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Tokuyama Corporation Patents
Assignee:
Tokuyama Corporation
Address:
Shunan-shi, Yamaguchi, JP
No. of patents:
234
Patents:


1 2 3 4 5










Patent Number Title Of Patent Date Issued
D588906 Package March 24, 2009
8569206 Porous carbon material and a method of production thereof October 29, 2013
Disclosed is a method for producing a porous carbon material comprising: heating a cured phenolic resin complex lump, including 150 to 450 parts by weight of sodium hydroxide and/or potassium hydroxide per 100 parts by weight of phenolic resin, at a temperature of 420 to 850.degree. C. i
8299145 Method of producing a vinyl chloride resin formed article October 30, 2012
A method of producing a nonfoamed formed article of a vinyl chloride resin by mixing a hydrated water-containing gypsum powder and a vinyl chloride resin powder together, and heating the obtained mixture at a temperature lower than a temperature at which the vinyl chloride resin star
8282904 Cylindrical vessel made of carbon and process for making silicon October 9, 2012
A cylindrical vessel made of carbon is used in the production of silicon. The inner surface of the vessel comes into contact with a silicon melt, wherein the permeation with silicon melt is reduced, formation of SiC is suppressed, and the vessel is resistant to deformation even when
8258313 Compound having hydantoin ring and method of producing the same September 4, 2012
A method of selectively producing the syn-isomer of a compound having a hydantoin ring, which is important as an optical material, an electronic material, an active ingredient and an intermediate of medicines and pesticides and an active ingredient and an intermediate of diagnostics,
8242042 OH-type anion-exchange hydrocarbon-based elastomer, use and production method thereof August 14, 2012
The present invention aims at providing an optimal constitution and production method for an OH-type anion-exchange hydrocarbon-based elastomer used when manufacturing a catalyst electrode layer of a solid polymer type fuel cell, in view of a balance of stability, durability and flex
8238391 P-type group III nitride semiconductor and group III nitride semiconductor element August 7, 2012
This invention provides a p-type group III nitride semiconductor, with good p-type properties, having a composition expressed by Al.sub.XGa.sub.YIn.sub.ZN in which each of X, Y and Z indicates a rational number satisfying a relationship of X+Y+Z=1.0, even if Al content is as high as
8232325 Separation membrane for direct liquid fuel cell and method for producing same July 31, 2012
In the present invention is disclosed a method for producing a membrane for direct liquid fuel cell, which comprises polymerizing and curing a polymerizable composition containing at least a) an aromatic polymerizable monomer wherein one polymerizable group, at least one hydrogen a
8153194 Method for producing laminate April 10, 2012
The invention intends to provide a method for preventing deterioration in quality of the primer layer resulting from spinning-off and reattachment of a primer liquid on forming a polyurethane primer layer on a substrate for an eyeglass lens or the like using a coating composition contain
8148283 Aluminum nitride sintered body April 3, 2012
A high-purity aluminum nitride sintered body is provided by efficiently removing oxides contained in a raw material powder in producing an aluminum nitride sintered body and preventing composite oxide produced by reaction of oxides contained in the raw material powder with a sintering
8148030 Separation membrane for fuel cell and production method thereof April 3, 2012
Disclosed is a process for producing a diaphragm for a fuel cell comprising a modified anion exchange membrane that substantially maintains durability and hydroxide ion conductivity as an electrolyte membrane and has improved resistance to methanol permeation. The process is characte
8147726 Chromene compound April 3, 2012
A chromene compound represented by the following formula (1): ##STR00001## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, m, and n are defined in the specification. The chromene compound is rarely deteriorated by exposure.
