Patents Assigned to Mitsubishi Chemical Corporation
  • Patent number: 5731412
    Abstract: A novel protein having inhibitory activity on the protease activity of hepatocyte growth factor (HGF) activator was purified and isolated, and its molecular weight (ca. 30,000 daltons) and partial amino acid sequence were determined. A gene coding for the protein was cloned, and the gene DNA was incorporated into a vector, for transforming host cells. Cultivation of the transformant gave the desired protein. The protein can be used as an in vivo or in vitro control factor for HGF or HGF activator. It is also useful as an antigen to be used in producing an antibody to be used as means for kinetic studies of the protein, or as a standard in assay systems therefor.
    Type: Grant
    Filed: July 24, 1996
    Date of Patent: March 24, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Takeshi Shimomura, Toshiya Kawaguchi, Naomi Kitamura
  • Patent number: 5728861
    Abstract: A bisphosphite compound of the following formula (I): ##STR1## wherein W is a substituted or unsubstituted arylene group, L is a substituted or unsubstituted alkylene or alkenylene group, X is an oxygen atom, and each of R.sup.1 to R.sup.4 which are the same or different, is a substituted or unsubstituted alkyl, aryl, alkylaryl, arylalkyl or alicyclic group, or R.sup.1 and R.sup.2, and/or R.sup.3 and R.sup.4, bond to each other to form a ring.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: March 17, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Keiichi Sato, Eitaro Takahashi, Yoshifumi Tanihara, Yasuhiro Wada
  • Patent number: 5728969
    Abstract: A granular explosive is obtained by mixing porous prill ammonium nitrate having an average particle size of 0.5 to 3.0 mm with a liquid aromatic dinitro compound and optionally a metal powder. Explosives having high sensitivity and power can be obtained by a simple and easy process.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: March 17, 1998
    Assignees: Mitsubishi Chemical Corporation, Nippon Kayaku Kabushiki Kaisha
    Inventors: Koichi Otani, Seiichi Yoshida, Yoshiyuki Ikeda, Hiroyuki Taniguchi
  • Patent number: 5726299
    Abstract: Coryneform bacteria promoter DNA fragments are disclosed. The promoter function of the promoter DNA fragments is controllable by replacing at least one of the culture-medium ingredients with at least one other ingredient. The sizes and nucleotide sequences of such promoter DNA fragments are also disclosed.
    Type: Grant
    Filed: August 1, 1994
    Date of Patent: March 10, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Thomas J. Zupancic, Hideaki Yukawa
  • Patent number: 5726340
    Abstract: The present invention relates to a method of producing an aromatic carbonate by reacting an aromatic hydroxy compound, carbon monoxide, and oxygen, wherein the reaction is carried out in the presence of a catalyst comprising:(A) at least one selected from palladium and palladium compounds;(B) at least one lead compound;(C) at least one cobalt compound; and,(D) at least one halide.According to this method an aromatic carbonate which produces only a small amount of impurities and has excellent selectivity can be produced.
    Type: Grant
    Filed: March 4, 1997
    Date of Patent: March 10, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Masatoshi Takagi, Katsufumi Kujira, Takahiro Yoneyama, Yuji Ohgomori
  • Patent number: 5726210
    Abstract: A process for the preparation of an anion exchange resin is described, which comprises reacting an aromatic crosslinked haloalkyl-containing copolymer with an amine in the presence of at least 100 parts by weight, per 100 parts by weight of the copolymer, of water and at least 5 parts by weight, per 100 parts by weight of water, of a water-soluble inorganic salt. A process for the preparation of an anion exchange resin is also described, which comprises acting a haloalkylating agent on an aromatic crosslinked copolymer, separating an unreacted portion of the haloalkylating agent from the aromatic crosslinked haloalkyl-containing copolymer so obtained, and reacting the resulting haloalkyl-containing copolymer with an amine in the presence of at least 100 parts by weight, per 100 parts by weight of the copolymer, of water and at least 5 parts by weight, per 100 parts by weight of water, of a water-soluble inorganic salt.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: March 10, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Takeshi Teraue, Youichi Tamura
  • Patent number: 5724721
    Abstract: The present invention is directed to an electrode mask for use in an electrolytic cell, and an associated process for fabricating such a cell with an electrode mask. The electrode mask is applied to a limited portion of the active material of at least one of the first and second electrodes so that the peripheral edge of the electrode mask and associated electrodes are in planer relationship with each other. In addition, the electrode mask can be applied in a manner which enables a fully fabricated electrolytic cell to be manufactured with any desired geometric configuration, merely by altering the electrode mask application pattern, and a die-cutter to cut an assembled cell in conformance with the applied pattern of the electrode mask.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: March 10, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Denis G. Fauteux, Martin Van Buren
  • Patent number: 5723253
    Abstract: Disclosed is a light-sensitive composition containing an o-quinonediazide compound, a novolak resin and a polymer,characterized in that the polymer contains a constitutional unit selected from the group consisting of constitutional units represented by the formulae (I), (II) and (III): ##STR1## wherein R.sup.1 to R.sup.12 each represent a hydrogen atom, an alkyl group or a phenyl group,and a lithographic printing plate using the same.
