Patents Assigned to Mitsubishi Gas Chemical Co., Ltd.
  • Publication number: 20100261749
    Abstract: It is an object of the present invention to provide a safe and highly effective preventing or ameliorating agent for skin psoriasis. The present invention provides a preventing or ameliorating agent for skin psoriasis, containing, as an active ingredient, a compound represented by general formula (I) or a salt thereof: (wherein R1, R2, and R3 simultaneously or separately represent a lower alkyl, lower alkenyl, lower alkynyl, aralkyl, araryl, or phenyl group, or a hydrogen atom).
    Type: Application
    Filed: November 12, 2008
    Publication date: October 14, 2010
    Inventors: Ayako Kamimura, Toshikazu Kamiya, Masahiko Nakano, Kazutoshi Kikkawa
  • Publication number: 20090136933
    Abstract: A method and kit for electrochemically simply determining with excellent precision the amount of double-stranded DNA does not require an expensive measurement electrode, such as an immobilized enzyme electrode or any high level electrode production technique which can retain uniform surface area accuracy. A method and kit are provided for electrochemically determining the amount of double-stranded DNA in a sample solution based on a residual amount of a substance capable of binding to the double-stranded DNA which is added to the solution in excess amount, in which a buffering substance is added to a sample solution, the buffering substance being capable of allowing an oxidation wave potential of the potential-current curve for the substance capable of binding to the double-stranded-DNA determined in a solution containing the buffering substance to change depending on the concentration of the free substance capable of binding to the double-stranded DNA in the solution.
    Type: Application
    Filed: November 16, 2006
    Publication date: May 28, 2009
    Applicant: Mitsubishi Gas Chemical Co., Ltd.
    Inventor: Hitoshi Sakamoto
  • Patent number: 7534493
    Abstract: Provided is a gas-barriering coated film obtained by coating a gas barriering layer on at least one face of a flexible film or an inorganic-deposited polymer film, wherein the above gas-barriering layer is a polyurethane resin-cured material formed from a composition comprising an active hydrogen-containing compound (A) and an organic polyisocyanate compound (B), and 20% by weight or more of a skeletal structure represented by Formula (1) is contained in the above resin-cured material. The gas-barriering coated film of the present invention is excellent in various performances such as a layer-to-layer adhesive property, a gas barriering property at a high humidity, a bending resistance and a retort treating resistance in addition to a high gas barriering property, and therefore it is applied to various uses including packing materials for food and medicines to which a high gas barriering property is required.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: May 19, 2009
    Assignee: Mitsubishi Gas Chemical Co., Ltd
    Inventors: Takeshi Nomura, Takeshi Koyama
  • Patent number: 7074946
    Abstract: A method of stably producing glycidyl 2-hydroxyisobutyrate at high purity and high yield is provided. A reactive diluent is provided for an epoxy resin including the above-mentioned glycidyl 2-hydroxyisobutyrate, and an epoxy resin composition.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: July 11, 2006
    Assignee: Mitsubishi Gas Chemical Co., Ltd.
    Inventors: Takatoshi Shida, Syu Suzuki
  • Patent number: 6960640
    Abstract: The composition for optical materials of the present invention comprises a compound having in one molecule at least one structure represented by the following formula (1): wherein R1, R2, R3, R4, X, Y and n are as defined in the disclosure, an amine compound and an isocyanate compound. Resins obtained by curing the composition by polymerization are useful as well-balanced optical materials having a high impact resistance, a high refractive index and a sufficiently high Abbe's number.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: November 1, 2005
    Assignee: Mitsubishi Gas Chemical Co., LTD.
    Inventors: Yuichi Yoshimura, Motoharu Takeuchi, Kazumoto Nakagawa
  • Patent number: 6153798
    Abstract: Dimethylamine is prepared from a reaction of methanol with ammonia or monomethylamine or a disproportionation reaction of monomethylamine, in the presence of a catalyst of silica-modified crystalline silicoaluminophosphate molecular sieve or silica-modified SAPO.
    Type: Grant
    Filed: July 23, 1998
    Date of Patent: November 28, 2000
    Assignee: Mitsubishi Gas Chemical Co., Ltd.
