Patents Assigned to Wako Pure Chemical Industries Ltd.
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Patent number: 8921124Abstract: PROBLEM Provided is a novel cyanine dye derivative with a pyrazole skeleton and an indole skeleton, having high sensitivity performance in a shorter wavelength region as compared with a conventional optical system, and showing high water solubility.Type: GrantFiled: March 30, 2007Date of Patent: December 30, 2014Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Matsuhiro Date, Satoshi Hasaba, Naoyuki Yamamoto
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Patent number: 8900371Abstract: The present invention provides a cleaning agent for a substrate and a cleaning method thereof, which can effectively remove fine particles (particles) present on a surface of substrate or impurities derived from various kinds of metals (metallic impurities), without causing roughness surface of a substrate, in particular, a semiconductor substrate, and without causing corrosion or oxidation of metal wirings, in particular, copper wirings, provided on a surface of substrate, and can further remove at the same time a carbon defect present on a surface of substrate, without removing a metal corrosion inhibitor—Cu film, in particular, a Cu-BTA film.Type: GrantFiled: September 14, 2011Date of Patent: December 2, 2014Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Hironori Mizuta, Masahiko Kakizawa, Ichiro Hayashida
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Patent number: 8871653Abstract: An etching agent for a semiconductor substrate, which is capable of etching a titanium (Ti)-based metal film on a semiconductor substrate and an etching method using the 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. An etching method for etching a titanium (Ti)-based metal film on a semiconductor substrate using the etching agent. A solution comprising (B) a phosphonic acid chelating agent having a hydroxyl group, (C) a basic compound, and (D-1) a copper anticorrosive.Type: GrantFiled: March 18, 2013Date of Patent: October 28, 2014Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Osamu Matsuda, Nobuyuki Kikuchi, Ichiro Hayashida, Satoshi Shirahata
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Patent number: 8828918Abstract: An object of the present invention is to provide a semiconductor surface treating agent composition, which can realize easy removing of an anti-reflection coating layer in a production process of a semiconductor device or the like at a low temperature in a short time, a method for treating a semiconductor surface using the same, and further a semiconductor surface treating agent composition, which can realize not only removing of both layer of an anti-reflection coating layer and a resist layer, but can realize even removing of a cured resist layer produced in an etching process, and a method for treating a semiconductor surface using the same. The semiconductor surface treating agent composition of the present invention is characterized by comprising a compound which generates a fluorine ion in water, a carbon radical generating agent, and water and optionally an organic solvent, and the method for treating a semiconductor surface of the present invention is characterized by using the composition.Type: GrantFiled: March 6, 2009Date of Patent: September 9, 2014Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Hironori Mizuta, Osamu Matsuda
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Patent number: 8822163Abstract: Disclosed are a method for measuring ?G comprising the steps of bringing a sample into contact with a ?G-binding protein 1 and a ?G-binding protein 2, each comprising an amino acid sequence which is identical or substantially identical to an amino acid sequence shown in any one of SEQ ID NO:4, SEQ ID NO:6, SEQ ID NO:8, SEQ ID NO:10, SEQ ID NO:14, SEQ ID NO:16, SEQ ID NO:18, or SEQ ID NO:20, and having the ?-glucan binding activity, to form a complex of the ?G-binding protein 1, ?G in the sample and the ?G-binding protein 2, measuring quantity of the complex, and determining ?G concentration in the sample based on the quantity of the complex; a reagent and a kit for use in said method; a novel ?G-binding protein; a nucleic acid molecule encoding the ?G-binding protein; and a method for producing the aforementioned ?G-binding protein.Type: GrantFiled: March 17, 2010Date of Patent: September 2, 2014Assignee: Wako Pure Chemical Industries, Ltd.Inventor: Akito Yoneda
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Patent number: 8795499Abstract: Methods are provided for forming a complex comprising an analyte (or an analyte analog) 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: October 31, 2013Date of Patent: August 5, 2014Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Tatsuo Kurosawa, Mitsuo Watanabe, Takuma Ohtsubo
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Patent number: 8772037Abstract: In an analysis system having an analysis apparatus using a reagent container having a memory to store reagent information concerning the reagent in the reagent container and a remote computer, the following steps are executed: reading out the reagent information from the memory of the reagent container; judging, based on the read reagent information, whether or not the reagent in the reagent container is usable; when it is judged that the reagent in the reagent container is unusable, writing data representing the reagent is unusable into the memory of the reagent container; and when it is judged that the reagent in the reagent container is unusable, registering the data representing the reagent is unusable, into a reagent database managed by the remote computer in association with identification information to identify the reagent container. Thus, it is possible to automatically identify the reagent, which should not be used, and to manage the reagent not so as to use it for the analysis.Type: GrantFiled: July 22, 2005Date of Patent: July 8, 2014Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Masahiro Satomura, Hishiri Komiyama