8138428 Lead-embedded metallized ceramics substrate and package March 20, 2012
A metallized ceramics substrate including: a ceramics body; a wiring pattern formed on one surface of the ceramics body; and a lead electrically-connected to the wiring pattern. The ceramics body has a through-hole, the lead penetrates the through-hole and sticks out from another sur
8137861 Diaphragm for direct-liquid fuel cell and process for producing the same March 20, 2012
The present invention discloses a membrane for direct-liquid fuel cell, comprised of a layered cation-exchange membrane whose one side is constituted by A) a cation-exchange membrane layer of low water content type having a water content of 1 to 15% by mass at a relative humidity of
8137825 Aluminum nitride single crystal film, aluminum nitride single crystal multi-layer substrate and March 20, 2012
In a method of manufacturing an aluminum nitride single crystal film on a substrate by heating a sapphire substrate in the presence of carbon, nitrogen and carbon monoxide, an aluminum compound which differs from the raw material sapphire substrate and the formed aluminum nitride single
8137503 Stripping liquid for use in separating paper from plaster/paper laminate March 20, 2012
A stripping liquid of the present invention is used for separating the paper from a plaster/paper laminate such as waste plasterboard, and comprises an aqueous solution of an alkali metal salt or an ammonium salt of carboxylic acid. The stripping liquid is fed onto the surface (paper
8129208 n-Type conductive aluminum nitride semiconductor crystal and manufacturing method thereof March 6, 2012
This invention provides a self supporting substrate which consists of a n-type conductive aluminum nitride semiconductor crystal and is useful for manufacturing the vertical conductive type AlN semiconductor device. The n-type conductive aluminum nitride semiconductor crystal, by which
8124041 Process for producing silicon February 28, 2012
A process for producing silicon comprises the steps of a reduction step [1] of depositing silicon by reacting chlorosilanes and hydrogen in a reactor under heat and discharging an exhaust gas that contains hydrogen, oligomers of silanes, and a silicon powder; a carring step [2] of ca
8123987 Chromene compounds February 28, 2012
Disclosed is a chromene compound represented by the following formula (1), ##STR00001## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are, respectively, hydrogen atoms, alkyl groups, aryl groups, or the like groups under a condition that at least two of R.sup.1 to R.sup.4 are not h
8115114 Ceramic substrate manufacturing method and ceramic substrate February 14, 2012
A method for manufacturing a ceramic substrate having a via hole(s) and a surface wiring pattern electrically connected to the via hole(s). The method includes: preparing a sintered ceramic substrate having a via hole(s); forming over the sintered ceramic substrate a sintered ceramic
8087378 Apparatus for coating lenses January 3, 2012
To provide a coating apparatus capable of automatically executing a series of steps of measuring the shape of a lens and applying a primer solution thereon, drying the primer solution and applying a photochromic coating solution thereon, and curing the coated solutions by the UV irra
8087377 Coating apparatus January 3, 2012
The present invention provides a coating apparatus which can form a stable photochromic coating film. In the invention, a centering device, a lens height measuring device, a primer fluid applicator device, a primer spinning device, a drying device, a photochromic fluid applicator device,
8087376 Coating apparatus January 3, 2012
The present invention has as an object to provide a coating apparatus for forming a coating film on each of many lenses in a short time. To attain this object, in the coating apparatus for a lens according to the invention, a lens support portion of a lens centering device, a lens su
8071187 Method for fabricating metallized ceramics substrate, metallized ceramics substrate fabricated b December 6, 2011
A fabrication method for metallized a ceramics substrate including the steps of: forming a first conductive paste layer containing metallic powder on a sintered ceramics substrate; forming a second conductive paste layer containing metallic powder of which average particle diameter i
8066917 Photochromic curable composition November 29, 2011
Disclosed is a photochromic curable composition comprising [A] not less than 0.1 part and less than 5 parts by mass of a specific radically polymerizable monomer having an epoxy group, [B] 1.0 to 15 parts by mass of a specific polyfunctional radically polymerizable monomer, [C] 1.0 to