    Inventors: Toshio Hidaka, Emiko Yokose
  • Patent number: 5547654
    Abstract: Self-adhesive carbonaceous grains for use in the production of high density carbon artifacts and high performance carbon-carbon composites are made by processes such as oxidation and heat treatment of specific mesophase pitches. The present carbonaceous grains exhibit excellent binding properties, shape stability when molded, and high density with higher carbonization yield, providing very high strength artifacts when their properties fall within the specific range of properties defined by their H/C and O/C values. High density carbon artifacts can be easily obtained by molding the grains and carbonizing or graphitizing the same.
    Type: Grant
    Filed: September 6, 1994
    Date of Patent: August 20, 1996
    Assignee: Mitsubishi Gas Chemical Co., Ltd.
    Inventors: Isao Machida, Ryuji Fujiura, Takashi Kojima, Hitoshi Sakamoto
  • Patent number: 5462804
    Abstract: A stabilized sodium percarbonate particle includes a sodium percarbonate particle having at least one coating layer thereon, wherein the at least one coating layer includes (a) a silicate; (b) magnesium sulfate; and (c) an alkali metal salt selected from the group consisting of alkali metal carbonates, alkali metal bicarbonates and alkali metal sulfate. The present sodium percarbonate particle is good in solubility and is excellent in its formulation stability with detergent.
    Type: Grant
    Filed: May 6, 1994
    Date of Patent: October 31, 1995
    Assignee: Mitsubishi Gas Chemical Co., Ltd.
    Inventors: Jun Kokubu, Yasuo Hiro, Katsuhiko Hisano, Susumu Watanabe
  • Patent number: 5463316
    Abstract: A reflection type magnetooptic sensor head is disclosed. The respective structural elements are aligned following a light source in the order of a light inputting/outputting path, polarizer, Faraday rotator, and reflecting mirror. The Faraday rotator is made of a (111) bismuth-substituted iron garnet single crystal film having [111] axis at an angle of 5-60 degrees with an axis normal to the film surface. The reflecting mirror is positioned such that a light incident upon the reflecting mirror is substantially normal to the surface of the reflecting mirror.
    Type: Grant
    Filed: June 2, 1993
    Date of Patent: October 31, 1995
    Assignee: Mitsubishi Gas Chemical Co., Ltd.
    Inventors: Kazushi Shirai, Toshihiro Shinbo, Norio Takeda, Mitsuzo Arii
  • Patent number: 5427998
    Abstract: A polycarbonate resin solution for forming a thermal-sublimating dye-receiving layer film, comprising a random copolycarbonate resin dissolved in an organic solvent, the resin having a structural unit represented by following formula (1) and a structural formula represented by following formula (2) or (3), the molar ratio of the structural unit represented by formula (1) to the structural unit represented by formula (2) or (3) being from 35/65 to 65/35, and having a number average molecular weight of from 5,000 to 50,000. ##STR1## wherein R.sup.1 to R.sup.12 each represents a hydrogen atom, a halogen atom, or an alkyl group having from 1 to 4 carbon atoms and in formula (1), A represents a straight chain, branched, or cyclic alkylidene group having from 1 to 10 carbon atoms, an aryl-substituted alkylidene group, an arylene group, or a sulfonyl group.
    Type: Grant
    Filed: June 20, 1994
    Date of Patent: June 27, 1995
    Assignee: Mitsubishi Gas Chemical Co., Ltd.
    Inventors: Toshikazu Umemura, Satoshi Kanayama
  • Patent number: 5401778
    Abstract: A biodegradable plastic composition for forming biodegradable shaped bodies which includes a poly-.beta.-hydroxybutyrate having a viscosity of n.sub.A at C. and a polycaprolactone having a viscosity of n.sub.B at C., wherein the poly-.beta.-hydroxybutyrate is present in an amount C.sub.A of 10-45 or 55-85% by weight based on the total weight of the poly-.beta.-hydroxybutyrate and the polycaprolactone, and wherein n.sub.A, n.sub.B and C.sub.A satisfy the following condition:4.times.10.sup.-3 .times.C.sub.A -1.7.ltoreq.log (n.sub.A /n.sub.B).ltoreq.4.times.10.sup.-3 .times.C.sub.A -1.3.
