Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Kureha Kagaku Kogyo Kabushiki Kaisha Patents
Assignee:
Kureha Kagaku Kogyo Kabushiki Kaisha
Address:
Tokyo, JP
No. of patents:
706
Patents:


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15










Patent Number Title Of Patent Date Issued
4451235 Process for preparing an artificial dental root May 29, 1984
An artificial dental root comprised of a particulate or powdered form of synthetic hydroxyapatite or calcined or sintered synthetic hydroxyapatite or a mixture thereof and an organic matrix, the surface area of said artificial dental root to be brought into contact with a bone being
4447578 Thermoplastic resin composition May 8, 1984
A thermoplastic resin composition having high heat resistance coupled with high impact resistance is obtained by combining a predominant amount of (A) a copolymer of methyl methacrylate, acrylonitrile, 2-isopropenylnaphthalene and .alpha.-methylstyrene, and (B) a graft copolymer of m
4446137 Cephalosporin derivative and pharmaceutical composition containing the derivative May 1, 1984
A compound having the general formula (I) is derived from a cephalosporin; ##STR1## wherein R' is a hydrogen atom, an alkyl group having 1 to 4 atoms or an alkali metal and R is --CH.sub.2 COOR', --CH.sub.2 CH.sub.2 SR', ##STR2## or --CH.sub.2 CH.sub.2 COOR' wherein R' is defined
4445964 Apparatus for manufacturing a string construction May 1, 1984
A process for manufacturing a string construction having a core thread and a network thread around them by extruding thread-like molten resin streams from an extruding apparatus in which an inner spinneret formed with grooves at the outer circumferential surface is rotatably mounted to a
4443366 Gel chromatography material April 17, 1984
A mixture of water-soluble substances, particularly a mixture of proteins, a mixture of enzymes or a mixture of water-soluble vitamins, is fractionated by subjecting an aqueous solution of said mixture of water-soluble substances to gel chromatography through a filter bed of a cross-
4442262 Composition of polyester-block copolymer April 10, 1984
Disclosed herein is a composition of a polyester-block copolymer, comprising 5 to 80% by weight of at least one kind of graft-copolymer obtained by graft-copolymerizing 50 to 25 parts by weight of a monomeric mixture predominantly consisting essentially of styrene and methyl methacry
4442093 Method for administering 24,25-dihydroxycholecalciferol to persons suffering from hypercalcemia April 10, 1984
Pharmaceutical composition in dosage unit form, comprising a therapeutically effective amount of 24,25-dihydroxycholecalciferol and a pharmaceutically acceptable carrier. The compound of 24,25-dihydroxycholecalciferol has anti-hypercalcemic activity, anti-ulcer activity, activity of
4440757 Pharmaceutical composition comprising derivative of aminobenzoic acid for regulating prostagland April 3, 1984
A pharmaceutical composition for regulating prostagrandins, which comprises (a) a derivative of aminobenzoic acid, represented by the following general formula: ##STR1## wherein R.sup.1 denotes one member selected from the group consisting of the residual groups formed by removin
4439811 Capacitor March 27, 1984
The capacitor contains a film layer comprising essentially a vinylidene fluoride resin and a coating layer composed of a mixture of the vinylidene fluoride resin and a polymer substantially incompatible with the vinylidene fluoride resin and having a critical surface tension of 30 dy
4439434 Cephalosporin derivative and pharmaceutical composition containing the derivative March 27, 1984
A compound having the general formula (I) is derived from a cephalosporin; ##STR1## wherein R' is a hydrogen atom, an alkyl group having 1 to 4 carbon atoms or an alkali metal.A pharmaceutical composition containing the compound is excellent in an antibacterial activity, the activity
4438021 Catalyst for dehydrocoupling of toluene or xylene March 20, 1984
Disclosed herein is a catalyst suitable for dehydrocoupling of toluene or xylene, represented by the general formula (I):wherein M represents yttrium, zinc or zirconium; a denotes a number in a range of 0.25 to 5, b denotes 1, and c denotes a number necessary for fulfilling the respectiv
4435475 Dielectric film March 6, 1984
A film prepared by molding a resin compound of a polyvinylidene fluoride admixed with a polycarbonate and/or a thermoplastic polyester and stretching into at least one direction is disclosed. The film shows excellent dielectric properties.
