Patents Assigned to Wako Pure Chemical Industries Ltd.
  • Publication number: 20120157680
    Abstract: 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: Application
    Filed: August 30, 2010
    Publication date: June 21, 2012
    Applicant: Wako Pure Chemical Industries, Ltd.
    Inventors: Tsutomu Watahiki, Kuniaki Okamoto, Motoshige Sumino
  • Publication number: 20120157368
    Abstract: The present invention is directed to provide a semiconductor surface treating agent composition which is capable of stripping an anti-reflection coating layer, a resist layer, and a cured resist layer in the production process of a semiconductor device and the like easily and in a short time, as well as a method for treating a semiconductor surface, comprising that the composition is used.
    Type: Application
    Filed: September 1, 2010
    Publication date: June 21, 2012
    Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD.
    Inventors: Hironori Mizuta, Takuhiro Kimura
  • Patent number: 8188256
    Abstract: The present invention discloses an oligonucleotide which comprises a part or the entire sequence of the nucleotide sequence shown in SEQ ID NO: 1, SEQ ID NO: 2, SEQ ID NO: 3, SEQ ID NO: 4, SEQ ID NO: 5, SEQ ID NO: 6, SEQ ID NO: 7 or SEQ ID NO: 8, or a part or the entire sequence of a sequence complementary to the nucleotide sequence shown in SEQ ID NO: 1, SEQ ID NO: 2, SEQ ID NO: 3, SEQ ID NO: 4, SEQ ID NO: 5, SEQ ID NO: 6, SEQ ID NO: 7 or SEQ ID NO: 8, wherein the oligonucleotide is capable of hybridizing with a nucleotide sequence of Mycobacterium intracellulare gene; a primer or a probe for the detection of M. intracellulare, which comprises the aforementioned oligonucleotide; and a method for detection of M. intracellulare using the aforementioned primer and/or the probe. According to the detection method of the present invention, any false-positive result in diagnosis can be eliminated and detection or diagnosis of M.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: May 29, 2012
    Assignee: Wako Pure Chemical Industries, Ltd.
    Inventor: Tomokazu Ishikawa
  • Publication number: 20120130107
    Abstract: 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: Application
    Filed: August 5, 2010
    Publication date: May 24, 2012
    Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD.
    Inventors: Kuniaki Okamoto, Tsutomu Watahiki, Motoshige Sumino
  • Publication number: 20120130089
    Abstract: 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: Application
    Filed: August 3, 2010
    Publication date: May 24, 2012
    Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD.
    Inventors: Ayako Kuramoto, Kuniaki Okamoto, Tsutomu Watahiki, Motoshige Sumino
  • Patent number: 8178731
    Abstract: An object of the present invention is to provide a process for producing high-purity hydroxytriphenylenes in which not only inexpensive raw materials can be used but also no complicated steps of deprotection such as dealkylation, and reduction and the like are necessary, and which is thereby advantageous in industrial production. Also there is provided a novel crystal of 2,3,6,7,10,11-hexahydroxytriphenylene monohydrate, which has satisfactory thermal stability. The process for producing a compound represented by the general formula (2) is characterized by reacting a compound represented by the general formula (1) in the presence of a metal oxide comprising a metal selected from trivalent iron, pentavalent vanadium and hexavalent molybdenum and of a nonvolatile strong acid: wherein, Rs are each independently a hydrogen atom, a halogen atom, an alkyl group having 1 to 3 carbon atoms or an alkoxy group having 1 to 3 carbon atoms.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: May 15, 2012
    Assignee: Wako Pure Chemical Industries, Ltd.
    Inventors: Daisuke Takano, Tomokazu Kato, Toshihiro Fujinaka, Kazunori Sakamoto
  • Patent number: 8158375
    Abstract: It is an object of the present invention to provide the method for determining cholesterol in lipoprotein and reagent for determining cholesterol comprising the polymer, and the present invention relates to the reagent for determining cholesterol in lipoproteins such as high-density lipoprotein (HDL), low-density lipoprotein (LDL) and very low-density lipoprotein (VLDL) and the determination method using the polymer comprising the following units as constituents: (iv) a polyethylene glycol segment represented by the general formula [1]: —(CH2CH2O)k—??[1] (wherein, k represents an integer of 10 to 250); (v) a monomer unit represented by the general formula [2]: (wherein R1 represents a hydrogen atom or C1-C3 alkyl group); and (vi) a monomer unit represented by the general formula [3]: [wherein, R2 represents a hydrogen atom or C1-C3 alkyl group, and R3 represents a group represented by the general formula [4]: —COOR4??[4] (wherein, R4 represents an alkyl group, a haloalkyl group or a bornyl gro
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: April 17, 2012
    Assignee: Wako Pure Chemical Industries, Ltd.