    Type: Grant
    Filed: April 7, 1993
    Date of Patent: March 28, 1995
    Assignees: Director-General of Agency of Industrial Science and Technology, Mitsubishi Gas Chemical Co., Ltd.
    Inventors: Yutaka Tokiwa, Akira Iwamoto, Masahiro Harada, Shigeki Imagawa, Teizi Urakami
  • Patent number: 5278853
    Abstract: A high quality small-sized polarization independent optical isolator for use in an optical fiber communication system, wherein a pair of magneto-optical elements having Faraday rotation angle of 45.+-.5 are contained in permanent magnets and arranged between a pair of birefringent crystal plates for splitting and combining an optical path of a laser light, and two polarizers arranged in parallel as being bounded on the midpoint of separated optical paths are interposed between the pair of magneto-optical elements, whereby a degree of worsening the optical isolation can be kept minimum against variations of an environmental temperature and wave length.
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: January 11, 1994
    Assignee: Mitsubishi Gas Chemical Co., Ltd.
    Inventors: Kazushi Shirai, Makoto Sumitani, Norio Takeda, Mitsuzo Arii
  • Patent number: 5173150
    Abstract: A process for producing a printed circuit board which can mainly shield electromagnetic waves generated therefrom, a printed circuit board having printed thereon printed devices, a multilayered printed circuit board, or a printed circuit board for mounting chip devices, all of which have high reliability, using a printed circuit board obtained by preparing a semicured resin-based copper-clad laminate by continuous pressing by means of a double-belt pressing method or a batch-wise continuous pressing in which one laminate is produced by press molding between a pair of hot platens, the semicured resin-based copper-clad laminate having a copper foil peel strength of 0.2 kg/cm or more, preferably 0.
    Type: Grant
    Filed: April 23, 1991
    Date of Patent: December 22, 1992
    Assignee: Mitsubishi Gas Chemical Co., Ltd.
    Inventors: Takeo Kanaoka, Norio Sayama
  • Patent number: 5118726
    Abstract: A polycarbonate resin composition for radiation sterilization, comprising an aromatic polycarbonate resin having structural units derived from a halogenated bisphenol, and a polyalkylene compound selected from poly(alkylene glycol), its ether, silyl ether or ester. Molded articles produced from the composition do not substantially undergo yellowing when exposed to radiation in air or under a substantially oxygen-free atmosphere, and can be advantageously employed in medical appliances.
    Type: Grant
    Filed: December 28, 1989
    Date of Patent: June 2, 1992
    Assignee: Mitsubishi Gas Chemical Co., Ltd.
    Inventors: Makoto Mizutani, Satoshi Nagai, Mitsuhiko Masumoto, Toshiaki Aso
  • Patent number: 5093510
    Abstract: A process for producing copper formate, which comprises subjecting methyl formate to a liquid-phase hydrolysis reaction at a temperature from 60 to C. in the presence of copper carbonate.
    Type: Grant
    Filed: December 5, 1990
    Date of Patent: March 3, 1992
    Assignee: Mitsubishi Gas Chemical Co., Ltd.
    Inventors: Takamasa Kawakami, Ryuji Fujiura, Kazuhiro Ando, Rieko Nakano
  • Patent number: 5091986
    Abstract: An optical divider for multimode optical fibers of graded-index (GI) type composed of an optical input section for securing input optical fiber, a branching section including an optical waveguide having rectangular sectional shapes irrespective of a kind of material or a method of fabricating the same and consists of a main optical waveguide and branch waveguide, and an optical output section for securing an array of output optical fibers, wherein the main optical waveguide having a width D and a length M is divided contiguously into N branch optical waveguides, preferably three or more having uniform width W, the optical waveguide having substantially uniform core thickness T is specifically related with the core diameter K of the otpical fiber to fufull the following relational formulas:0.7.ltoreq.T/K.ltoreq.0.85 (1)0.35.ltoreq.W/K.ltoreq.0.80 (2)15.ltoreq.M/D.ltoreq.70 (3)D=N.times.
