent: November 12, 2013Assignees: Japan Science and Technology Agency, Local Government of Aichi Prefecture, Wako Pure Chemical Industries, Ltd.Inventors: Reiji Kannagi, Mineko Izawa, Naoko Kimura, Shunsuke Kurei, Kazue Watanabe
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Patent number: 8580097Abstract: Methods are provided for forming a complex comprising an analyte (or an analyte analogue) from a blood-derived sample and labeling substances, and separating the complex from excess labeling substances and coexisting substances from the blood-derived sample, in a rapid, simple, convenient, and highly precise isotachophoresis (ITP) process by adding 2-(N-morpholino)ethane sulfonate (MES) salt and/or glutamate salt to the ITP sample. Methods are also provided for measuring the analyte in blood-derived samples with high precision and high sensitivity, based on the amount of the complex separated or the amount of uncomplexed labeling substance-containing molecules.Type: GrantFiled: February 19, 2010Date of Patent: November 12, 2013Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Tatsuo Kurosawa, Mitsuo Watanabe, Takuma Ohtsubo
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Publication number: 20130261040Abstract: A cleaning agent for a substrate having a copper wiring consisting of an aqueous solution comprising [I] an amino acid represented by the following general formula [1], and [II] an alkylhydroxylamine; and a method for cleaning a semiconductor substrate having a copper wiring characterized by using the relevant cleaning agent for a substrate having a copper wiring; (wherein R1 represents a hydrogen atom, a carboxymethyl group or a carboxyethyl group; and R2 and R3 each independently represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, which may have a hydroxyl group, provided that those where R1 to R3 are all hydrogen atoms are excluded.).Type: ApplicationFiled: November 28, 2011Publication date: October 3, 2013Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD.Inventors: Hiromi Kawada, Satoshi Shirahata, Hironori Mizuta, Masahiko Kakizawa, Kazuo Shiraki
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Patent number: 8546072Abstract: An object of the present invention is to provide a peptide derivative for determining ?-glucan or endotoxin which allows high sensitivity measurement, and a method for determining ?-glucan and/or endotoxin using the same.Type: GrantFiled: February 20, 2009Date of Patent: October 1, 2013Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Takeshi Kitagawa, Naoyuki Yamamoto, Mutsuhiro Date
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Patent number: 8546586Abstract: A cyanine dye derivative having high fluorescence intensity in a short wavelength region, and also a controllable migration velocity by further introducing a quaternary ammonium cation.Type: GrantFiled: April 27, 2010Date of Patent: October 1, 2013Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Naoyuki Yamamoto, Tatsuo Kurosawa, Satoshi Hasaba, Matsuhiro Date
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Patent number: 8546609Abstract: Problem: Providing a novel ionic liquid, which is low-cost, environment-friendly, and has low viscosity and melting point. Means for Solving the Problem: The present invention is the invention of the ionic liquid represented by the general formula [1]: {wherein, R1 to R3 and n pieces of R4 each independently represent hydrogen atom or alkyl group having 1 to 4 carbon atoms, R5 to R7 each independently represent alkyl group, aralkyl group, or aryl group, R8 represents alkyl group, aralkyl group, aryl group, or the one represented by the general formula [2]: (wherein T represents alkylene chain having 1 to 8 carbon atoms, n represents 1 or 2, and R1 to R7 are the same as the above-described), X represents nitrogen atom or phosphorus atom, n represents 1 or 2. When n is 1, R3 and R4 are bound and may form cyclohexene ring together with the adjacent carbon atoms. In addition, when X is nitrogen atom, R5 to R7 or R5 to R6 may form hetero ring with nitrogen atom binding thereto}.Type: GrantFiled: August 30, 2010Date of Patent: October 1, 2013Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Tsutomu Watahiki, Kuniaki Okamoto, Motoshige Sumino
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Patent number: 8518350Abstract: A reagent container having a plurality of open holding sections, each holding a reagent and into which a probe is inserted to suck the reagent. An opening of each of the holding sections is sealed with at least one sheet-like seal member. The reagent container includes a container body and a lid having a plurality of hollow piercing sections, formed on a lower surface of the lid, protruding downward for piercing the seal member at each of the openings, and openings, formed in an upper surface of the lid, communicating with piercing sections respectively to allow the probe to be inserted therethrough or withdrawn therefrom.Type: GrantFiled: September 24, 2008Date of Patent: August 27, 2013Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Tatsuyuki Denawa, Masayoshi Hayashi, Tatsuo Kurosawa, Masahiro Satomura, Mitsuo Watanabe
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Patent number: 8513139Abstract: The present invention is directed to provide an etching agent for a semiconductor substrate, which is capable of etching a titanium (Ti)-based metal film or a tungsten (W)-based metal film on a semiconductor substrate and an etching method using relevant etching agent, and relates to a liquid for preparing the etching agent for a semiconductor substrate composed of a solution comprising (A) hydrogen peroxide, (B) a phosphonic acid chelating agent having a hydroxyl group, (C) a basic compound, and (D-1) a copper anticorrosive and/or (D-2) 0.Type: GrantFiled: December 19, 2008Date of Patent: August 20, 2013Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Osamu Matsuda, Nobuyuki Kikuchi, Ichiro Hayashida, Satoshi Shirahata
