Patents Assigned to Idemitsu Kosan Co., Ltd.
  • Patent number: 8563145
    Abstract: 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 layer and is disposed between the cathode and the anode, wherein at least one layer in the organic thin film layer comprises the above compound. The device provides excellent efficiency of light emission, forms no defects in pixels, exhibits excellent heat resistance and has a long life.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: October 22, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Toshihiro Iwakuma, Masahide Matsuura, Yuki Nakano, Hidetsugu Ikeda
  • Patent number: 8563495
    Abstract: 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 sufficient removing capability even in a state where a resist is dissolved therein and is capable of being used for a prolonged period of time, and a method for removing a resist using the same. wherein R1 represents a linear, branched or cyclic alkyl group having from 1 to 6 carbon atoms; R2 and R3 each independently represent a linear or branched alkyl group having from 1 to 3 carbon atoms; and n represents an integer of from 0 to 2.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: October 22, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Toyozo Fujioka, Hayato Yamasaki
  • Patent number: 8563969
    Abstract: A compound having the structure represented by the following formula (1) or (1)? as at least a part: wherein FA is a fused aromatic ring, and Ar is an aromatic group.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: October 22, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Mitsunori Ito, Masahiro Kawamura
  • Publication number: 20130270540
    Abstract: A material for organic electroluminescence device having a specific structure, in which an aromatic ring of a dibenzofuran skeleton, a carbazole skeleton, or a dibenzothiophene skeleton has a nitrogen atom as a heteroatom, and an organic electroluminescence device including an organic thin film layer which includes one or more layers between a cathode and an anode. The organic thin film layer includes a light emitting layer which includes a phosphorescent emitting material. At least one layer of the organic thin film layer includes the material for organic electroluminescence device. The organic EL device employing the material for organic EL device has a high external quantum efficiency even when driving the device at low voltage and also has a long lifetime.
    Type: Application
    Filed: December 26, 2011
    Publication date: October 17, 2013
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventor: Masaki Numata
  • Publication number: 20130270539
    Abstract: An organic electroluminescence device including at least an anode, an emitting layer, an electron-transporting region and a cathode in sequential order, wherein the emitting layer contains a host and a dopant which gives fluorescent emission of which the main peak wavelength is 550 nm or less; the affinity Ad of the dopant is equal to or larger than the affinity Ah of the host; the triplet energy ETd of the dopant is larger than the triplet energy ETh of the host; and a blocking layer is provided within the electron-transporting region such that it is adjacent to the emitting layer, and the triplet energy ETb of the blocking layer is larger than ETh.
    Type: Application
    Filed: June 4, 2013
    Publication date: October 17, 2013
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: HITOSHI KUMA, YUICHIRO KAWAMURA, YUKITOSHI JINDE, TOSHINARI OGIWARA, CHISHIO HOSOKAWA
  • Publication number: 20130270541
    Abstract: A manufacturing method of an imidazole compound represented by a formula (1) below includes reacting 1-arylimidazole with a halogen-atom substituted compound. For performing this reaction, in a reaction system, a mole number Nf(2) [mol] of the halogen-atom substituted compound and a total volume Vsol [liter] of an ether solvent having at most 5 carbon atoms satisfy a relationship of Vsol/Nf(2)?3. In the formula (1): R1 and R4 represent a substituent and the like; Z1 represents a group of atoms necessary for forming a hydrocarbon cyclic group and the like; R2 and R3 represent a bond, a hydrogen atom or an aromatic hydrocarbon group; Z2 represents a group of atoms necessary for forming a five-membered hydrocarbon ring and the like together with C—C; and m represents an integer of 1 to 5.
