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Idemitsu Kosan Co. Ltd. Patents
Assignee:
Idemitsu Kosan Co. Ltd.
Address:
Tokyo, JP
No. of patents:
917
Patents:


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Patent Number Title Of Patent Date Issued
RE43604 Polycarbonate resin and electrophotographic photosensitive member using same August 28, 2012
Provided are a polycarbonate resin which can solve problems present in an electrophotographic photoreceptor and an electrophotographic photoreceptor in which the above polycarbonate resin is used and which is improved in a cleaning property, a lubricity and an abrasion resistance. Th
RE39382 Lubricating oil composition for high-temperature use November 7, 2006
The present invention relates to a lubricant composition for a high temperature of which the amount evaporated in a thin film at a high temperature is controlled and of which the fluidity is maintained for a long period of time, and it is a lubricant composition for a high temperatur
RE37064 Process for producing styrenic polymer February 20, 2001
There is disclosed a process for producing a styrenic polymer, especially, syndiotactic polystyrene, which comprises polymerizing a styrenic monomer by the use of (a) a transition metal compound, (b) a coordination complex compound comprising an anion in which a plurality of radicals are
RE36563 Transition metal compound, polymerization catalyst using same and process for producing styrenic February 8, 2000
There are disclosed a transition metal compound of the general formula RMX.sub.a-1 L.sub.b (R is a .pi. ligand, a fused polycyclic cyclopentadienyl group in which at least one of many-membered rings to which cyclopentadienyl groups are fusedly bonded is a saturated ring, M is a trans
8587192 Organic electroluminescence device and material for organic electroluminescence device November 19, 2013
An organic electroluminescence device includes: a cathode; an anode; and a single-layered or multilayered organic thin-film layer provided between the cathode and the anode. In the organic electroluminescence device, the organic thin-film layer includes at least one emitting layer, and t
8586206 Aromatic amine derivative and organic electroluminescence device using the same November 19, 2013
An aromatic amine derivative represented by the following formula (1), wherein at least one of Ar.sup.1 to Ar.sup.3 is represented by the following formula (2), wherein X.sub.1 to X.sub.3 are independently a nitrogen atom or CR.sup.2, provided that two of X.sub.1 to X.sub.3 are a nit
8586199 Organic electroluminescence device November 19, 2013
Provided is an organic electroluminescence device in which a reduction in luminance is suppressed and a lifetime is significantly improved. The object is achieved by an organic electroluminescence device having organic compound layers including an organic emitting layer, which is int
8580719 Lubricating oil composition for internal combustion engine November 12, 2013
A lubricating oil composition for internal combustion engines which comprises a base oil comprising mineral oils and/or synthetic oils and polyisobutylene having a weight-average molecular weight of 500,000 or higher. Consumption of the engine oil can be decreased by using the above
8580398 Material for organic electroluminescent devices and organic electroluminescent devices made by u November 12, 2013
A material for electroluminescent devices which comprises a compound in which a heterocyclic group having nitrogen is bonded to carbazolyl group and an organic electroluminescent device having at least one organic thin film layer which is sandwiched between the cathode and the anode and
8580393 Polymer and organic electroluminescent device including the same November 12, 2013
A polymer compound including a repeating unit shown by the following formula (1) wherein at least one of Ar.sup.1, Ar.sup.2 and Ar.sup.3 in the formula (1) is a group shown by the formula (2) and the two bonds shown in the formula (1) are present on any one or any two of Ar.sup.1, Ar
8580391 Material for organic electroluminescence devices and organic electroluminescence device using th November 12, 2013
A material for organic electroluminescence devices comprising a compound in which a heterocyclic group having nitrogen is bonded to an arylcarbazolyl group or a carbazolylalkylene group and an organic electroluminescence device comprising an anode, a cathode and an organic thin film
8575599 Compound for organic thin film transistor and organic thin film transistor using the same November 5, 2013