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Patent number: 8758499Abstract: An aqueous solution containing a buffer and an organosilicone surfactant and a method of applying an aqueous solution containing a buffer and an organosilicone surfactant to a channel are presented. The aqueous solution includes a buffer and an organosilicone surfactant and may also include a blocking agent. The method includes providing an aqueous solution containing a buffer and an organosilicone surfactant, and applying the aqueous solution to the channel having the hydrophobic surfaces. The organosilicone surfactant is used to reduce surface tensions of the solution on the hydrophobic channel. The organosilicone surfactant is combined with the blocking agent for preventing an interaction between the surface of the channel and a component in the aqueous solution.Type: GrantFiled: March 26, 2009Date of Patent: June 24, 2014Assignee: Wako Pure Chemical Industries, Ltd.Inventors: William W. P. Chang, Yihshing Shih
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Publication number: 20140162143Abstract: It is an object of the present invention to provide an electrochemical device having an electrolytic solution having high current density and high oxidation resistance, as well as high safety, where dissolution and deposition of magnesium progress repeatedly and stably. The present invention relates to the electrolytic solution for an electrochemical device comprising (1) the supporting electrolyte composed of a magnesium salt and (2) at least one or more kinds of the compound represented by the following general formula [2], as well as the electrochemical device comprising said electrolytic solution, a positive electrode, a negative electrode and a separator.Type: ApplicationFiled: July 26, 2012Publication date: June 12, 2014Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD.Inventors: Tsutomu Watahiki, Takahiro Kiyosu, Kuniaki Okamoto
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Patent number: 8742136Abstract: It is an object of the present invention to provide a commercially advantageous method for producing a cyclic disulfonic acid ester with high yield, the present invention discloses a method for producing a cyclic disulfonic acid ester represented by the general formula (3), which comprises reacting a silver alkanedisulfonate represented by the general formula (1) with a dihaloalkane represented by the general formula (2) in a nonpolar solvent. Wherein X1 and X2 are each independently a chlorine atom, a bromine atom or an iodine atom; and Y and Z are each independently a substituted or unsubstituted alkylene chain which may have a heteroatom in the chain.Type: GrantFiled: June 14, 2007Date of Patent: June 3, 2014Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Kuniaki Okamoto, Tsutomu Watahiki, Motoshige Sumino
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Publication number: 20140142324Abstract: The present invention is directed to provide an efficient production method which is capable of not only obtaining a cyclic sulfonic acid ester (sultone) at low cost and in high yield, but also the sulfonic acid ester (sultone) stably even in a commercial scale. The present invention relates to a method for producing hydroxysultone comprising a first step where a diol having a specified structure and a thionyl halide are reacted to obtain a cyclic sulfite having a specified structure, and a second step where the cyclic sulfite is reacted with water or/and alcohol; a method for producing an unsaturated sultone having a specified structure comprising a third step where a hydroxylsultone having a specified structure is reacted with an acid halide or an acid anhydride to obtain an intermediate, subsequently the intermediate is treated with a base; as well as a cyclic sulfite having a specified structure.Type: ApplicationFiled: January 24, 2014Publication date: May 22, 2014Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD.Inventors: Ayako KURAMOTO, Kuniaki OKAMOTO, Tsutomu WATAHIKI, Motoshige SUMINO
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Patent number: 8716513Abstract: Object To provide a method for producing a bis-quaternary ammonium salt efficiently and a novel synthetic intermediate thereof. Solution The present invention relates to a method for producing a bis-quaternary ammonium salt represented by a general formula [3] which comprises reacting a disulfonic acid ester represented by a general formula [1] (in the formula, definitions of two R1's and T are as described in claim 1) with a tertiary amine represented by a general formula [2] (in the formula, definitions of R3 to R5 are as described in claim 1), and a disulfonic acid ester represented by a general formula [1?] (in the formula, two R16's represent independently a halogen atom or a C1-C3 fluoroalkyl group, and two m's represent independently an integer of 1 to 5).Type: GrantFiled: August 5, 2010Date of Patent: May 6, 2014Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Kuniaki Okamoto, Tsutomu Watahiki, Motoshige Sumino
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Publication number: 20140113311Abstract: The purpose of the present invention is to provide an agglutination enhancer which shows superior agglutination enhancing effect to those of conventional immunoagglutination enhancers, and the present invention relates to an agglutination enhancer for an immunoagglutination measurement method which comprises a polymer having a monomer unit shown by the following general formula [1]: (Wherein R1 represents a hydrogen atom or a methyl group; R2 and R3 independently represent a methyl group or an ethyl group, respectively; X represents —NH— or an oxygen atom; n represents an integer of 1 to 6; and m represents an integer of 1 to 3), and an immunoagglutination measurement method in which, in the coexistence of the above-described agglutination enhancer for immunoagglutination measurement method, an antibody against analyte or an antigen for the analyte is brought into contact with the analyte to cause an antigen-antibody reaction.Type: ApplicationFiled: June 4, 2012Publication date: April 24, 2014Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD.Inventors: Naoyuki Yamamoto, Tsutomu Masuda