    Type: Application
    Filed: January 5, 2012
    Publication date: October 17, 2013
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventor: Masaki Numata
  • Patent number: 8558221
    Abstract: A polymer comprising the repeating units derived from an aromatic compound having a specific structure and a repeating unit derived from the compound represented by formula (1): wherein Ar1 to Ar4 are each independently a substituted or unsubstituted aryl group having 6 to 40 ring-forming carbon atoms, a substituted or unsubstituted heterocyclic group having 3 to 40 ring-forming atoms, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; X is a substituted or unsubstituted aryl group having 6 to 40 ring-forming carbon atoms, a substituted or unsubstituted heterocyclic group having 3 to 40 ring-forming atoms, or a substituted or unsubstituted di- to tetravalent styrene-derived group; and s is an integer of 0 to 3. The polymer is useful as a light emission material and realizes a polymer electroluminescence device excellent in device characteristics such as lifetime and emission efficiency.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: October 15, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Mitsunori Ito, Yumiko Mizuki
  • Patent number: 8557751
    Abstract: The lubricating oil composition contains a base oil, a phosphate ester derivative represented by a formula (1) below and a zinc compound. An element ratio (Zn/P) between zinc (Zn) and phosphorus (P) in the lubricating oil composition is 0.55 or more at a mole ratio. In the formula, Y represents S (sulfur) or O (oxygen); R1 represents an organic group having 4 to 24 carbon atoms; R2 represents a divalent organic group having 1 to 6 carbon atoms; and n represents an integer of 1 to 3.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: October 15, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Hirotaka Yamasaki, Motoharu Ishikawa
  • Patent number: 8546289
    Abstract: 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, reacting the reaction mixture with the following compound (c1) at a halogen/magnesium molar ratio of 0.20 or more, reacting the resultant reaction mixture with the following compounds (d1) and (e) at a temperature of 120° C. or higher but 150° C.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: October 1, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Shojiro Tanase, Takanori Sadashima
  • Patent number: 8546481
    Abstract: An aqueous dispersion containing a graft copolymer satisfying (a) to (e) and water: (a) a graft rate is 1 to 150% by mass, (b) a weight average molecular weight is 500 to 400000, (c) a molecular weight distribution is 1.5 to 4, (d) a main chain containing a monomer unit having a hydrophilic group and (e) an ?-olefin homopolymerization or ?-olefin/ethylene copolymerization side chain, wherein a mesopentad ratio [mmmm] of the polymerization chain is 30 to 80 mole %.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: October 1, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Shuji Machida, Takenori Fujimura, Ryo Aburatani
  • Patent number: 8545980
    Abstract: A polypropylene resin having: (1) a melt flow rate (MFR) of 6 to 100 g/10 minutes, (2) a molecular weight distribution (Mw/Mn), measured by gel permeation chromatography, of 3 to 6, and (3) a 116° C. non-eluted component content (100-W116(%)) of 50% or more and a content of components eluted at 90° C. or less (W90) of 10 to 30%, measured by temperature-rising fractional chromatography (TREF).
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: October 1, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Takeharu Tajima, Toshitaka Kanai, Tomoaki Takebe, Yutaka Minami
  • Patent number: 8545911
    Abstract: A phorbol ester is decomposed by mixing an organic substance containing a phorbol ester and Bacillus substilis var. natto and subjecting the resulting mixture to fermentation. At this time, 4 parts by mass of organic substance containing a phorbol ester is mixed with 0.5 to 3 parts by mass of water, and the resulting mixture is subjected to high-temperature and high-pressure sterilization. Then, a solution obtained by dissolving 0.004 to 0.2 part by mass of Bacillus subtilis var. natto in 0.5 to 1 part by mass of water is added, and the resulting mixture is subjected to fermentation at 30 to 50° C. for two to four weeks.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: October 1, 2013
    Assignees: Idemitsu Kosan Co., Ltd., Nippon Biodiesel Fuel Co., Ltd.
    Inventors: Yuxi He, Hideo Kikutsugi
  • Publication number: 20130253183
    Abstract: Provided are: an aromatic amine derivative in which a terminal substituent such as a dibenzofuran ring or a dibenzothiophene ring is bonded to a nitrogen atom directly or through an arylene group or the like; an organic electroluminescence device including an organic thin film layer formed of one or more layers including a light emitting layer and interposed between a cathode and an anode in which a layer of the organic thin film layer contains the aromatic amine derivative by itself or as a component of a mixture, and the device has a long lifetime and high luminous efficiency; and an aromatic amine derivative for realizing the device.
    Type: Application
    Filed: May 24, 2013
    Publication date: September 26, 2013
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Yumiko MIZUKI, Masakazu Funahashi, Mitsunori Ito, Masahiro Kawamura
  • Publication number: 20130240858
    Abstract: An organic electroluminescence device including opposite anode and cathode, and a hole-transporting region, an emitting layer and an electron-transporting region in sequential order from the anode between the anode and the cathode, wherein the emitting layer includes a red emitting portion, a green emitting portion, and a blue emitting portion; the blue emitting portion includes a host BH and a fluorescent dopant FBD; the triplet energy ETfbd of the fluorescent dopant FBD is larger than the triplet energy ETbh of the host BH; the green emitting portion includes a host GH and a phosphorescent dopant PGD; the electron-transporting region includes a common electron-transporting layer adjacent to the red emitting portion, the green emitting portion and the blue emitting portion; the common electron-transporting layer includes a material having a triplet energy ETel larger than ETbh; and the difference between the affinity of the host GH and the affinity of the material constituting the common electron-transportin
    Type: Application
    Filed: May 2, 2013
    Publication date: September 19, 2013
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Kazuki NISHIMURA, Yuichiro KAWAMURA, Toshinari OGIWARA, Hitoshi KUMA, Kenichi FUKUOKA, Chishio HOSOKAWA
  • Publication number: 20130240859
    Abstract: A tandem organic electroluminescence device including a first emitting unit (3), an intermediate unit (4) and a second emitting unit (5) being stacked between opposing electrodes (2) and (6) the first emitting unit (3) including a blue fluorescent dopant and a red fluorescent dopant and the second emitting unit (5) including a red phosphorescent dopant and a green phosphorescent dopant.
