Patents Assigned to Idemitsu Kosan Co., Ltd.
  • Organic electroluminescence device
    Publication number: 20100201255
    Abstract: An organic electroluminescence device comprising a pair of electrodes and a layer of an organic light emitting medium disposed between the pair of electrodes, wherein the layer of an organic light emitting medium comprises a mixed layer comprising (A) at least one hole transporting compound and (B) at least one electron transporting compound, an energy gap of the hole transporting compound represented by Eg1 and an energy gap of the electron transporting compound represented by Eg2 satisfy a relation: Eg1<Eg2. Electrons and holes are recombined in the layer of an organic light emitting medium and light is emitted. The organic electroluminescence device has a long life and emits light at a high efficiency.
    Type: Application
    Filed: April 21, 2010
    Publication date: August 12, 2010
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Chishio Hosokawa, Hisahiro Higashi, Kenichi Fukuoka, Hidetsugu Ikeda, Takashi Arakane
  • ORGANIC ELECTROLUMINESCENT DEVICE WITH CARRIER BLOCKING LAYER INTERPOSED BETWEEN TWO EMITTING LAYERS
    Publication number: 20100200848
    Abstract: An organic electroluminescent device including in sequence an anode, a first emitting layer (5), a carrier barrier layer (6), a second emitting layer (7) and a cathode stacked; wherein the ionization potential of the carrier barrier layer (6) is more than the ionization potential of the first emitting layer (5) by 0.1 eV or more and the affinity level of the carrier barrier layer (6) is less than the affinity levels of the first emitting layer (5) and the second emitting layer (7) by 0.1 eV or more.
    Type: Application
    Filed: April 27, 2010
    Publication date: August 12, 2010
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Takashi ARAKANE, Hitoshi Kuma, Hisayuki Kawamura, Toshihiro Iwakuma, Chishio Hosokawa
  • METHOD FOR PRODUCING LITHIUM ION CONDUCTIVE SOLID ELECTROLYTE
    Publication number: 20100200795
    Abstract: A method for producing a lithium ion conductive solid electrolyte including the step of bringing one or more compounds selected from phosphorous sulfide, germanium sulfide, silicon sulfide and boron sulfide into contact with lithium sulfide in a hydrocarbon-based solvent.
    Type: Application
    Filed: September 22, 2008
    Publication date: August 12, 2010
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Tsuyoshi Ota, Minoru Senga, Shigeo Matsuzaki
  • Sulfosuccinate protonated conductive polyaniline composition, process for producing the same, and molded object thereof
    Patent number: 7771621
    Abstract: A conductive polyaniline composition of a substituted or unsubstituted polyaniline complex and a compound with a phenolic hydroxyl group dissolved in an organic solvent substantially immiscible with water that is capable of producing a molded article possessing high conductivity.
    Type: Grant
    Filed: November 25, 2004
    Date of Patent: August 10, 2010
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Noriyuki Kuramoto, Mizutomo Takeuchi
  • CHRYSENE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
    Publication number: 20100194270
    Abstract: A chrysene derivative shown by the following formula: wherein R1 to R10 and R21 to R25 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 10 ring carbon atoms, a substituted or unsubstituted alkylsilyl group having 3 to 20 carbon atoms, a substituted or unsubstituted arylsilyl group having 8 to 30 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 20 ring carbon atoms, provided that at least one of R21 to R25 is a substituted or unsubstituted fused aromatic ring group having 10 to 20 ring carbon atoms or a substituted or unsubstituted fluorenyl group.
    Type: Application
    Filed: July 2, 2008
    Publication date: August 5, 2010
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Masahiro Kawamura, Kazuki Nishimura, Toshihiro Iwakuma, Kenichi Fukuoka, Chishio Hosokawa, Masakazu Funahashi, Tetsuya Inoue, Yukitoshi Jinde, Yuichiro Kawamura, Mitsunori Ito, Yoriyuki Takashima, Toshinari Ogiwara
  • Nitrogen-containing heterocycle derivative and organic electroluminescent element using the same
    Publication number: 20100193773
    Abstract: A novel derivative of heterocyclic compound having nitrogen atom with a structure made by bonding special groups to benzimidazole, a material for an organic electroluminescence (EL) device comprising the derivative of heterocyclic compound having nitrogen atom and an organic electroluminescence device comprising at least one organic compound layer containing a light emitting layer sandwiched between a pair of electrodes, wherein the device contains the derivative of heterocyclic compound having nitrogen atom. An organic EL device achieving elevation of luminance and of efficiency in light emission even under low driving voltage is obtainable by an employment of the derivative of heterocyclic compound having nitrogen atom for at least one layer composing organic compound layers of the EL device.
    Type: Application
    Filed: April 7, 2010
    Publication date: August 5, 2010
    Applicant: Idemitsu Kosan Co., Ltd,
    Inventors: Hiroshi Yamamoto, Masahide Matsuura, Mineyuki Kubota, Masahiro Kawamura
  • METHOD FOR DECOMPOSING DINITROGEN MONOXIDE
    Publication number: 20100196238
    Abstract: A method for decomposing dinitrogen monoxide including bringing a gas containing dinitrogen monoxide into contact with a fluid catalytic cracking (FCC) equilibrium catalyst.
