Patents Assigned to Idemitsu Kosan Co., Ltd.
  • ORGANIC ELECTROLUMINESCENCE DEVICE
    Publication number: 20140061622
    Abstract: An organic electroluminescence device according to the invention includes: a cathode; an anode; and an organic layer being interposed between the cathode and the anode, the organic layer comprising one or more layers comprising at least an emitting layer. The emitting layer contains: an anthracene derivative represented by a formula (1) below; and a pyrene derivative represented by a formula (21) below.
    Type: Application
    Filed: August 30, 2013
    Publication date: March 6, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Takeshi IKEDA, Hirokatsu Ito
  • CATALYST FOR PRODUCING AN OLEFIN FROM AN ALCOHOL, METHOD FOR PRODUCING OLEFIN, POLYOLEFIN, AND OLEFIN OXIDE
    Publication number: 20140065059
    Abstract: Disclosed are a catalyst for producing, from an alcohol, an olefin whose number of carbon atoms is at least one more than the number of carbon atoms of the alcohol, wherein at least the surface of the catalyst is substantially composed of zirconium oxide; a method for producing an olefin using the same; and so on.
    Type: Application
    Filed: December 7, 2011
    Publication date: March 6, 2014
    Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED, TOKYO INSTITUTE OF TECHNOLOGY, IDEMITSU KOSAN CO., LTD.
    Inventors: Tetsuo Suzuki, Takahiro Kakinuma, Hiroshi Ohashi, Masakazu Iwamoto
  • ORGANIC SEMICONDUCTOR MATERIAL, COATING LIQUID CONTAINING THE MATERIAL, AND ORGANIC THIN FILM TRANSISTOR
    Publication number: 20140061616
    Abstract: An organic semiconductor material is represented by the following formula (1), wherein two or more of R1 to R6 are an alkyl group.
    Type: Application
    Filed: December 23, 2011
    Publication date: March 6, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Misa Sunagawa, Masatoshi Saito, Hidetsugu Ikeda, Yoichi Ikeda, Hirofumi Kondo, Kota Terai
  • FUSED AROMATIC DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME
    Publication number: 20140061628
    Abstract: A fused aromatic derivative shown by the following formula (1): wherein Ra and Rb are independently a hydrogen atom or a substituent, p is an integer of 1 to 8 and q is an integer of 1 to 11, and when p and q are two or more, Ras and Rbs may be independently the same or different, and adjacent substituents Ras may form a ring, L1 is a single bond or a substituted or unsubstituted divalent linking group, and Ar1 is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms or a substituted or unsubstituted heteroaryl group having 5 to 50 ring atoms, provided that when L1 is a single bond and at least one of Ras is not a hydrogen atom, Ar1 is not a triphenylenyl group, and provided that substituents of L1 and Ar1, and Ra and Rb contain no amino group.
    Type: Application
    Filed: October 28, 2013
    Publication date: March 6, 2014
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventor: Masahiro KAWAMURA
  • ORGANIC EL ELEMENT AND SOLUTION CONTAINING ORGANIC EL MATERIAL
    Publication number: 20140061627
    Abstract: An organic electroluminescence device (1) includes: an anode (3); a cathode (4); and an organic thin-film layer (10) interposed between the anode (3) and the cathode (4). The organic thin-film layer (10) includes a phosphorescent-emitting layer (5) containing a host and a phosphorescent dopant. The host contains a first host and a second host. The first host includes a substituted or unsubstituted polycyclic fused aromatic skeleton, the skeleton having 10 to 30 ring-forming atoms not including an atom of a substituent.
    Type: Application
    Filed: October 23, 2013
    Publication date: March 6, 2014
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Kazuki NISHIMURA, Toshihiro IWAKUMA, Kenichi FUKUOKA, Chishio HOSOKAWA
  • AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE DEVICE
    Publication number: 20140061630
    Abstract: An aromatic amine derivative having a specific structure. An organic electroluminescence device which is composed of one or more organic thin film layers sandwiched between a cathode and an anode, wherein at least one of the organic thin film layers, especially a hole transporting layer, contains the aromatic amine derivative. The aromatic amine derivative has at least one substituted or unsubstituted dibenzofuran skeleton and at least one substituted or unsubstituted terphenylene skeleton. Because the molecules in the aromatic amine derivate hardly crystallize, organic electroluminescence devices improving their production yield and having prolonged lifetime are provided.
    Type: Application
    Filed: November 7, 2013
    Publication date: March 6, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventor: Nobuhiro YABUNOUCHI
  • Indium oxide sintered compact and sputtering target
    Patent number: 8664136
    Abstract: A sintered body includes an indium oxide crystal, and an oxide solid-dissolved in the indium oxide crystal, the oxide being oxide of one or more metals selected from the group consisting of aluminum and scandium, the sintered body having an atomic ratio “(total of the one or more metals)/(total of the one or more metals and indium)×100)” of 0.001% or more and less than 45%.