    Type: Grant
    Filed: November 8, 1990
    Date of Patent: February 25, 1992
    Assignee: Mitsubishi Gas Chemical Co., Ltd.
    Inventors: Mitsuzo Arii, Norio Takeda, Shigeo Kataoka, Osamu Kondoh, Kuniaki Jinnai, Hisashi Ohwada, Tomoko Kondoh
  • Patent number: 5082402
    Abstract: A method of drilling a through-hole in a printed circuit board panel, which comprises placing a water-soluble lubricant sheet on one surface or each of two surfaces of a printed circuit board panel and drilling a through-hole through the printed circuit board panel, the water-soluble lubricant sheet being composed of a mixture of 20 to 90% by weight of a polyethylene glycol having a weight average molecular weight of not less than 10,000 with 10 to 80% by weight of a water-soluble lubricant and having a thickness of 0.05 to 3 mm.
    Type: Grant
    Filed: July 29, 1991
    Date of Patent: January 21, 1992
    Assignee: Mitsubishi Gas Chemical Co. Ltd.
    Inventors: Morio Gaku, Hidenori Kimbara
  • Patent number: 5073313
    Abstract: A process for producing a polycarbonate molded article having a low dust level from a polycarbonate resin in the form of a powder or pellets by injection molding using an injection molding machine. The injection molding machine includes a cylinder whose inner circumferential wall is made of a corrosion- and abrasion-resistant alloy from alloy components (1), (2), or (3) given below and a screw part made of a steel having a metal coating formed of hard chromium plating or hard nickel plating or formed of titanium carbide or tungsten carbide, or is made of SUS420, SUS440, Hastelloy C, or a steel of alloy component (4) given below:Alloy components (1):C: 0.5-1.5 wt%Si: 1.0-2.0 wt%B: 0.5-2.5 wt%Ni: 10.0-20.0 wt%Cr: 20.0-30.0 wt%W: 10.0-20.0 wt%Cu: 0.5-2.0 wt%Remainder: Co and unavoidable impurities,Alloy components (2):Ni: 0.0-2.0 wt%Cr: 5.0-15.0 wt%Fe: 0.0-1.0 wt%Mn: 0.1-2.0 wt%Si: 0.2-4.0 wt%B: 2.0-4.0 wt%Remainder: Co and unavoidable impurities,Alloy components (3):Cr: 5.0-10.0 wt%Co: 5.0-40.0 wt%Fe: 0.0-10.
    Type: Grant
    Filed: July 25, 1990
    Date of Patent: December 17, 1991
    Assignee: Mitsubishi Gas Chemical Co., Ltd.
    Inventors: Toshikazu Umemura, Makoto Matsumura, Toshiaki Izumida, Kazuyuki Akahori
  • Patent number: 5021541
    Abstract: A polycarbonate resin comprising either a structural unit derived from a spiro ring-containing dihydric phenol, or such a structural unit and a structural unit derived from a dihydric phenol, and a process for producing the same. The polycarbonate resin has excellent flowability and moldability, and also improved optical properties (low refractive index, large Abbe number, etc.), and can be advantageously used in various fields, e.g., as a material for molded articles for optical use and other precision molded articles.
    Type: Grant
    Filed: February 15, 1990
    Date of Patent: June 4, 1991
    Assignee: Mitsubishi Gas Chemical Co., Ltd.
    Inventors: Mitsuhiko Masumoto, Satoshi Kanayama, Toshiaki Asoh, Teruo Kawahigashi
  • Patent number: 4888401
    Abstract: A resin composition for optics is disclosed, which mainly comprises a graft copolymer comprising a styrene resin and an aromatic polycarbonate each having a specific molecular weight at a specific ratio of molecular weight and weight, said composition having a micro disperse phase of not more than 0.5 .mu.m. The resin composition has a reduced optical strain and an excellent micro disperse phase and is, therefore, suitable for use as optics.
    Type: Grant
    Filed: June 6, 1988
    Date of Patent: December 19, 1989
    Assignee: Mitsubishi Gas Chemical Co., Ltd.
    Inventors: Takao Kawaki, Yasuhiko Kijima, Yuh Miyauchi, Eizi Ukita, Toru Nakajima, Mituhiko Masumoto