4434209 Capacitor February 28, 1984
Capacitor having layers of dielectric material containing at least one oriented film prepared by molding a resin composition comprising polyvinylidene fluoride, polycarbonate and/or thermoplastic polyester into un-stretched film and stretching the thus molded un-stretched film as at
4434206 Shaped articles of porous carbon fibers February 28, 1984
Disclosed herein are shaped articles of porous carbon comprising carbon fibers having a compression strength of higher than 50 kg/cm.sup.2 and a porosity of 50 to 80%, in which radii of not less than 60% of the pores are distributed in a range wherein the difference between the upper por
4434172 2-Substituted-phenyl-5-alkylthiazolidine-4-one February 28, 1984
Compounds of 2-substituted-phenyl-5-alkylthiazolidine-4-one having the formula (I) ##STR1## wherein R.sup.1 and R.sup.2 represent respectively a lower alkyl group of 1 to 3 carbon atoms and n denotes an integer of 1 to 3 possess anti-peptic ulcer activity.
4433299 Method and apparatus for measuring interfacial electrokinetic phenomena February 21, 1984
A method and apparatus are disclosed for measuring interfacial electrokinetic phenomena such as electrophoresis by applying stationary electric field to a sample, wherein the voltage between two points in the sample other than the electrodes for an electric current application is det
4432457 Article selection apparatus February 21, 1984
An article selection apparatus is disclosed having a first conveying device for conveying an article along a path and a second conveying device for receiving the article at an entrance end spaced apart by a predetermined distance from a conveying end of the first conveying device and for
4431772 Vinyl chloride resin composition February 14, 1984
A latex of a highly crosslinked butadiene rubber polymer comprising not less than 50% of butadiene, 1.0 to 10% of a crosslinking agent and a remainder of an ethylenically unsaturated monomer copolymerizable with butadiene, and having a particle size of 600 to 3,000 .ANG. and a degree
4428873 Electrooptical element January 31, 1984
An electrooptical solid element comprises a formed resin composition comprising a low molecular polar substance having a Kerr type electrooptical effect, and an organic polymer substance compatible with the low molecular polar substance. The formed resin composition is prepared by a
4424243 Heat-shrinkable laminate film January 3, 1984
A heat-shrinkable multilayer laminate film possessing excellent heat resistance, oil resistance and gas-barrier properties is obtained by interposing one intermediate layer of a thermoplastic resin having a crystalline melting point of from 70.degree. to 100.degree. C. between a core
4423259 Process for producing phenyl-[3,3,3-trifluoropropyl)phenyl]methane December 27, 1983
Novel trifluoropropyl-substituted aryl- or aralkylbenzene of the formula: ##STR1## wherein R is a not-substituted or ring-substituted phenyl-, benzyl-, phenethyl- or alpha-methylbenzyl group by one 3,3,3-trifluoropropyl group, and n is an integer of 1,2 or 3, provided that the total
4420443 Method for producing spherical particles of carbon and of activated carbon December 13, 1983
A method for producing spherical particles of carbon and of activated carbon is described, in which a mixture of a pitch and a viscosity-reducing agent is melt-extruded into a form of string-like bodies, the thus obtained string-like bodies are broken into stick-like bodies of a leng
4420339 Collagen fibers for use in medical treatments December 13, 1983
Disclosed herein are collagen fibers for use in medical treatments, having amino acid residues of 312 to 340 glycine residues, 119 to 138 proline residues, 94 to 100 hydroxyproline residues and 2.6 to 5.5 tyrosin residues per 1000 total amino acid residues thereof, a denaturation tem
4419854 Automatic continuous vacuum packaging method and apparatus December 13, 1983
A vacuum packaging method and apparatus for packaging solid objects such as food products of various shapes automatically. A web of tubular plastic film is supplied from a roll and drawn over an opening core which opens the plastic film into a rectangular shape. The film is then drawn ov
4416784 Filling composition for use in liquid chromatography November 22, 1983
Disclosed herein is a bead-like substance comprising a hydroxymethylated copolymer of styrene and divinylbenzene having a serum protein adsorbed or adhering thereonto, suitable for filling the column used in liquid chromatography in the field of analysis, particularly in clinical exa
4413095 Vinylidene fluoride resin-based shaped product November 1, 1983
A vinylidene fluoride resin composition is obtained by mixing into a vinylidene fluoride resin a copolymer of a monomer (A) having the formula: ##STR1## wherein R.sub.1 is H or CH.sub.3, and X.sub.1 and X.sub.2 are each a saturated hydrocarbon group containing from 1 to 4 carbon atom
4413090 Cyanoethylated olefin-vinyl alcohol copolymer and dielectric material and adhesive comprising th November 1, 1983
A cyanoethylated resin to which adhesive properties and high dielectric constant are imparted by cyanoethylating a C.sub.2 -C.sub.4 olefin-vinyl alcohol copolymer, which is suitable for use as a dielectric material and an adhesive.