A compound for an organic thin film transistor having a structure of the following formula (1): ##STR00001## wherein R.sub.1 to R.sub.6 are independently a hydrogen atom, a halogen atom, an alkyl group having 1 to 30 carbon atoms, a haloalkyl group having 1 to 30 carbon atoms, an alkox
8575080 Lubricating oil composition for diesel engine November 5, 2013
A lubricating oil composition for diesel engines, particularly a composition with low ashes and no metals. The lubricating oil composition has exceedingly high detergency and excellent antiwear so that it is suitably used for diesel engines equipped with an apparatus for after-treatm
8574725 Organic el element and solution containing organic el material November 5, 2013
An organic electroluminescence device includes: an anode; a cathode; and an organic thin-film layer interposed between the anode and the cathode. The organic thin-film layer includes a phosphorescent-emitting layer containing a host and a phosphorescent dopant. The host contains a first
8568903 Phenanthrene derivative, and material for organic EL element October 29, 2013
A phenanthrene derivative is represented by a formula (1) below. In the formula (1), Ar.sup.1 to Ar.sup.4 each represent an aromatic hydrocarbon ring group having 6 to 18 carbon atoms for forming the ring. The aromatic hydrocarbon ring group contains none of anthracene skeleton, pyrene
8568902 Asymmetric monoanthracene derivative, material for organic electroluminescent device and organic October 29, 2013
Provided are an asymmetric monoanthracene derivative having a specific structure, a material for an organic EL device comprising the above asymmetric monoanthracene derivative and an organic EL device in which an organic thin film layer comprising a single layer or plural layers incl
8568621 Transparent conductive film October 29, 2013
A transparent conductive film which is an indium zinc oxide film comprising In.sub.2O.sub.3 crystals, and has an X-ray diffraction peak using a Cuk.alpha. ray that appears within at least one area selected from areas ranging from 2.theta.=35.5.degree. to 37.0.degree., 39.0.degree. to
8568609 Lubricating oil composition for refrigerating machine October 29, 2013
A lubricating oil composition for refrigerator is formed by adding an organic compound that includes a double bond in the molecule such as .alpha.-olefin or conjugated diene to a base oil. Capable of being stably used for a long time in the presence of oxygen, the lubricating oil com
8563969 Benzanthracene compound and organic electroluminescence device using the same October 22, 2013
A compound having the structure represented by the following formula (1) or (1)' as at least a part: ##STR00001## wherein FA is a fused aromatic ring, and Ar is an aromatic group.
8563495 Resist remover composition and method for removing resist using same October 22, 2013
There are provided a resist remover composition containing an amide solvent (A) represented by the following formula (1) and an organic amine compound (B), and a method for removing a resist using the resist remover composition, i.e., a resist remover composition that provides a suff
8563145 Material containing two or three dibenzofuran groups, dibenzothiophene groups, or a combination October 22, 2013
An organic electroluminescence device comprising a compound having a specific structure having a heteroatom and an organic electroluminescence device which comprises a cathode, an anode and an organic thin film layer which comprises at least one layer comprising at least a light emitting
8299247 Material for organic electroluminescence device and organic electroluminescence device October 30, 2012
A material for an organic electroluminescence device including an indenofluorenedione derivative shown by the following formula (I): ##STR00001## wherein X.sup.1 and X.sup.2, which may be the same or different, are any of specific divalent groups; R.sup.1 to R.sup.10, which may be t
8299150 Aromatic polycarbonate resin composition and molding thereof October 30, 2012
An aromatic polycarbonate resin composition exhibiting small molding shrinkage anisotropy, high dimensional stability, and high flowability, and a molded article produced therefrom, wherein the aromatic polycarbonate resin composition, and the molding thereof, each comprise 100 parts
8299004 Hydraulic fluid and hydraulic system October 30, 2012
A hydraulic fluid of the present invention contains, as a base oil, an ester having two or more ring structures, the two or more ring structures being at least one selected from an aromatic ring and a saturated naphthenic ring. Particularly, the hydraulic fluid contains an ester havi
8294142 Organic EL device October 23, 2012
An organic EL device includes: an anode; a cathode and an organic thin-film layer provided between the anode and the cathode. The organic thin-film layer includes: a fluorescent-emitting layer containing a fluorescent host and a fluorescent dopant; and a phosphorescent-emitting layer