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Publication number: 20130197206Abstract: The purpose of the present invention is to provide a method which is applicable to high throughput and by which small RNA can be obtained simply and efficiently. The present invention relates to a method for acquisition of small RNA, comprising contacting a carrier, in which a substance having affinity to small RNA-binding protein is immobilized on its surface, with a complex of the small RNA-binding protein and a small RNA (protein-RNA complex) to bind the protein-RNA complex to the aforementioned carrier, and releasing the small RNA by heating the carrier bound with the aforementioned protein-RNA complex at 70° C. to 100° C. in water or buffer solution of pH 3.0 to pH 8.Type: ApplicationFiled: September 20, 2011Publication date: August 1, 2013Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD.Inventors: Takahiro Nishibu, Kazunari Hirayasu
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Publication number: 20130171835Abstract: The purpose of the present invention to provide: a composition which can be used for water-repellent treating of the entire surface of a semiconductor substrate having a pattern formed by laminating a Si-containing insulating layer and a metal layer, at one time; and a method for water-repellent treatment of the semiconductor substrate surface using the composition. The present invention relates to: (1) a composition for water-repellent treatment of a semiconductor substrate surface comprising a) at least one kind of a compound selected from the group consisting of a long-chain alkyl tertiary amine and a long-chain alkyl ammonium salt, b) a base or an acid generating agent, having a condensed ring structure or forming a condensed ring structure by generating a base or an acid and c) a polar organic solvent, and (2) a method for water-repellent treatment of the semiconductor substrate surface having the pattern formed by laminating the Si-containing insulating layer and the metal layer, using the composition.Type: ApplicationFiled: September 7, 2011Publication date: July 4, 2013Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD.Inventors: Hironori Mizuta, Yoji Urano, Masahiko Kakizawa
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Publication number: 20130143129Abstract: [PROBLEM] To provide: a novel non-aqueous electrolytic solution which uses a methylenebissulfonate derivative, reduces initial irreversible capacity of a battery, and further improves battery characteristics such as cycle characteristics, electric capacity and storage characteristics; a method for producing the non-aqueous electrolytic solution; and a battery which uses the electrolytic solution. [SOLUTION] The present invention relates to the following <1> to <3>. <1> A non-aqueous electrolytic solution comprising the following (1) to (3).Type: ApplicationFiled: August 2, 2011Publication date: June 6, 2013Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD.Inventors: Kuniaki Okamoto, Motoshige Sumino, Tsutomu Watahiki, Kouki Ohkubo, Tatsuko Ikeda
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Patent number: 8455690Abstract: The invention provides a method for producing an arylhydroxylamine compound efficiently and safely under mild conditions. The method involves contacting a nitroaryl compound with a hydrogen source in the presence of a platinum catalyst supported on amino group-coordinated silica and a poisoning agent.Type: GrantFiled: March 27, 2008Date of Patent: June 4, 2013Assignees: Wako Pure Chemical Industries, Ltd., National Institute of Advanced Industrial Science and TechnologyInventors: Yasumasa Takenaka, Jun-Chul Choi, Toshiyasu Sakakura, Hiroyuki Yasuda, Takahiro Kiyosu
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Publication number: 20130130128Abstract: [PROBLEM] To provide: a novel non-aqueous electrolytic solution which uses a methylenebissulfonate derivative, reduced initial irreversible capacity of a battery, and further improves battery characteristics such as cycle characteristics, electric capacity and storage characteristics; a method for producing the non-aqueous electrolytic solution; and a battery which uses the electrolytic solution. [SOLUTION] The present invention related to the following <1> to <3>. <1> A non-aqueous electrolytic solution comprising the following (1) to (3).Type: ApplicationFiled: August 2, 2011Publication date: May 23, 2013Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD.Inventors: Kuniaki Okamoto, Motoshige Sumino, Tsutomu Watahiki, Kouki Ohkubo, Tatsuko Ikeda
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Publication number: 20130066070Abstract: To provide an environmentally-friendly method for producing industrially an ester compound. SOLUTION The present invention is a method for producing an ester compound which comprises subjecting a carboxylic acid and an alcohol to dehydration-condensation reaction using an involatile acid catalyst and then removing the residual acid catalyst by bringing a weak basic substance into contact with the residual acid catalyst.Type: ApplicationFiled: October 23, 2012Publication date: March 14, 2013Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD.Inventor: Wako Pure Chemical Industries, Ltd.