4412147 Ultrasonic holography imaging device having a macromolecular piezoelectric element transducer October 25, 1983
An ultrasonic image device such as may be used in a holography system or scanning system and having a piezoelectric transducer in which the conversion efficiency and phase are substantially constant over a wide frequency range. A piezoelectric sheet 5 .mu.m to 1000 .mu.m thick is used
4409240 Derivatives of dihydroxybenzoic acid and pharmaceutical composition thereof October 11, 1983
A novel derivative of dihydroxybenzoic acid represented by the formula (I) ##STR1## wherein R represents ##STR2## or a salt or an ester thereof which has specific pharmacological activities, a method for preparing thereof and a pharmaceutical composition comprising thereof as
4407887 Polyvinylidene fluoride film having superior dielectric strength and a process for producing the October 4, 1983
A polyvinylidene fluoride film having a high dielectric strength of at least 10 MV/cm at room temperature and at least 8 MV/cm at 100.degree. C. and a process for producing the same.
4407799 2-Substituted-phenyl-1,3-perhydrothiazine-4-one October 4, 1983
Compounds of 2-substituted-phenyl-1,3-perhydrothiazine-4-one having the formula (I) ##STR1## wherein R represents a lower alkyl group of 1 to 3 carbon atoms and n denotes an integer of 1 to 3 possess anti-peptic ulcer activity.
4406967 Ultrasonic probe September 27, 1983
The ultrasonic probe of this invention contains a uniaxially elongated polymer piezoelectric element in which the piezoelectric element provided at the both sides with a thin layer electrode is disposed such that at least one of the electrodes is divided into long and small electrode
4405824 Process for producing aryl- or aralkylbenzene having two benzene rings at least one of which is September 20, 1983
Novel trifluoropropyl-substituted aryl- or aralkylbenzenes of the formula: ##STR1## wherein R is a not-substituted or ring-substituted phenyl-, benzyl-, phenethyl- or alpha-methylbenzyl group by one 3,3,3-trifluoropropyl group, and n is an integer of 1, 2 or 3, provided that the tota
4404171 Tower for drying gaseous chlorine September 13, 1983
The present invention relates to a tower for drying gaseous chlorine, in which a high polymeric composite material containing carbon fibers and electroconductive carbon black as the whole or a part of the reinforcing material and the material for giving electroconductivity is used as a w
4404133 Peptides and method for synthesizing the same September 13, 1983
Disclosed herein are the peptides possibly radio-labelled and having primary structures represented by the general formula (I):wherein(1) X is H-Tyr-Gln-Ala-Lys and Y is a hydroxyl group,(2) X is pGlu-Ala-Lys(N.sup..epsilon. -Tyr-H) and Y is a hydroxyl group, or(3) X is pGlu-Ala-Lys and Y is Tyr
4401806 Process for producing graft copolymer August 30, 1983
A powdery graft copolymer is obtained by a process characterized in that a graft copolymer latex obtained by graft-polymerizing hard-polymer-giving monomers to an elastic trunk polymer is mixed, after the coagulation of the latex or in the presence of a coagulant, with an organic liquid
4401592 Pharmaceutical composition having antitumor activity August 30, 1983
Disclosed is a novel pharmaceutical composition having antitumor (anti-cancer) activity without causing pyrexia and anaphylaxis, formed by an amide bonding between an antibody obtained by the purification of the antibody to tumor (cancer) antigen via affinity-chromatography and an an
4398944 Herbicidal composition and method for inhibiting growth of weeds August 16, 1983
A herbicidal composition comprising a herbicidally effective amount of a compound of the formula ##STR1## wherein R is methoxy, ethoxy, propoxy, isopropoxy or allyloxy and an agriculturally acceptable carrier and a method for inhibiting growth of weeds comprising applying the her
4396785 3,3,3-Trifluoropropyl derivatives of naphthalene or methylnaphthalene and process for preparing August 2, 1983
Novel 3,3,3-trifluoropropyl derivatives of naphthalene or methylnaphthalene of the general formula ##STR1## wherein R.sup.1 and R.sup.2 respectively represent hydrogen atom or methyl group, with the proviso that R.sup.1 and R.sup.2 do not simultaneously represent methyl group; m
4395362 Electroconductive resin composite material for molding July 26, 1983
An electroconductive resin composite material for molding having excellent mechanical strength and electrical properties. The resin comprises 100 parts by weight of polypropylene, from 10 to 50 parts by weight of a modified polypropylene obtained either by chemically modifying polypr