8293693 Conductive lubricant composition October 23, 2012
The present invention provides a conductive lubricant composition, characterized in that the composition contains a lubricating base oil (A) other than a silicone oil, and a non-metallic antistatic agent (B), and exhibits a kinematic viscosity of 25 mm.sup.2/s or less at 40.degree. C.,
8293672 Solid catalyst component for olefin polymerization, catalyst for olefin polymerization and proce October 23, 2012
A solid catalyst component for olefin polymerization in which the molar ratio of residual alkoxy groups to supported titanium is 0.60 or less is obtained by reacting the following compound (a1) with the following compound (b1) at a hydroxyl group/magnesium molar ratio of 1.0 or more,
8293130 Refrigerator oil composition October 23, 2012
Disclosed is a refrigerator oil composition containing a base oil (A) composed of a polyvinyl ether, an organic sulfur compound (B) having a sulfur content of not more than 35% by mass and a refrigerant (C), in which a total sulfur content is 0.01 to 0.1% by mass with respect to a to
8292813 Transmission medium for ultrasonic diagnosis October 23, 2012
Provided is a method of ultrasound diagnosis, wherein the method includes: coating a surface of a specimen with a transmission medium; and performing the ultrasound diagnosis, wherein the transmission medium has a viscosity of at least 1,000 mPas at 25.degree. C. and contains a hydro
8288013 Material for organic electroluminescence device and organic electroluminescence device October 16, 2012
A material for an organic electroluminescence device including an indenofluorenedione derivative shown by the following formula (I): ##STR00001## wherein X.sup.1 and X.sup.2, which may be the same or different, are any of specific divalent groups; R.sup.1 to R.sup.10, which may be t
8278819 Organic electroluminescence device and display October 2, 2012
In an organic electroluminescence device including a cathode and an anode, at least an emitting layer and an electron transporting layer are provided between the cathode and the anode. The emitting layer contains a host material formed of a naphthacene derivative represented by the f
8268762 Transmission fluid composition September 18, 2012
The invention provides a transmission fluid composition which has a kinematic viscosity as determined at 100.degree. C. of 2 to 10 mm.sup.2/s and a viscosity index of 150 or higher and which satisfies a relationship between kinematic viscosity and NOACK evaporation loss amount represente
8268459 Benzanthracene compound and organic electroluminescence device using the same September 18, 2012
A compound having the following structure as at least a part thereof: ##STR00001## wherein FA and FA' are independently a substituted or unsubstituted hydrocarbon aromatic ring or hetero atom-containing aromatic ring, and at least one of FA and FA' is the hetero atom-containing arom
8268457 Organic electroluminescent device and material for organic electroluminescent device September 18, 2012
Disclosed is a novel compound useful as a constituent of an organic EL device. Also disclosed is a practical organic EL device using this compound. This organic EL device has low driving voltage, long life, and reduced leakage current. Specifically disclosed is a compound characteriz
8263977 TFT substrate and TFT substrate manufacturing method September 11, 2012
An object of the invention is to provide a TFT substrate and a method for producing a TFT substrate which is capable of drastically reducing the production cost by decreasing the number of steps in the production process and improving production yield. A TFT substrate comprises: a su
8258089 Grease composition September 4, 2012
Provided is a grease composition with a long service life under high-temperature conditions, considerable low-evaporability, and incombustibility. The invention provides a grease composition comprising, as a base oil, an ionic liquid formed of a cation and an anion and having an ion
8253129 Benzochrysene derivative and an organic electroluminescence device using the same August 28, 2012
A fused aromatic ring derivative shown by the following formula (1): ##STR00001## wherein R.sub.a and R.sub.b are independently a hydrogen atom or a substituent; p is an integer of 1 to 13; q is an integer of 1 to 8; when p is two or more, plural R.sub.as may be the same or differen
8232552 Noncrystalline oxide semiconductor thin film, process for producing the noncrystalline oxide sem July 31, 2012