    Inventors: Tomokazu Itai, Kiyoko Mori, Yo Yagura, Isao Koyama, Naoyuki Yamamoto
  • Publication number: 20120058520
    Abstract: An object of the present invention is to provide an inexpensive and simple method for synthesis of a double-stranded DNA corresponding to a particular RNA, and a method for amplification of the aforementioned double-stranded DNA.
    Type: Application
    Filed: May 11, 2010
    Publication date: March 8, 2012
    Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD.
    Inventor: Yukinobu Hayashida
  • Publication number: 20120059204
    Abstract: The present invention relates to a method for purifying a compound selected from a compound represented by the following general formula [1] or [2], a saturated aliphatic hydrocarbon having no substituent, or kerosene: (R represents a halogen atom or a lower alkyl group having 1 to 3 carbon atoms, and n represents an integer of 1 to 5); (R is the same as above, p and q independently represent an integer of 0 to 4, with the proviso that at least one of p and q is not 0), comprising: removing a impurity contained in said compound by a first step comprising contacting said compound with ozone gas, and then a second step comprising contacting said compound with an adsorbent selected from zeolite or a basic adsorbent.
    Type: Application
    Filed: April 30, 2010
    Publication date: March 8, 2012
    Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD.
    Inventors: Masaharu Kurooka, Tomohiro Itoh, Yuichi Makino
  • Publication number: 20120043207
    Abstract: 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: Application
    Filed: April 27, 2010
    Publication date: February 23, 2012
    Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD.
    Inventors: Naoyuki Yamamoto, Tatsuo Kurosawa
  • Publication number: 20120046474
    Abstract: Problem Provided is a novel cyanine dye derivative having high fluorescence intensity in a short wavelength region, a structure where a pyrazole skeleton and an indole skeleton are bound to a polymethine chain, and also a controllable migration velocity by further introducing a quaternary ammonium cation into a molecule having said structure.
    Type: Application
    Filed: April 27, 2010
    Publication date: February 23, 2012
    Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD.
    Inventors: Naoyuki Yamamoto, Tatsuo Kurosawa, Satoshi Hasaba, Matsuhiro Date
  • Patent number: 8113068
    Abstract: In a micro-liquid transfer apparatus including two washing tanks (first washing tanks A and B), operations to transfer a sample are carried out using two pin tools (pin tools A and B) alternately. While one pin tool A is being mounted on a pin tool holder and is being used to transfer a liquid, the other pin tool B is waiting in a state where the lower end portions of their associated pins are immersed in the first washing tank B. While one pin tool A is being mounted on a pin tool holder and is being used to transfer a very small amount of liquid, the lower end portions of the respective pins of the other pin tool are washed, whereby the liquid transfer operations can be made in progress with no interruption and thus the generation of the operation waiting time can be prevented.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: February 14, 2012
    Assignee: Wako Pure Chemical Industries, Ltd.
    Inventors: Akira Higuchi, Shirou Yamashita, Kouji Shimogawa
  • Patent number: 8110519
    Abstract: The objective is to present compositions obtained by supporting by polymers micro clusters of transition metals and the like that are useful as catalysts in various reactions and, once used, are readily recovered and reused. A polymer-supported metal cluster composition is obtained by supporting a transition metal by a cross-linked polymer, and the polymer-supported cluster composition is characterized by the cross-linked polymer obtained by cross-linking of a cross-linkable polymer containing a hydrophilic side chain and a hydrophobic side chain group having a cross-linkable functional group. This polymer-supported metal cluster composition is, for example, preferably formed by first forming a micelle composed of the metal clusters supported by the cross-linkable polymer in a suitable solution and subsequently subjecting the cross-linkable polymer to a cross-linking reaction.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: February 7, 2012
    Assignees: Japan Science & Technology Agency, Wako Pure Chemical Industries, Ltd., Fuji Photo Film Co., Ltd.