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Publication number: 20140110260Abstract: 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: ApplicationFiled: October 31, 2013Publication date: April 24, 2014Applicant: Wako Pure Chemical Industries, Ltd.Inventors: Tatsuo Kurosawa, Mitsuo Watanabe, Takuma Ohtsubo
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Patent number: 8673963Abstract: The present invention is directed to provide an efficient production method which is capable of not only obtaining a cyclic sulfonic acid ester (sultone) at low cost and in high yield, but also the sulfonic acid ester (sultone) stably even in a commercial scale. The present invention relates to a method for producing hydroxysultone comprising a first step where a diol having a specified structure and a thionyl halide are reacted to obtain a cyclic sulfite having a specified structure, and a second step where the cyclic sulfite is reacted with water or/and alcohol; a method for producing an unsaturated sultone having a specified structure comprising a third step where a hydroxylsultone having a specified structure is reacted with an acid halide or an acid anhydride to obtain an intermediate, subsequently the intermediate is treated with a base; as well as a cyclic sulfite having a specified structure.Type: GrantFiled: August 3, 2010Date of Patent: March 18, 2014Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Ayako Kuramoto, Kuniaki Okamoto, Tsutomu Watahiki, Motoshige Sumino
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Patent number: 8669375Abstract: 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 23, 2012Date of Patent: March 11, 2014Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Shigeaki Imazeki, Ryohiko Kinoshita
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Patent number: 8663990Abstract: A subject of the present invention is to provide a measurement method using an internal standard substance in an electrophoresis where an analyte is a protein or a compound. The present invention relates to a measurement method for an analyte by an electrophoresis, characterized in that a peak of the analyte is identified by using as an internal standard substance (1) a combination of a compound I having 3 or more anion groups in a molecule and a compound II where 1 to 3 groups of the anion groups of said compound I have been substituted by cation groups, or (2) a combination of a compound III having 3 or more cation groups in a molecule and a compound IV where 1 to 3 groups of the cation groups of said compound III have been substituted by cation groups.Type: GrantFiled: April 27, 2010Date of Patent: March 4, 2014Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Naoyuki Yamamoto, Tatsuo Kurosawa
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Patent number: 8628926Abstract: Primers and probes are provided for selectively detecting tubercle bacillus, and methods for detecting low copy numbers of human tubercle bacillus (Mycobacterium tuberculosis) using the same are presented. Oligonucleotides comprising a part of or an entire sequence of the nucleic acid sequence described in SEQ ID NO:1, SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO:S, SEQ ID NO:6, SEQ ID NO:7 or SEQ ID NO:8, or a part of or an entire sequence of the complementary sequence thereof are disclosed, wherein the oligonucleotide has a property of hybridizing with the nucleic acid sequence of IS6110 gene in Mycobacterium tuberculosis. Primers and probes containing such oligonucleotides, and methods for detecting Mycobacterium tuberculosis using the primers and the probes are presented.Type: GrantFiled: October 25, 2011Date of Patent: January 14, 2014Assignee: Wako Pure Chemical Industries, Ltd.Inventor: Tomokazu Ishikawa
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Publication number: 20130337451Abstract: The invention provides a method for obtaining DNA after bisulfite reaction which can be stored with libraries in genome reserved and has excellent storage stability, and a method for detecting methylated cytosine. Specifically, the invention provides a method for obtaining DNA complementary to single-stranded DNA in which non-methylated cytosine has been uracilated by subjecting single-stranded DNA to a bisulfite reaction and then a reverse transcriptase reaction. The resulting complementary DNA can be amplified by a PCR reaction. Methylated cytosine can be detected in single-stranded DNA by subjecting the single-stranded DNA, in order, to a bisulfite reaction, a reverse transcriptase reaction, and a PCR reaction, and then subjecting the obtained PCR amplification product to nucleotide sequence analysis.Type: ApplicationFiled: December 14, 2011Publication date: December 19, 2013Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD.Inventor: Yukinobu Hayashida
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Publication number: 20130309775Abstract: It is a subject of the present invention to provide a novel polymer; a filler for measuring a perfluoro compound having an acidic group at terminal which comprises said polymer; a column filled with said filler; and a measuring method for a perfluoro compound having an acidic group at terminal by using said column; as well as a filler for measuring a drug comprising the above-described polymer; a column filled with said filler; and a measuring method for a drug by using said column.Type: ApplicationFiled: July 24, 2013Publication date: November 21, 2013Applicants: Nippon Filcon Co., Ltd., Wako Pure Chemical Industries, Ltd.Inventors: Yoshinori Inoue, Kimiko Yoshida, Mamoru Kubota, Hitoshi Uemori