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Assignee: Tosoh Corporation


Location: JP
No. of patents: 26

NumberTitleIssue Date
6108607Method of rate calculation
A method of rate calculation in which, in connection with a reaction in which the substrate of an enzyme undergoes the action of the enzyme to be converted to a reaction product, a signal correlated to the concentration of the reaction product is measured...
08/22/2000
6087285Zirconia sintered body, process for production thereof, and application thereof
A novel zirconia sintered body is provided which contains Y2 O3 in a solid solution state, and has tetragonal crystal grains oriented at an orientation degree of not higher than 45%. A process for producing the zirconia sintered body...
07/11/2000
6057482Process for producing benzyl acetate and benzyl alcohol
Benzyl alcohol of high purity is produced by supplying benzyl acetate, water and acetic acid to a hydrolysis reactor packed with a solid acid catalyst. The liquid reaction mixture produced, which contains benzyl acetate, water, benzyl alcohol and acetic a...
05/02/2000
6043032Method of extracting nucleic acids and method of detecting specified nucleic acid sequences
An improved method of extracting nucleic acids from a sample comprising mixing the sample with a carrier which is at least one member selected from the group consisting of dextran, acrylamide and carboxymethyl cellulose to form a liquid mixture; mixing sa...
03/28/2000
6036939Heat-resistant low-silica zeolite, and process for production and application thereof
A novel heat-resistant low-silica zeolite, an industrial production process, and uses of the low-silica zeolite are provided. The heat-resistant low-silica zeolite contains Si and Al in a molar ratio of SiO2 /Al2 O3 rangin...
03/14/2000
6033620Process of preparing high-density sintered ITO compact and sputtering target
A sintered ITO compact is provided which is capable of retarding nodule formation, or particle generation. The sintered ITO compact is composed of In, Sn, and O, and has avelage length of void size of not larger than 0.7 μm. This sintered ITO compact is ...
03/07/2000
6030115Method of measuring melting temperature of nucleic acid
A method of measuring a melting temperature of a nucleic acid, which comprises a step of monitoring the fluorescent intensity of a mixture of a sample and a probe which is labeled with a fluorescent intercalative dye and contains a base sequence complemen...
02/29/2000
6030914Zirconia fine powder and method for its production
A zirconia fine powder consisting of primary particles having a BET specific surface area of from 40 to 200 m2 /g and a mean particle size of at most 0.1 μm as measured by an electron microscope, wherein the ratio of the mean particle size as ...
02/29/2000
5980815Process for producing ITO sintered body
An indium oxide-tin oxide (ITO) sintered body is prepared by mixing a tin oxide powder with an indium oxide powder, molding the resulting mixed powder to obtain a green body, and sintering the resulting green body. At least the tin oxide powder has before...
11/09/1999
5958227Liquid chromatograph apparatus with a switching valve
A liquid chromatograph apparatus has a precolumn and an analyzing column which are connected through a 8-port-two-position-switching valve wherein the switching valve is capable of switching between two movable positions wherein a flow path for a solvent ...
09/28/1999
5929281Process for producing heterocyclic aromatic amine or arylamine
A heterocyclic aromatic halide or an aryl halide is reacted with an amine compound in the presence of a base to give a heterocyclic aromatic amine or an arylamine, respectively. In this reaction, a catalyst comprising a palladium compound and a tertiary p...
07/27/1999
5929153Vinyl chloride-based polymer-polyurethane composite and method of producing the same
Disclosed are a vinyl chloride-based polymer-polyurethane composite comprising vinyl chloride-based polymer (1), polyurethane, plasticizer (4), metal salt of higher fatty acid (6) and hydrocarbon-based lubricant (7), the metal of metal salt of higher fatt...
07/27/1999
5905177Method for producing 1,2-dichloroethane
In a method for producing 1,2-dichloroethane by an oxychlorination reaction of ethylene, hydrogen chloride and oxygen, a continuous method for producing 1,2-dichloroethane, which comprises cooling a gas discharged from an oxychlorination reactor to conden...