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: March 4, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Kazuyoshi Inoue, Futoshi Utsuno, Hirokazu Kawashima, Koki Yano, Shigekazu Tomai, Masashi Kasami, Kota Terai
  • Device for evaluating degree of degradation of lubricating oil
    Patent number: 8664966
    Abstract: A method of evaluation a degree of degradation of a lubricating oil, comprising: using a device for evaluating a degree of degradation of a lubricating oil, the device comprising a pH-ISFET which is free from a reference electrode; and measuring a current flowing between a drain and a source of the pH-ISFET with a first circuit wherein a constant voltage is applied between the drain and the source, or measuring a voltage between a drain and a source with a second circuit wherein a constant current is caused to flow between the drain and the source.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: March 4, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventor: Tadashi Katafuchi
  • LUBRICATING OIL COMPOSITION
    Publication number: 20140051618
    Abstract: The lubricating oil composition contains a base oil; (A) an acidic alkyl phosphate ester having a C6 to C20 alkyl group; (B) a dialkylamine and/or a trialkylamine; and (C) (c-1) a sulfur compound in an amount of 0.2 to 0.6 mass % as reduced to S, the sulfur compound containing no poly-sulfur bond which is equal to or longer than —S—S—S— in a molecule thereof and having an S content of the molecule of 15 mass % or more and (c-2) an optional thiophosphoric acid trihydrocarbyl ester in an amount of 0.1 to 1.0 mass %, the ester being represented by formula (I): (R—O—)3P?S??(I) (wherein R represents a C6 to C20 hydrocarbyl group) and having a P content of the composition of 150 to 500 ppm by mass The lubricating oil composition has excellent anti-seizure performance, excellent anti-fatigue performance (e.g., anti-FZG-micropitting performance), and reduced sludge formation in an oxidation test.
    Type: Application
    Filed: October 25, 2013
    Publication date: February 20, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventor: Tahei OKADA
  • BISCARBAZOLE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT ELEMENT USING SAME
    Publication number: 20140048784
    Abstract: A biscarbazole derivative having a specific group, which is represented by formula (1): and an organic electroluminescence device in which a plurality of organic thin-film layers including a light emitting layer are disposed between a cathode and an anode, and at least one of the organic thin-film layers include the biscarbazole derivative. The organic electroluminescence device exhibits high emission efficiency and has a long lifetime. In formula (1), each of A1 and A2 independently represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms; each of Y1 to Y16 independently represents C(R) or a nitrogen atom; each of R groups independently represents a hydrogen atom, etc.; and each of L1 and L2 independently represents a single bond, etc.; provided that at least one of A1, A2 and R represents a substituted or unsubstituted fluoranthenyl group, etc.
    Type: Application
    Filed: February 6, 2012
    Publication date: February 20, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Tetsuya Inoue, Mitsunori Ito, Kumiko Hibino, Kazuki Nishimura, Kiyoshi Ikeda
  • Biscarbazole derivative, material for organic electroluminescence device and organic electroluminescence device using the same
    Patent number: 8652654
    Abstract: A biscarbazole derivative of the invention is represented by a formula (1) below. In the formula (1): A1 represents a substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; A2 represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; X1 and X2 each are a linking group; Y1 to Y4 each represent a substituent; p and q represent an integer of 1 to 4; and r and s represent an integer of 1 to 3.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: February 18, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Tetsuya Inoue, Mitsunori Ito, Kei Yoshida, Kumiko Hibino, Kazuki Nishimura, Toshinari Ogiwara, Kiyoshi Ikeda
  • Organic electroluminescence display device and method for driving the same
    Patent number: 8654043
    Abstract: In an organic electroluminescence display device (30) comprising an organic EL element (26) having a structure wherein an organic luminescent medium (24) is sandwiched between a top electrode (20) and a bottom electrode (22), and a driving circuit (14) for driving the organic EL element (26), the organic luminescent medium (24) comprises a host compound and a triplet-related luminous compound and the driving circuit (14) applies a electric pulse voltage or pulse current having a frequency of 30 Hz or more and a duty ratio of 1/5 or less. In this way, it is possible to provide an organic EL display device which consumes a low electric power and has a long luminous life span, and a method for driving the same.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: February 18, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Masahide Matsuura, Chishio Hosokawa
  • GREASE COMPOSITION AND MOTION GUIDING DEVICE LUBRICATED BY GREASE COMPOSITION
    Publication number: 20140045733
    Abstract: The grease composition for a clean environment includes, a base oil, a thickener and a extreme-pressure agent, in which a kinetic viscosity of the base oil at 40° C. is 100˜300 mm2/s, the thickener comprising a lithium complex soap, a content of the thickener is 10˜40 mass % with respect to the total amount of the grease composition.
    Type: Application
    Filed: April 11, 2012
    Publication date: February 13, 2014
    Applicants: IDEMITSU KOSAN CO., LTD., THK CO., LTD.