This invention provides an amorphous oxide semiconductor thin film, which is insoluble in a phosphoric acid-based etching solution and is soluble in an oxalic acid-based etching solution by optimizing the amounts of indium, tin, and zinc, a method of producing the amorphous oxide sem
8222637 Benzochrysene derivative and organic electroluminescence device using the same July 17, 2012
A fused aromatic ring derivative shown by the following formula (1): ##STR00001## wherein R.sub.a and R.sub.b are independently a hydrogen atom or a substituent, m and n are independently an integer of 1 to 13, and when m and n are two or more, R.sub.as and R.sub.bs may be independe
8221907 Chrysene derivative and organic electroluminescent device using the same July 17, 2012
A chrysene derivative shown by the following formula: ##STR00001## wherein R.sub.1 to R.sub.10 and R.sub.21 to R.sub.25 are independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to
8221886 Aromatic polycarbonate resin composition, molded body thereof for optical use, and light diffusi July 17, 2012
Provided is an aromatic polycarbonate resin composition containing, with respect to 100 parts by mass of a resin mixture including 60 to 99 mass % of (A) an aromatic polycarbonate resin and 1 to 40 mass % of (B) a styrene-based resin, 1 to 30 parts by mass of a compatibilizer, the co
8221643 Lubricating oil composition for compression refrigerator having traction mechanism July 17, 2012
The present invention provides a lubricating oil composition for a compression type refrigerator, containing a base oil having a kinematic viscosity of 2 to 1,000 mm.sup.2/s at 40.degree. C. The base oil contains the following compounds (1) to (6) each having a molecular weight of 150
8217570 Anthracene derivative and organic electroluminescent element using the same July 10, 2012
Provided are an anthracene derivative having a heteroaryl group containing a nitrogen-containing six-membered ring and having a specific structure and an organic electroluminescence device in which an organic thin film layer comprising a single layer or plural layers including at lea
8217389 Organic thin film transistor device and organic thin film light-emitting transistor July 10, 2012
An organic thin film transistor including a substrate having thereon at least three terminals of a gate electrode, a source electrode and a drain electrode, an insulator layer and an organic semiconductor layer, with a current between a source and a drain being controlled upon applicatio
8211552 Organic electroluminescence device July 3, 2012
An organic electroluminescence device includes: a cathode; an anode; and a single-layered or multilayered organic thin-film layer provided between the cathode and the anode. In the organic electroluminescence device, the organic thin-film layer includes at least one emitting layer, and t
8207526 Organic EL device June 26, 2012
A phosphorescent-emitting layer contains a phosphorescent host and a phosphorescent dopant for providing phosphorescence, and a fluorescent-emitting layer contains a fluorescent host and a fluorescent dopant for providing fluorescence. A charge blocking layer blocks electrons injecte
8207525 Organic thin film transistor and organic thin film light emitting transistor June 26, 2012
An organic thin film transistor including a substrate having thereon at least three terminals of a gate electrode, a source electrode and a drain electrode, an insulator layer and an organic semiconductor layer, with a current between a source and a drain being controlled upon applicatio
8207288 Polycarbonate polymer, coating liquid, and electrophotographic photosensitive body June 26, 2012
A polycarbonate polymer includes: a monomer unit represented by a formula (1A) below; and a monomer unit represented by a formula (2). A haze of a solution that is obtained by dissolving the polycarbonate polymer in THF (tetrahydrofuran) at a concentration of 10 mass % is 5% or less
8203139 Organic thin film transistor and organic thin film light-emitting transistor using an organic se June 19, 2012
An organic thin film transistor including a substrate having thereon at least three terminals of a gate electrode, a source electrode and a drain electrode, an insulator layer and an organic semiconductor layer, with a current between a source and a drain being controlled upon applicatio
8198366 Thermoplastic resin composition and molded body June 12, 2012
The present invention provides a thermoplastic resin composition containing (A) a resin mixture including (a-1) a polycarbonate resin in an amount of 45 to 97% by mass and (a-2) a fatty acid polyester in an amount of 55 to 3 % by mass, and (B) a rubber-like elastomer in an amount of
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