    Type: Application
    Filed: October 20, 2011
    Publication date: September 19, 2013
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Takashi Arakane, Kazuki Nishimura, Kenichi Fukuoka, Hitoshi Kuma, Yukitoshi Jinde
  • Patent number: 8535812
    Abstract: A conductive composition including: a solvent; a ?-conjugated conductive polymer having a chlorine content of 0.6 wt % or less; and a compound represented by the following formula (1); wherein the ?-conjugated conductive polymer is dissolved and the weight ratio of the compound represented by the formula (1) to the ?-conjugated conductive polymer (compound represented by the formula (1)/?-conjugated conductive polymer) is 0.01 to 22.0.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: September 17, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Shota Totsuka, Toru Bando, Shinobu Yamao, Mitsutake Nakamura
  • Publication number: 20130234134
    Abstract: A thin film transistor including a gats electrode, a gate-insulating film, an oxide semiconductor film in contact with the gate-insulating film, and source and drain electrodes which connect to the oxide semiconductor film and are separated with a channel part therebetween, wherein the oxide semiconductor film comprises a crystalline indium oxide which includes hydrogen element, and the content of the hydrogen element contained in the oxide semiconductor film is 0.1 at % to 5 at % relative to all elements which form the oxide semiconductor film.
    Type: Application
    Filed: April 23, 2013
    Publication date: September 12, 2013
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Kazuyoshi INOUE, Koki Yano, Shigekazu Tomai, Masashi Kasami, Hirokazu Kawashima
  • Publication number: 20130234119
    Abstract: An organic electroluminescence device employing a specific biscarbazole derivative having a cyano group as a first host and a compound having both a carbazole structure and a nitrogen-containing aromatic heteroring as a second host. The organic electroluminescence device has a prolonged lifetime.
    Type: Application
    Filed: February 6, 2013
    Publication date: September 12, 2013
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventor: IDEMITSU KOSAN CO., LTD.
  • Publication number: 20130237660
    Abstract: Provided is a (meth)acrylate composition containing: (A) at least one (meth)acrylate compound selected from the group consisting of a (meth)acrylate-modified silicone oil, a (meth)acrylate having a long-chain aliphatic hydrocarbon group, and a polyalkylene glycol (meth)acrylate having number-average molecular weight of not less than 400; (B) a (meth)acrylate compound to which an alicyclic hydrocarbon group having 6 or more carbon atoms is ester-linked; (C) (meth)acrylic acid or a (meth)acrylate compound having a polar group; (D) a radical polymerization initiator; and (E) a white pigment.
    Type: Application
    Filed: October 19, 2011
    Publication date: September 12, 2013
    Applicant: Idemitsu Kosan Co. Ltd
    Inventors: Takeshi Iwasaki, Daichi Ogawa, Yutaka Obata, Tomoaki Takebe
  • Patent number: 8529739
    Abstract: A transparent conductive film for constructing a transparent electrode that is free from the generation of residue, etc. by etching with a weak acid (for example, organic acid). Further, there is provided a sputtering target for producing the transparent conductive film. In particular, there is provided a sputtering target composed of indium oxide and cerium oxide, characterized in that in the observation of crystal peaks by X-ray diffractometry, the presence of peaks ascribed to indium oxide and cerium oxide is observed, and that in the EPMA measurement, the diameter of cerium oxide particles dispersed in indium oxide is measured as being ?5 ?m. A transparent conductive film is formed by a sputtering technique with the use of this sputtering target. This transparent conductive film is substantially free from the generation of residue, etc. by etching with a weak acid (for example, organic acid).
    Type: Grant
    Filed: February 21, 2005
    Date of Patent: September 10, 2013
    Assignee: Idemitsu Kosan Co., Ltd
    Inventors: Kazuyoshi Inoue, Masato Matsubara, Shigekazu Tomai