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Patent number: 8394324Abstract: A microfluidic device is provided with appropriate integrated structures to conduct large volume PCR and end-point or real-time capillary electrophoresis detection. The microfluidic device includes a substrate having an amplification chamber of a volume of nucleic acid, wells disposed on the substrate, flow channels connecting the wells and the chamber in the substrate to allow for solution flow through the chamber, and one or more separation channels provided in the substrate and connected to the chamber for separating and detecting a fraction of the amplified nucleic acid. The chamber, the flow channels, and the one or more separation channels are configured such that the hydrodynamic flow resistance of the chambers and the flow channels combined is at least 10?3 times smaller than the hydrodynamic flow resistance in the one or more separation channels. The microfluidic device can achieve a very high sensitivity in detection while being highly cost effective.Type: GrantFiled: June 11, 2008Date of Patent: March 12, 2013Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Luc Bousse, Jian-ping Zhang
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Patent number: 8318964Abstract: Problem To provide an environmentally-friendly method for producing industrially an ester compound. Solution The present invention is a method for producing an ester compound which comprises subjecting a carboxylic acid and an alcohol to dehydration-condensation reaction using an involatile acid catalyst and then removing the residual acid catalyst by bringing a weak basic substance into contact with the residual acid catalyst.Type: GrantFiled: October 20, 2007Date of Patent: November 27, 2012Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Shigeaki Imazeki, Ryohiko Kinoshita
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Patent number: 8269038Abstract: The present invention provides a method for producing a sulfonate ester efficiently and in high yield. The present invention is an invention of a method for producing a sulfonate ester compound, which comprising reacting: (a) a compound having a sulfo group (—SO3H); and (b) a compound having a group represented by the general formula [1]: —OR1??[1] [wherein, R1 represents a sulfonyl group represented by the general formula [2]: —SO2—R2??[2] (wherein, R2 represents a halogen atom, a haloalkyl group, an alkoxy group, or an optionally substituted alkyl group or an optionally substituted aryl group) or an acyl group represented by the general formula [3]: (wherein, R3 represents an optionally substituted alkyl group or an optionally substituted aryl group)]; in the presence of an organic base which is capable of forming a salt with said sulfo group.Type: GrantFiled: April 20, 2007Date of Patent: September 18, 2012Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Kuniaki Okamoto, Tsutomu Watahiki, Motoshige Sumino, Takao Shibasaki
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Patent number: 8242249Abstract: The present invention discloses an oligonucleotide which comprises a part or the entire sequence of the nucleotide sequence depicted in SEQ ID NO: 1, 2, 3 or 4, or a part or the entire sequence of a nucleotide sequence complementary to the nucleotide sequence, wherein the oligonucleotide is capable of hybridizing with the nucleotide sequence of Mycobacterium kansasii; a primer and a probe for use in the detection of Mycobacterium kansasii comprising the oligonucleotide; and a method for detecting Mycobacterium kansasii using the primer and/or probe. The method for detecting Mycobacterium kansasii enables the detection of M. kansasii more rapidly and with higher accuracy compared with a conventional bacterium identification method performed by culture examination on a bacterium. Further, the method can exclude any false positive result for the diagnosis and can also detect and diagnose M. kansasii with higher accuracy compared with a diagnosis method performed by PCR using a conventional primer and/or probe.Type: GrantFiled: May 11, 2006Date of Patent: August 14, 2012Assignee: Wako Pure Chemical Industries, Ltd.Inventor: Tomokazu Ishikawa
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Publication number: 20120172274Abstract: The present invention is directed to provide a resist remover composition for semiconductor substrate which enables to remove a resist simply and easily in the photolithography process in the semiconductor field, and a method for removing a resist comprising that the composition is used. The present invention relates to a resist remover composition for semiconductor substrate, comprising [I] a carbon radical generating agent, [II] an acid, [III] a reducing agent, and [IV] an organic solvent, and having pH of lower than 7, and a method for removing a resist, comprising that the composition is used.Type: ApplicationFiled: September 1, 2010Publication date: July 5, 2012Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD.Inventors: Hironori Mizuta, Masahiko Kakizawa
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Patent number: 8207337Abstract: [Problem] To provide an organoboron compound-containing reagent for organic synthesis reactions which undergoes no trimerization with dehydration, does not necessitate activation with a base, and is stable and highly active. [Means for Solving Problems] The reagent for organic synthesis reactions contains an organic triol borate salt represented by any of the general formulae (I) to (III) and general formula (XVI): (wherein R1 represents alkyl, alkenyl, etc.; R2 represents optionally substituted alkyl, alkenyl, alkynyl, etc. or represents hydrogen; m+ represents an alkaline metal ion, phosphonium ion, or given ammonium ion; M2+ represents an alkaline earth metal; X represents halogen or alkoxide; Y represents an alkali metal ion, etc.; A represents optionally substituted methylene; and n represents an integer).Type: GrantFiled: January 28, 2008Date of Patent: June 26, 2012Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Norio Miyaura, Yasunori Yamamoto