    Type: Grant
    Filed: December 4, 1995
    Date of Patent: March 3, 1998
    Assignees: Konica Corporation, Mitsubishi Chemical Corporation
    Inventors: Katuhiko Higashino, Tomohisa Ohta, Shinichi Matsubara
  • Patent number: 5723260
    Abstract: An unsaturated group-containing urethane compound of the following formula (I): ##STR1## wherein X is a C.sub.1-20 alkylene group which may be branched, and R.sup.1 is a group of the following structural formula (A) or (B): ##STR2## wherein each of R.sup.2 and R.sup.3 which are independent of each other, is a hydrogen atom or a methyl group, and Y is a C.sub.1-6 alkylene group which may be branched.
    Type: Grant
    Filed: September 17, 1996
    Date of Patent: March 3, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Shigeo Tsuji, Hiroshi Tomiyasu
  • Patent number: 5723569
    Abstract: A random copolymerized polyamide resin is prepared by reacting a lactam of the formula (I): ##STR1## wherein R.sup.1 is a C.sub.2-11 alkylene group optionally substituted with a substituent having 1 to 6 carbon atoms, with a hexamethylenediamine-adipic acid salt while concentrating the aqueous solution of the salt to a concentration of at least 70% by weight and while maintaining a uniform reaction phase at all times by controlling the pressure over and the temperature of the reaction medium such that the hexamethylenediamine-adipic acid salt does not precipitate, said pressure being up to not greater than 2 kg/cm.sup.2 .multidot.G and said temperature being up to not greater than 150.degree. C., and then mixing in the solution of the lactam of formula (I) thereby effecting copolymerization and forming a polyamide resin having a relative viscosity measured by the sulfuric acid solution method (1% at 25.degree. C.) of 1.5 to 8.0.
    Type: Grant
    Filed: September 13, 1996
    Date of Patent: March 3, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Shin-ichi Sato, Masaaki Miyamoto, Kenji Tsuruhara, Yoshiaki Ohtani
  • Patent number: 5721308
    Abstract: A pitch based carbon fiber, having a thermal conductivity in the direction of the fiber axis of from 500 to 1,500 W/m.multidot.K, a tensile modulus of at least 85 ton/mm.sup.2, a compression strength of at least 35 kg/mm.sup.2, a laminated layer thickness, Lc, of graphite crystallites of from 30 to 50 nm, and a ratio thereto of a spread, La, of graphite crystallites in the direction of the layer plane, of at least 1.5, has high thermal conductivity, excellent compression strength and an excellent tensile modulus of elasticity. When a cross section of said fiber in the direction of the fiber axis is observed by a polarization microscope with 1,000 X magnifications, the domain size as observed is at most 500 nm.
    Type: Grant
    Filed: June 20, 1995
    Date of Patent: February 24, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Iwao Yamamoto, Akira Nakagoshi, Akihiko Yoshiya, Kazuo Shirosaki
  • Patent number: 5720445
    Abstract: An apparatus for winding reinforcing fibers around a column is provided which comprises a non-rotatable annular frame provided around the column to be moved up and down; a rotatable annular frame provided upon the non-rotatable annular frame and arranged to be rotated around the column by a first driving motor on the non-rotatable annular frame; means provided on the rotatable annular frame for supplying reinforcing fibers around the column; at least three chain members for suspending the non-rotatable annular frame above the ground or floor level; and lift means provided at the periphery of the non-rotatable annular frame and engaged with the chain members to move up and down the non-rotatable annular frame by a second driving motors provided on the non-rotatable annular frame.
    Type: Grant
    Filed: September 26, 1996
    Date of Patent: February 24, 1998
    Assignees: Mitsubishi Jukogyo Kabushiki Kaisha, Mitsubishi Chemical Corporation, Obayashi Corporation
    Inventors: Hiroshi Sakurai, Juichi Oka, Masami Ito, Masahiko Ideguchi, Yuko Arimitsu, Hideo Katsumata
  • Patent number: 5721084
    Abstract: A charge controlling agent for electrostatic image development, which is a metallic compound of a compound of the formula (I): ##STR1## wherein each of A and R is a substituted or unsubstituted aromatic ring residue, and --O and --CONH--R are bonded to positions adjacent to each other on the aromatic ring residue A, or the formula (II): ##STR2## wherein each of A.sup.1, A.sup.2, R.sup.1 and R.sup.2 is a substituted or unsubstituted aromatic ring residue, n is an integer, and --O and --CONHR.sup.1, and --O and --CONH--R.sup.2, are bonded to positions adjacent to each other on the aromatic ring residues A.sup.1 and A.sup.2, respectively.