    Inventors: Akira Nogami, Terumoto Hayami, Hiroshi Sampei, Yukitoshi Fujinami, Kouji Takane
  • Oxide sintered body and sputtering target
    Patent number: 8647537
    Abstract: An oxide sintered body includes indium oxide and gallium solid-solved therein, the oxide sintered body having an atomic ratio “Ga/(Ga+In)” of 0.001 to 0.12, containing indium and gallium in an amount of 80 atom % or more based on total metal atoms, and having an In2O3 bixbyite structure.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: February 11, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Futoshi Utsuno, Kazuyoshi Inoue, Hirokazu Kawashima, Masashi Kasami, Koki Yano, Kota Terai
  • Lubricating oil for refrigerator and hydraulic fluid composition for refrigerator using the same
    Patent number: 8648022
    Abstract: The present invention proposes a lubricating oil for refrigerators comprising, as the base oil, a polyester-based derivative or a polyvinyl ether derivative and a polycarbonate-based oxygenated compound; a polyoxyalkylene glycol derivative; or a polyester-based derivative or a polyvinyl ether derivative and a polyoxyalkylene glycol derivative. The lubricating oil exhibits excellent miscibility with a refrigerant having one carbon atom and no chlorine atoms and, in particular, with difluoromethane and provides a hydraulic fluid composition exhibiting excellent antiwear, lubricity and stability.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: February 11, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Kenji Mogami, Hirotaka Yamazaki, Naoko Tazaki
  • Optical semiconductor sealing material
    Patent number: 8648160
    Abstract: The present invention provides an optical semiconductor sealing material comprising a radically polymerized polymer of a methacrylate ester having an alicyclic hydrocarbon group containing 7 or more carbon atoms, e.g. an adamantyl group, a norbornyl group, or a dicyclopentanyl group; and an optical semiconductor sealing material comprising a radically polymerized polymer of 50 to 97 mass % of the methacrylate ester and 3 to 50 mass % of acrylate ester having a hydroxyl group. The optical semiconductor sealing material of the present invention is highly transparent and stable to UV light and thus does not undergo yellowing. In addition, the material exhibits excellent compatibility between heat resistance and refractive index, does not undergo deformation or cracking during heating processes such as reflow soldering, and shows high processability.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: February 11, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Tomoaki Takebe, Tsuyoshi Ota, Yutaka Obata, Hiroyuki Higuchi
  • Aromatic diamine derivative and organic electroluminescent device using the same
    Patent number: 8647754
    Abstract: Disclosed is an aromatic diamine derivative represented by the following general formula (I), which has a chrysene structure in which a phenyl group having a substituted or unsubstituted silyl group is a substituent for an amino group. Also disclosed is an organic electroluminescence device including an organic thin film layer formed of one or more layers including at least a light emitting layer and interposed between a cathode and an anode, in which at least one layer of the organic thin film layer contains the aromatic diamine derivative by itself or as a component of a mixture, the device having a long lifetime and high luminous efficiency.
    Type: Grant
    Filed: December 25, 2008
    Date of Patent: February 11, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Yumiko Mizuki, Masakazu Funahashi, Masahiro Kawamura, Mitsunori Ito
  • In—Ga—Zn type oxide sputtering target
    Patent number: 8641930
    Abstract: A sputtering target including oxide A shown below and indium oxide (In2O3) having a bixbyite crystal structure: Oxide A: an oxide which includes an indium element (In), a gallium element (Ga) and a zinc element (Zn) in which diffraction peaks are observed at positions corresponding to incident angles (2?) of 7.0° to 8.4°, 30.6° to 32.0°, 33.8° to 35.8°, 53.5° to 56.5° and 56.5° to 59.5° in an X-ray diffraction measurement (CuK? rays).
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: February 4, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Koki Yano, Masayuki Itose, Mami Nishimura
  • Thin film transistor manufacturing method, thin film transistor, thin film transistor substrate and image display apparatus, image display apparatus and semiconductor device
    Patent number: 8642402
    Abstract: To provide a method for producing a thin film transistor improved in stability, uniformity, reproducibility, heat resistance, durability or the like, a thin film transistor, a thin film transistor substrate, an image display apparatus, an image display apparatus and a semiconductor device. In the semiconductor device, a crystalline oxide is used as an N-type transistor and the electron carrier concentration of the crystalline oxide is less than 2×1017/cm3. Furthermore, the crystalline oxide is a polycrystalline oxide containing In and one or more positive divalent elements selected from Zn, Mg, Cu, Ni, Co and Ca, and the atomic ratio In [In] and the positive divalent element [X][X]/([X]+[In]) is 0.0001 to 0.13.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: February 4, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Koki Yano, Kazuyoshi Inoue, Futoshi Utsuno, Masashi Kasami
  • Sintered complex oxide and sputtering target comprising same
    Patent number: 8641932
    Abstract: A composite oxide sintered body includes In2Ga2ZnO7 having a homologous crystal structure, and has a relative density of 90% or more, and an average crystal grain size of 10 ?m or less.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: February 4, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Koki Yano, Hirokazu Kawashima