8034493 Ion exchange membrane and production process therefor October 11, 2011
There is provided an ion exchange membrane and preparation process thereof. The membrane has a porous film layer having pores with an average pore diameter of 0.01 to 2 .mu.m and a surface layer existent on at least one side of the porous film. The pores of the porous film layer are
8012596 Photochromic lens substrate September 6, 2011
A polymerization curable composition comprising a specific polyfunctional polymerizable monomer having a hard molecular structure with an L-scale Rockwell hardness of its homopolymer of 60 or more, a specific polyfunctional polymerizable monomer and a photochromic compound, a photoch
7988867 Method of treating silicon powder-containing drainage water August 2, 2011
A method of treating silicon powder-containing drainage water, comprising the steps of: including an inorganic flocculant composed of a silica sol-water-soluble metal salt having a molar ratio of silicon to metal of 0.05 to 3.0 into drainage water containing silicon powders to ensure t
7988866 Method of treating fumed silica-containing drainage water August 2, 2011
In a process for treatment of powdery fumed silica, fumed silica to be discarded is collected by dispersing the fumed silica in water. Disclosed is a method for treatment of a fumed silica-containing wastewater collected in the process. The method comprises the steps of: adding an in
7985392 Cake of easily dispersible precipitated silica July 26, 2011
An easily dispersible cake of precipitated silica, wherein the precipitated silica has a BET specific surface area of at least 220 m.sup.2/g. When the cake is dispersed in ion-exchange water to provide an aqueous dispersion of the silica of 5% by weight in concentration and further d
7976739 Chromene compound July 12, 2011
A chromene compound represented by the following formula (1), ##STR00001## wherein, "A" is an annulated ring, R.sup.1 and R.sup.2 are hydrogen atoms, hydroxyl groups or the like groups, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are substituents such as hydroxyl groups or the like gro
7973481 Nitride sintered body and method for manufacturing thereof July 5, 2011
An insulating material high both in thermal conductivity and light reflectance, and a submount high in heat radiatability for mounting an LED element thereon, capable of raising a light utilization factor and quickly radiating heat generated from the element. For example, used as a s
7964541 Lubricant composition for polishing a magnetic head with fixed abrasive grains June 21, 2011
Composition comprising 0.001-4.999 parts by mass of an organic onium salt e.g. tetraoctylammonium.cndot.bis(trifluoromethanesulfonyl)imide of formula (I): ##STR00001## wherein Z is N or P, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently C.sub.4-C.sub.20-hydrocarbon, pr
7960915 Cement for bonding an aluminum nitride arc tube body to a molybdenum electrode support, articles June 14, 2011
A cement for bonding an arc tube body made of an aluminum nitride sintered body and an electrode support made of molybdenum achieves high gas tightness in the obtainable arc tube without impairing the excellent translucency of the aluminum nitride sintered body. The cement contains a
7959728 Mesoporous silica particles and production process thereof June 14, 2011
A process for wet pulverizing mesoporous silica particles while a surfactant exists in mesopores, and mesoporous silica particles having an average particle diameter of 1 .mu.m or less, wherein the volume of mesopores having a diameter of 2 to 50 nm is 0.7 mL/g or more and the geomet
7951445 Photochromic optical article and method of producing the same May 31, 2011
A photochromic optical article comprising an optical substrate having a photochromic layer which is formed on at least one surface thereof and contains a photochromic compound is dispersed in a resin, and a thin metal oxide layer formed on the photochromic layer, wherein an indenonap
7947577 Method and apparatus for producing group III nitride May 24, 2011
A method of producing a group III nitride such as aluminum nitride, comprising the step of reacting a group III halide gas such as aluminum trichloride gas with a nitrogen source gas such as ammonia gas in a growth chamber to grow a group III nitride on a substrate held in the growth
7923166 Separating membrane for fuel cell April 12, 2011
