Tokyo, Japan
Tokyo, Japan

Idemitsu Kosan Co.,Ltd. is a Japanese petroleum company. It owns and operates oil platforms, refineries and produces and sells petroleum, oils and petrochemical products.Idemitsu is the second largest petroleum refiner in Japan, after Nippon Oil. It was ranked as the 262nd largest company in the world by revenue in Fortune Global 500 . It is number 26 in petroleum refining. Only publicly traded since 2006, Idemitsu Kosan is not listed on the Nikkei 225 stock index or the Topix 100, but instead in Topix Mid 400. Wikipedia.

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Patent
Idemitsu Kosan Co. | Date: 2016-12-28

A Schottky barrier diode element includes an n-type or p-type silicon (Si) substrate, an oxide semiconductor layer, and a Schottky electrode layer, the oxide semiconductor layer including either or both of a polycrystalline oxide that includes gallium (Ga) as the main component and an amorphous oxide that includes gallium (Ga) as the main component.


A method for producing a polyaniline complex composition including: removing from an organic solution that includes (a) polyaniline doped with a compound represented by M(XARn)m (I) and (b) a phenolic compound, thereby to obtain a composition; and immersing the composition in (c) a solution that comprises at least one of sulfonic acid and sulfonate, followed by drying.


Patent
Idemitsu Kosan Co. | Date: 2017-02-08

The lubricating oil composition for an internal combustion engine of the invention contains (A) a lubricant base oil composed of a mineral oil and/or a synthetic oil, (B) a boron-containing alkenylsuccinimide and/or a boron-containing alkylsuccinimide in an amount of 0.001 to 0.1% by mass as a boron-equivalent amount based on the total amount of the composition, and (C) a poly(meth)acrylate in an amount of 0.1 to 30% by mass based on the total amount of the composition, and the poly(meth)acrylate has Mw of 100,000 to 700,000 and Mw/X of 30,000 or more, in which the weight-average molecular weight thereof is represented by Mw and the mean carbon number of the alkyl groups therein, as measured through ^(13)C-NMR, is represented by X.


Benzimidazolo[1,2-a]benzimidazole carrying benzimidazolo[1,2-a]benzimidazolylyl groups, carbazolyl groups, benzofurane groups or benzothiophene groups and their use in electronic devices, especially electroluminescent devices. When used as charge transport material, charge blocker material and/or host material in electroluminescent devices, the inventive compounds may provide improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices and reduced driving voltage of electroluminescent devices.


Patent
Idemitsu Kosan Co. | Date: 2017-04-05

A urea grease of the invention is prepared by applying shear at a shear rate of 10^(2)s^(-1) or more to a mixture solution of an amine mixture containing an alicyclic monoamine and a chain aliphatic monoamine, and a diisocyanate compound to cause a reaction in the mixture, in which the urea grease has Peak High32-64s of 1.5 or less and Level High32-64s of 10 or less according to an FAG method.


Patent
Idemitsu Kosan Co. | Date: 2017-01-04

Provided is a polycarbonate resin, including, as a dihydric phenol serving as a raw material, a bisphenol A having an isopropenylphenol concentration of 150 ppm by mass or less within 1 hour after granulation and under an ambient temperature condition of from 10C to 50C.


Patent
Idemitsu Kosan Co. | Date: 2017-02-01

Provided are a hot-melt adhesive having high flowability in a molten state and exhibiting high adhesion strength in bonding PP nonwoven fabrics and further exhibiting high adhesion strength in bonding PE film-PP nonwoven fabric, and a base polymer for a hot-melt adhesive. The hot-melt adhesive contains (A) a propylene-based polymer satisfying the following (Ai) to (Aiv), and (B) an olefin-based copolymer satisfying the following (Bi) and (Bii); and the base polymer for a hot-melt adhesive consists of a mixture of (A) a propylene-based polymer satisfying the following (Ai) to (Aiv) and (B) an olefin-based copolymer satisfying the following (Bi) and (Bii) and satisfies the following (1) and (2). (Ai) the melting point is 120C or lower, (Aii) the Mw is 10,000 to 150,000, (Aiii) the Mw/Mn is 2.5 or less, (Aiv) the penetration is 8 or less, (Bi) the penetration is 15 or more, (Bii) the melting point is 90C or higher, (1) the tensile elastic modulus at 23C is 400 MPa or less, and (2) the semi-crystallization time at 23C is 20 minutes or less.


The lubricating oil composition for a refrigerator of the present invention is a lubricating oil composition for a refrigerator that is used in combination with a refrigerant containing at least one fluorine-containing organic compound selected from compounds represented by the following molecular formula (A):CpF_(r)R_(s)(A)wherein R represents Cl, Br, I, or H; p represents an integer of from 2 to 6; r represents an integer of from 1 to 12; and s represents an integer of from 0 to 11, provided that the molecule contains at least one carbon-carbon unsaturated bond, and the lubricating oil composition for a refrigerator contains a base oil and a cyclic organic compound having a cyclic hydrocarbon structure and having one or more non-conjugated double bond in a cyclic structure or a side chain thereof.


The method for producing a polyalkylene glycol of the present invention is a method for producing a polyalkylene glycol, including performing a polymerization reaction of an alkylene oxide with a composite metal catalyst, the polymerization reaction being performed in the presence of an organic solvent in an amount of 10 to 90 mass% based on the polyalkylene glycol to be produced.


Patent
Idemitsu Kosan Co. | Date: 2017-09-13

The lubricating oil composition for a refrigerator according to the present invention is a lubricating oil composition for a refrigerator containing a base oil containing a low-viscosity base oil component having added thereto a polyoxyalkylene glycol compound having a kinetic viscosity at 100C that is higher than the low-viscosity base oil component, and the base oil has a kinetic viscosity at 100C of 2.4 to 25 mm^(2)/s and a ratio (Mw/Mn) of a weight average molecular weight (Mw) and a number average molecular weight (Mn) of 1.3 to 13.

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