4391763 Process for the manufacture of halogen-containing resin particles of larger bulk density compris July 5, 1983
This invention relates to a compactingly processing method for the manufacture of spherical particles, having a heavier apparent specific gravity, of halogen-containing ethylene resin. In this method, 100 wt. parts of particles of the resin are mixed with 20-500 wt. parts of one or m
4389445 Data recording sheet June 21, 1983
A data recording sheet in which data signals are stored in a polarizable macromolecular material sheet layer with polarization different locally in the direction of the surfaces of said sheet layer. The sheet layer causes pyroelectric or piezo-electric polarization through polarization
4389387 Method for preparing carbon fibers June 21, 1983
The present invention relates to a method for preparing carbon fibers from a pitch by melt-spinning the pitch, infusibilizing the pitch fibers with a mixture of air and a gaseous oxidizing agent in an infusibilizing furnace divided into at least two chambers arranged in series under the
4387102 4-(N-(3',4'-Methylenedioxybenzylidene)-aminomethyl)cyclohex ane-1-carboxylic acid and derivatives June 7, 1983
A novel compound of 4-[N-(3',4'-methylenedioxybenzylidene) aminomethyl]cyclohexane-1-carboxylic acid or a pharmaceutically acceptable salt or an C.sub.1 -C.sub.4 alkyl ester thereof which has specific pharmacologic activities, a method for preparing thereof and a pharmaceutical compo
4386168 Organic friction material May 31, 1983
Disclosed herein is an organic friction material comprising 5 to 25% by volume of metallic fiber, 3 to 40% by volume of activated carbon, 3 to 15% by volume of carbon fiber, 7 to 47% by volume of an organic or inorganic filling material and 10 to 30% by volume of phenolic resin.
4384078 Antistatic resin composition May 17, 1983
A graft copolymer is obtained by graft-polmerizing a vinyl or vinylidene monomer onto a rubber trunk polymer which comprises a polyalkylene oxide monomer comprising 4 to 500 alkylene oxide groups together with an ethylenic unsaturation, and a conjugated diene and/or an alkyl acrylate.Thi
4383706 Pressure-sensitive recording paper May 17, 1983
A pressure-sensitive recording paper exhibiting excellent properties even under severe environmental conditions such as high temperature and high humidity or low temperature is offered, the pressure-sensitive recording paper comprising a paper sheet coated with microcapsules containing
4383705 Pressure-sensitive recording material May 17, 1983
There are provided a solvent for pressure-sensitive recording material, which comprises a mixture of 1-isopropylphenyl-2-phenylethane with diisopropylnaphthalene and/or partially hydrogenated terphenyl, and a pressure-sensitive recording material, a sheet of which is coated with micr
4382955 Derivative of 4-(N-(3,4-dihydroxybenzylidene) aminomethyl cyclohexane-1-carboxylic acid May 10, 1983
A novel compound of 4-[N-(3',4'-dihydroxybenzylidene) aminomethyl]cyclohexane-1-carboxylic acid or a salt or an ester thereof which has specific pharmacologic activities, a method for preparing thereof and a pharmaceutical composition comprising thereof as an active ingredient are pr
4380614 Suspension polymerization of haloethylene compound April 19, 1983
A suspension polymerization of a haloethylene compound or a mixture of a haloethylene compound and a comonomer thereof is carried out in an aqueous medium containing a suspending agent and an oil soluble catalyst, by coating or incorporating at least one of a water soluble or organic
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

 
 
  Recently Added Patents
Charged-particle beam lens
Tool box
Gyroscope utilizing torsional springs and optical sensing
X-ray imaging
Vehicle location information-based abnormal driving determination and warning system
Differentiated PSIP table update interval technology
Photoacoustic joulemeter utilizing beam deflection technique
  Randomly Featured Patents
Light fixture management system
Low-voltage male connector
Television set
Fog lamp
Nanoparticulate compositions comprising amorphous cyclosporine and methods of making and using such compositions
2-Trifluoromethylimino-1,3-dithiolo [4,5-b]-quinoxalines
Golf simulator
Multilayer photographic material
Method for modifying a turbine diaphragm for use with a reduced rotor lan diameter
Integrated cell balancing system, method, and computer program for multi-cell batteries