05/18/1999
5898083Sodium styrenesulfonate hemihydrate, composition thereof, and process for production thereof
A sodium styrenesulfonate hemihydrate is provided. This novel sodium styrenesulfonate hemihydrate solves the problems involved in conventional sodium styrenesulfonate such as decrease of effective component by polymerization during storage and transportat...
04/27/1999
5810914Flame-retardant engineering plastic composition
A flame-retardant engineering plastic composition comprising (A) 100 parts by weight of an engineering plastic, (B) from 1 to 30 parts by weight of a heat-expandable graphite, and (C) from 1 to 30 parts by weight of red phosphorus and/or (D) from 1 to 30 ...
09/22/1998
5766471Mounting structure of filter of solenoid valve
It is a solenoid valve used in hydraulic control. Inside a body 4, a clip plate 11 is provided at the side of an inlet 5. The clip plate 11 is formed integral by a circular support portion 12 and three retaining pawls 13 extending toward its center. On th...
06/16/1998
5700419Process for producing sintered ITO compact
A sintered ITO compact having an ultra-high density of at least 7.08 g/cm3 is produced by a process wherein an aqueous slurry comprised of indium oxide, tin oxide, a binder, a dispersant and an aqueous medium is cast in a mold, and the thus-obt...
12/23/1997
5684122Composite material and process for production thereof
A transparent N-alkyl-substituted maleimide/olefin copolymer composite material is provided which comprises 100 parts by weight of an N-alkyl-substituted maleimide/olefin copolymer, and 0.1 to 100 parts by weight of phyllosilicate, the phyllosilicate bein...
11/04/1997
5630918ITO sputtering target
An ITO sputtering target comprised of indium oxide and tin oxide and having a density of at least 6.4 g/cm3, wherein the center line average height (Ra) of the surface to be sputtered is not larger than 0.8 μm, and at least one prop...
05/20/1997
5580928Resin composition
A resin composition is disclosed which comprises: (a) from 1 to 99% by weight of a maleimide-olefin copolymer comprising from 40 to 60 mol % of structural unit (I) shown below and from 60 to 40 mol % of structural unit (II) shown below and having a number-aver...
12/03/1996
5536798Optical material
An optical material, comprising a resin composed of a polymer constituted of a first structural unit composed of at least one of the compounds represented by the formula (I), and of a second structural unit composed of at least one of the compounds repres...
07/16/1996
5412046Polyethylene and method of production thereof
A polyethylene, having 1 to 60 methyl branches and 1 to 60 hexyl or higher branches per 1000 carbon atoms, a g-value of 0.5 to 0.8, and a limiting viscosity [η] of 0.005 to 20.0 dl/g as measured at 140° C. in o-dichlorobenzene, and a method for producin...
05/02/1995
5212043Photoresist composition comprising a non-aromatic resin having no aromatic structures derived from units of an aliphatic cyclic hydrocarbon and units of maleic anhydride and/or maleimide and a photosensitive agent
A photoresist composition comprising: a resin soluble in an aqueous alkaline solution, having units of an aliphatic cyclic hydrocarbon main frame and units derived from maleic anhydride and/or units derived from a maleimide; and a photosensitive agent in a suf...
05/18/1993
5061633Method for analyzing lipid peroxides using aromatic phosphines
A method for analyzing a lipid peroxide, which comprises reacting a lipid peroxide with an aromatic phosphine compound of the formula: ##STR1## wherein each of R1 to R3 is an aromatic group, in a solvent, to form an aromatic pho...
10/29/1991
5026941Y zeolite catalyst
A catalyst comprising a Y zeolite of which silica/alumina molar ratio ranges from 15 to 110, use of this catalyst for alkylation of monoisopropylnaphthalene and a method for preparation of this catalyst comprising treating a Y zeolite with an acid(s) to a...
06/25/1991
5006501Amine catalyst for forming fine-cell rigid polyurethane foam
A fine-cell rigid polyurethane foam is prepared by reacting a polyol having a blowing agent such as water incorporated therein with a polyisocyanate in the presence of an amine catalyst having a retarding effect. The amine catalyst is comprised of (a) 30 ...
04/09/1991
 
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