    Inventors: Shu Kobayashi, Kuniaki Okamoto, Ryo Akiyama, Keiji Ohno, Yoshio Inagaki
  • Patent number: 8105770
    Abstract: [PROBLEMS] To provide a CGH method, in particular a CGH microarray method, enabling detection at an elevated accuracy and elevated sensitivity.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: January 31, 2012
    Assignee: Wako Pure Chemical Industries, Ltd.
    Inventors: Makoto Amano, Naoyuki Yamamoto
  • Publication number: 20120009594
    Abstract: 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: Application
    Filed: March 17, 2010
    Publication date: January 12, 2012
    Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD.
    Inventor: Akito Yoneda
  • Patent number: 8093422
    Abstract: The present invention relates to a method for deuteration of a compound having an aromatic ring, using an activated catalyst, and the method comprises reacting a compound having an aromatic ring with heavy hydrogen source in the presence of an activated catalyst selected from a platinum catalyst, a rhodium catalyst, a ruthenium catalyst, a nickel catalyst and a cobalt catalyst.
    Type: Grant
    Filed: July 10, 2003
    Date of Patent: January 10, 2012
    Assignee: Wako Pure Chemical Industries, Ltd.
    Inventors: Nobuhiro Ito, Tsuneaki Maesawa, Kazushige Muto, Kosaku Hirota, Hironao Sajiki
  • Patent number: 8092830
    Abstract: A process for producing a lactic acid polymer of 15,000 to 50,000 in weight-average molecular weight, the content of polymeric materials having not more than about 5,000 in weight-average molecular weight therein being not more than about 5% by weight, characterized by hydrolyzing a high molecular weight lactic acid polymer, placing the resultant solution comprising the hydrolyzed product under a condition capable of precipitating the objective lactic acid polymer, separating the precipitated lactic acid polymer and collecting them. The lactic acid polymer is useful as a matrix for sustained-release preparations. The sustained-release microcapsule preparation encapsulating a physiologically active substance can fully prevent the initial excessive release of the physiologically active substance from the microcapsules and keep a stable release rate over a long period of time.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: January 10, 2012
    Assignees: Wako Pure Chemical Industries, Ltd., Takeda Pharmaceutical Company Limited
    Inventors: Kohei Yamamoto, Tsutomu Tani, Takashi Aoki, Yoshio Hata
  • Publication number: 20120000485
    Abstract: 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: Application
    Filed: September 14, 2011
    Publication date: January 5, 2012
    Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD.
    Inventors: Hironori Mizuta, Masahiko Kakizawa, Ichiro Hayashida
  • Patent number: 8084625
    Abstract: The present invention provides a crosslinking agent which have photodegradable protective groups at two ends to crosslink double-stranded nucleic acid, a nucleic acid and a protein or a polypeptide, or proteins or polypeptides, in particular, double-stranded RNA; a method for crosslinking a double-stranded RNA or the like using the same; a method for regulating gene expression, which can control the expression of a target gene at an arbitrary timing and location; and a method for examining a gene function. According to the present invention, crosslinking between double-stranded nucleic acids between a nucleic acid and a protein or a polypeptide, or between proteins or polypeptides, in particular, between double-stranded RNA can be easily formed, and in addition, the crosslinking can also be easily removed, so that the expression of a target gene can be easily controlled at an arbitrary timing and location with high efficiency.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: December 27, 2011
    Assignee: Wako Pure Chemical Industries, Ltd.
    Inventors: Toshiaki Furuta, Natsuyo Imaizumi
  • Publication number: 20110259746
    Abstract: To provide an electrode for a dielectrophoretic apparatus in which a background detected by reflecting an excited light on an electrode present under the substance (molecule) is reduced and an S/N ratio is enhanced. Also, there is provided an dielectrophoretic apparatus, in an apparatus in which a liquid containing substances to be separated is present in a non-uniform electric field formed by a dielectrophoretic electrode, and separation is carried out by a dielectrophoretic force exerting on the substances, wherein the collecting ability of substances is enhanced. The present invention is characterized in that a vacant space is provided in an electrode whereby substances subjected to influence by a negative dielectrophoretic force can be concentrated in said vacant space of an electrode, or above or below portion of the space.
    Type: Application
    Filed: July 1, 2011
    Publication date: October 27, 2011
    Applicant: Wako Pure Chemical Industries, Ltd.
    Inventors: Masao Washizu, Tomohisa Kawabata