    Type: Application
    Filed: July 26, 2007
    Publication date: August 5, 2010
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventor: Naoki Fujiwara
  • Light-diffusing polycarbonate resin composition and light diffuser plate comprising the resin composition
    Patent number: 7767780
    Abstract: The present invention provides a light diffusing polycarbonate resin composition including a polycarbonate resin containing a polycarbonate copolymer which comprises a repeating unit represented by the general formula (I) shown below and a repeating unit represented by the general formula (II) shown below, which has a content of the repeating units of the general formula (II) of 1 to 30% by mass and which has a viscosity value of 30 to 71, and (B) a light diffusing agent compounded therein in an amount of 0.01 to 10 parts by mass per 100 parts by mass of the polycarbonate resin. The light diffusing polycarbonate resin composition and a light diffusing plate thereof show improved fluidity during molding and have excellent heat resistance, dimensional stability, luminance and color tone.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: August 3, 2010
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Hiroshi Kawato, Masami Kogure, Yoshihiko Horio, Yasuhiro Ishikawa
  • Organic electroluminescent device with improved luminous efficiency
    Patent number: 7768195
    Abstract: An organic electroluminescent device (20) including an anode (1), a first emitting layer (3), a carrier barrier layer (4), a second emitting layer (5), and a cathode (7) stacked in that order. The first emitting layer (3) is formed of a hole transporting material, and the second emitting layer (5) is formed of an electron transporting material. The affinity level of the carrier barrier layer (4) is smaller than the affinity level of the second emitting layer (5) in an amount of 0.2 eV or more, and the ionization potential (Ie1) of the carrier barrier layer (4) and the ionization potential (Ih1) of the first emitting layer (3) satisfy Ie1<Ih1+0.1 (eV) (1).
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: August 3, 2010
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Yukitoshi Jinde, Hitoshi Kuma
  • ELASTIC NONWOVEN FABRIC, PROCESS FOR PRODUCING THE SAME, AND TEXTILE PRODUCT COMPRISING THE ELASTIC NONWOVEN FABRIC
    Publication number: 20100190405
    Abstract: (1) An elastic nonwoven fabric and a fiber product using the elastic nonwoven fabric, the elastic nonwoven fabric containing a crystalline resin composition containing low crystalline polypropylene and high crystalline polypropylene, the low crystalline polypropylene satisfying items (a) and (b) below, and a crystallization temperature (Tc) of the crystalline resin composition measured with a differential scanning calorimeter (DSC) being from 20 to 100° C.: (a) a melting point (Tm-D) being from 0 to 120° C., which is defined as a peak top of a peak observed on the most high temperature side of a melt endothermic curve obtained by maintaining at ?10° C. for 5 minutes and increasing in temperature at 10° C.
    Type: Application
    Filed: June 25, 2008
    Publication date: July 29, 2010
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Tomoaki Takebe, Yutaka Minami, Toshitaka Kanai
  • WATER-BASED METALWORKING FLUID
    Publication number: 20100187480
    Abstract: Water-based metalworking fluid contains: (A) alkanolamine represented by the following formula (1) and/or (B) alkanolamine represented by the following formula (2); and (C) 2-pyridylthio-1-oxide salt. In the formula (1): each R1 represents hydrogen or an alkyl group having 1 to 3 carbon atoms; n represents 2 or 3; and plural R1 may be mutually the same or different on condition that not all R1 represent hydrogen. In the formula (2): R2 represents an alkyl group having 1 to 10 carbon atoms; and Z1 and Z2 each represent an alkylene group having 2 to 8 carbon atoms.
    Type: Application
    Filed: July 15, 2008
    Publication date: July 29, 2010
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Hiroshi Kawasaki, Fumiaki Takagi
  • MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENT, AND ORGANIC ELECTROLUMINESCENT ELEMENT
    Publication number: 20100187519
    Abstract: A material for an organic electroluminescence device including at least one of compounds shown by the following formula (Ia), (Ib), (IIa), (IIb), (III), (IVa) or (IVb):
    Type: Application
    Filed: June 30, 2008
    Publication date: July 29, 2010
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Hironobu Morishita, Yuichiro Kawamura
  • POLYCYCLIC RING ASSEMBLY COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE EMPLOYING THE SAME
    Publication number: 20100187512
    Abstract: Polycyclic ring assembly compound which has a specific flexible partial structure, i.e., a structure containing an aromatic ring in which adjacent carbon atoms have, bonded thereto, an aromatic ring group of another kind and an aliphatic group or aromatic ring group. Also provided are: a polymer constituted of repeating units at least part of which are structures derived from the polycyclic ring assembly compound; a solution of an organic EL material containing the polycyclic ring assembly compound or the polymer; and an organic electroluminescence device. The organic electroluminescence device has excellent heat resistance, high color purity, and a long lifetime and can emit a blue light or green light at a high luminescent efficiency. The polycyclic ring assembly compound realizes the device.