The present invention discloses a membrane for a fuel cell, comprising: a solid polymer electrolyte membrane composed of a crosslinked ion exchange resin, and a polymer having a weight-average molecular weight of 5,000 to 1,000,000 and having a charge group of polarity opposite to that o
7906565 Tissue conditioner for dental use March 15, 2011
A mucosal adjustment material comprising a combination of a powdery material (a) and a liquid material (b), characterized especially in that a noncrosslinked (meth)acrylic polymer powder having a Tg in the range of 0-60.degree. C., e.g., polybutyl methacrylate, is used as the powdery
7876053 Nitride sintered body and method for manufacturing thereof January 25, 2011
An insulating material high both in thermal conductivity and light reflectance, and a submount high in heat radiatability for mounting an LED element thereon, capable of raising a light utilization factor and quickly radiating heat generated from the element. For example, used as a s
7871590 Mass of silicon solidified from molten state and process for producing the same January 18, 2011
A solidified mass for a high-purity multicrystal silicon material that is preferably applicable to producing crystal type silicon ingots for photo voltaics, and a process for producing the solidified mass are provided. The mass of silicon solidified from molten state is a solidified mass
7868051 Separation membrane for fuel battery and process for producing the same January 11, 2011
There are disclosed a membrane for a fuel cell in which voids in a porous membrane are filled with a crosslinking type ion exchange resin having both cation-exchange group and anion-exchange group via a covalent bond, wherein the ion exchange resin has ion-exchange groups with either
7825422 Ceramic substrate for mounting a light emitting element and method for manufacturing the same November 2, 2010
A ceramic substrate for mounting a light emitting element. The ceramic substrate has a placement surface for placing a light emitting element having an electrode; and an electrode electrically-connected with the electrode of the light emitting element, wherein the ceramic substrate c
7824644 Particulate silica November 2, 2010
There is provided particulate silica which can be suitably used as a viscoelasticity modifier such as a thickener which is added to liquid such as water, a liquid resin or paint to adjust its viscoelastic properties such as viscosity and thixotropic nature, a reinforcer or filler for
7803341 Fine dry silica particles September 28, 2010
Fine dry silica particles are produced by combustion by using a burner of a multiple-pipe structure, feeding a mixed gas of a gas of a siloxane compound without containing halogen in the molecules thereof and an oxygen gas at a ratio of 0.3 to 1.5 into the center pipe of a burner, and
7763693 Curable composition July 27, 2010
A curable composition comprising (1) 0.1 to 20 parts by weight of a silicon compound having a silanol group or a functional group for forming a silanol group upon hydrolysis and no radically polymerizable group, such as .gamma.-glycidoxypropyltrimethoxysilane, (2) 100 parts by weight
7754903 Curable polycyclic compounds and process for the production thereof July 13, 2010
The present invention discloses a curable polycyclic compound represented by the following formula (1): ##STR00001## {wherein A is a di- to hexa-valent group derived from a polycyclic hydrocarbon compound; R.sup.1 is an alkyl group of 1 to 4 carbon atoms, a perfluoroalkyl group of 1 to
7741381 Curable composition June 22, 2010
A curable composition comprising: (A) 100 parts by mass of a monomer component which comprises a radically polymerizable monomer and has a water absorbing capacity of not larger than 20% by weight; (B) 0.5 to 10 parts by mass of water; (C) 0.1 to 20 parts by mass of a surfactant; and
7734339 Iontophoresis apparatus June 8, 2010
An iontophoresis device comprising (A) a working electrode assembly having a working electrode, a medicine-containing portion and an ion-exchange membrane, (B) a counter electrode assembly having an electrode which opposes the working electrode, and (C) a power source unit electrically
7728154 Process for the preparation of 1-aryl-3,4-dihydro-1H-naphthalene-2-one June 1, 2010
1-aryl-3,4-dihydro-1H-naphthalene-2-one is prepared by isomerizing an epoxy compound represented by the following general formula, ##STR00001## wherein a is an integer of 0 to 5, b is an integer of 0 to 4, and R.sup.1 to R.sup.6 are hydrogen atoms or substituents such as alkyl gro
1 2 3 4 5

 
 
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