    Type: Grant
    Filed: December 3, 1996
    Date of Patent: February 24, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Hitoshi Ono, Noriaki Takahashi, Osamu Ando, Masako Takeuchi
  • Patent number: 5719125
    Abstract: A novel human chondromodulin-I protein having a molecular weight of about 26,000 dalton on SDS-PAGE and capable of stimulating the growth of chondrocytes with or without FGF, promoting the differential potency of these cells, and inhibiting the growth of vascular endothelial cells, a DNA encoding this protein, expression vector containing the DNA, a transformant capable of producing recombinant chondromodulin-I protein, a process for producing chondromodulin-I protein by culturing the transformant and a pharmaceutical composition containing chondromodulin-I protein as an active ingredient.
    Type: Grant
    Filed: May 11, 1994
    Date of Patent: February 17, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Fujio Suzuki, Yuji Hiraki, Kazuhiro Takahashi, Junko Suzuki, Jun Kondo, Atsuko Kohara, Akiko Mori, Ei Yamada
  • Patent number: 5719246
    Abstract: According to the present invention, there is provided an acrylic copolymer having a number average molecular weight of 1000-500,000, which comprises 1-90 % by weight of a structural unit represented by the following general formula ##STR1## (wherein R represents a hydrogen atom or a methyl group) and 99-10 % by weight of a structural unit-derived from an ethylenic unsaturated monomer, an acrylic copolymer composition and a paint containing the same.The coat obtained by applying the acrylic copolymer has excellent abrasion resistance, chemical resistance, flexibility, strength and the like.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: February 17, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yasuyuki Taniguchi, Yuji Soejima
  • Patent number: 5717014
    Abstract: A polyphenylene ether resin composition containing the following Components (A) to (D) according at the following formulation ratio.(A) 50 to 99.5 parts by weight of a polyphenylene ether(B) 0.5 to 50 parts by weight of a partially hydrogenated aromatic alkenyl compound-conjugated diene block copolymer having a hydroxy group and based on 100 parts by weight of the above resin composition,(C) 0 to 950 parts by weight of a thermoplastic resin and(D) 0 to 10 parts by weight of a phosphorous acid triester.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: February 10, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Ichiro Ohkawachi, Kiyoji Takagi, Koji Nishida
  • Patent number: 5713992
    Abstract: The present invention relates to a recording liquid characterized by comprising an aqueous medium and at least one monoazo dye selected from dyes, the free acid forms of which are represented by general formula {I}: ##STR1## (wherein R.sub.1, R.sub.2, and R.sub.3 each independently represents a substituted or unsubstituted alkyl group having 1 to 9 carbon atoms, an alkoxy group having 1 to 9 carbon atoms, a halogen atom, a hydrogen atom, a hydroxyl group, a substituted or unsubstituted carbamoyl group, a substituted or unsubstituted sulfamoyl group, a substituted or unsubstituted amino group, a nitro group, a sulfonic ester group, a sulfonyl group, a COOH group, or a carboxylic ester group;m represents a number of 0, 1, or 2; andR.sub.4, R.sub.5, R.sub.6, and R.sub.
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: February 3, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Nobuyoshi Satoh, Takashi Hirasa, Yukichi Murata
  • Patent number: 5712057
    Abstract: An electrolytic cell, such as a rechargeable lithium battery, having a poly-sulfide compound attached to the cathode provides a reversible cell capacity of at least 200 mAh/g. Fabrication of an electrolytic cell containing a poly-sulfide compound which is electronically conductive and insoluble in a liquid electrolyte.
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: January 27, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventor: Denis G. Fauteux
  • Patent number: 5712403
    Abstract: A method for producing an unsaturated alcohol having a chain structure formed by oligomerization of a conjugated alkadiene, which comprises reacting a conjugated alkadiene and water in the presence of carbon dioxide by means of a palladium compound and a phosphorus compound having at least one trivalent phosphorus-oxygen single bond, as catalyst.
    Type: Grant
    Filed: October 8, 1996
    Date of Patent: January 27, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Keiichi Sato, Yoko Seto, Iwao Nakajima
  • Patent number: 5712254
    Abstract: Sialic acid derivatives represented by the general formula (I): ##STR1## wherein R.sup.1 is a steroidal compound residue; R.sup.2 is H or alkyl;R.sup.3 is alkyl; ##STR2## wherein each of R.sup.6 and R.sup.7 is H, alkyl or the like and I is an integer of 0 to 6; or the like;X is O or S;R.sup.4 is H or acyl; and R.sup.5 is R.sup.14 O-- (R.sup.14 is H or acyl) or R.sup.15 NH--(R.sup.15 is acyl or the like);their salts, hydrates or solvates are provided.Sialic acid derivatives of the present invention are expected to be effective medicines for the prevention and therapy of senile dementia including Alzheimer's disease and the like, because they increase ChAT activity in cholinergic neurons.
    Type: Grant
    Filed: December 23, 1994
    Date of Patent: January 27, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Haruyuki Chaki, Naoko Ando, Yasuhiro Morinaka, Ken-Ichi Saito, Tomoko Yugami, Rie Yoshida