    Type: Application
    Filed: June 16, 2008
    Publication date: July 29, 2010
    Applicant: Idemitsu Kosan Co., Ltd
    Inventor: Mitsunori Ito
  • HEAT-TREATMENT OIL COMPOSITION
    Publication number: 20100186853
    Abstract: To provide a heat treatment oil composition which is obtained by mixing a base oil, (A) a metallic detergent-dispersant and (B) an aliphatic carboxylic acid having from 6 to 30 carbon atoms, has high cooling capacity, and is excellent in cooling capability although the composition has a high flash point.
    Type: Application
    Filed: July 11, 2008
    Publication date: July 29, 2010
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventor: Katsumi Ichitani
  • AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
    Publication number: 20100187511
    Abstract: An aromatic amine derivative having ring structures on the both sides of central double bond structure, an organic electroluminescence device including the aromatic amine derivative, and an organic electroluminescence material-containing solution including the aromatic amine derivative as one of organic electroluminescence materials and a solvent, the organic electroluminescence device having a long lifetime and high luminous efficiency and being capable of emitting blue light having a high color purity, and being realized with the aromatic amine derivative and the organic electroluminescence material-containing solution.
    Type: Application
    Filed: June 17, 2008
    Publication date: July 29, 2010
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Masakazu Funahashi, Shintaro Iwamoto, Mitsunori Ito, Yumiko Mizuki
  • ORGANIC EL DEVICE
    Publication number: 20100187517
    Abstract: 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 containing a first phosphorescent host and a first phosphorescent dopant. The first phosphorescent dopant emits light by receiving exited triplet energy transferred from the fluorescent host. The fluorescent host has a substituted or unsubstituted polycyclic fused aromatic skeleton and has an exited triplet energy gap of 2.10 eV to 3.00 eV.
    Type: Application
    Filed: July 4, 2008
    Publication date: July 29, 2010
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Kazuki Nishimura, Toshihiro Iwakuma, Masahiro Kawamura, Kenichi Fukuoka, Chishio Hosokawa, Masakazu Funahashi
  • LUBRICANT ADDITIVE AND LUBRICANT COMPOSITION
    Publication number: 20100190670
    Abstract: A lubricating oil additive contains at least one steroid derivative selected from steroid saturated fatty acid ester, steroid carbonate ester and steroid ether. A lubricating oil composition added with the lubricating oil additive exhibits a low friction coefficient and excellent wear resistance, heat resistance and oxidation resistance stability.
    Type: Application
    Filed: June 6, 2008
    Publication date: July 29, 2010
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Hiroki Sekiguchi, Tahei Okada
  • CYCLIC COMPOUND, PHOTORESIST BASE MATERIAL AND PHOTORESIST COMPOSITION
    Publication number: 20100190107
    Abstract: A cyclic compound shown by the following formula (I):
    Type: Application
    Filed: June 13, 2008
    Publication date: July 29, 2010
    Applicant: Idemitsu Kosan Co. Ltd
    Inventors: Mitsuru Shibata, Takanori Owada, Akinori Yomogita, Takashi Kashiwamura, Masashi Sekikawa, Norio Tomotsu, Hirotoshi Ishii
  • Water-dispersible resin composition and water-dispersible polyolefin resin composition
    Patent number: 7763677
    Abstract: A water dispersible resin composition capable of forming a flat and smooth coating film with a solidified surface upon application to a base material and excellent in storage stability is provided. It is a water dispersible resin composition comprising 0.01 to 5 parts by mass of a surfactant (C) relative to 100 parts by mass of a combination of 5 to 70% by mass of a side-chain crystalline resin (A) with 95 to 30% by mass of water (B) as well as a water dispersible polyolefin-based resin composition comprising a combination of 5 to 80% by mass of a modified side-chain crystalline polyolefin-based resin with 95 to 20% by mass of water, in which for example, a side-chain crystalline olefin-based polymer (G) obtained by polymerization of one kind or more of higher ?-olefins having 10 or more carbon atoms is modified with a radical initiator and an organic acid, organic acid anhydride or organic acid ester.
    Type: Grant
    Filed: July 4, 2006
    Date of Patent: July 27, 2010
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Masami Kanamaru, Masanori Sera, Yutaka Minami
  • Asymmetric pyrene derivative and organic electroluminescence device employing the same
    Patent number: 7763761
    Abstract: Asymmetric pyrene derivatives having specific structure. An organic EL device comprising at least one organic thin film layer including a light emitting layer sandwiched between a pair of electrode consisting of an anode and a cathode, wherein the organic thin film layer comprises at least one kind selected from the aforementioned asymmetric pyrene derivatives singly or as a component of mixture thereof. An organic EL device exhibiting a great efficiency of light emission and having a long lifetime, and also asymmetric pyrene derivatives for realizing the organic EL device are provided.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: July 27, 2010
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Mineyuki Kubota, Masakazu Funahashi, Chishio Hosokawa