Patents Assigned to Idemitsu Kosan Co., Ltd.
  • Patent number: 8748358
    Abstract: Provided is an additive for lubricating oils which enhances frictional characteristics of slide parts in internal combustion engines and driving system transmission engines and which exhibit an excellent fuel consumption reducing effect. The above additive for lubricating oils comprises a heterocyclic compound having a heterocyclic skeleton originating in a compound selected from pyridines, pyrroles, pyrimidines, pyrazoles, pyridazines, indazoles, pyrazines, triazines, triazoles, tetrazoles, oxazoles, oxadiazoles, thiazoles, thiadiazoles, furans, dioxanes, pyrans and thiophenes. A lubricating oil composition containing the above additive for lubricating oils is effectively used for various low friction slide members, antifriction bearings and slide bearings.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: June 10, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Hiroaki Koshima, Hideki Kamano
  • Patent number: 8748879
    Abstract: A semiconductor device, a thin film transistor, and a method for producing the same capable of decreasing the management cost, and capable of decreasing the production steps to reduce the production cost are proposed. A method for producing a thin film transistor 2 provided with a semiconductor which is composed of a prescribed material and serves as an active layer 41 and a conductor which is composed of a material having the same composition as that of the prescribed material and serves as at least one of a source electrode 51, a drain electrode 53 and a pixel electrode 55, which includes the steps of simultaneously forming into a film an object to be processed and a conductor (a source electrode 51, a source wire 52, a drain electrode 53, a drain wire 54 and a pixel electrode 55) which are composed of the amorphous prescribed material, followed by simultaneous shaping, and crystallizing the object to be processed which has been shaped to allow it to be the active layer 41.
    Type: Grant
    Filed: May 1, 2008
    Date of Patent: June 10, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Koki Yano, Kazuyoshi Inoue, Futoshi Utsuno, Masashi Kasami, Katsunori Honda
  • Publication number: 20140155307
    Abstract: [PROBLEMS] To provide a biodegradable lubricating oil composition which has excellent biodegradability, a high viscosity index, a low pour point, a high flash point, being satisfactory with lubricity, oxidative stability, property of preventing the corrosion of iron and non-ferrous metals, and suitability for use with sealing materials. [MEANS FOR SOLVING THE PROBLEMS] A biodegradable lubricating oil composition comprising (A) a synthetic ester base oil comprising at least 50 mass % hindered ester of an aliphatic monocarboxylic acid with an aliphatic hindered polyol which has one or more quaternary carbon atoms per molecule and in which at least one of the quaternary carbon atoms has one to four methylol groups bonded thereto and (B) ingredients which are (a) 0.1 to 5.0 mass % phenolic antioxidant, (b) 0.01 to 2.0 mass % calcium sulfonate having a low base number, and (c) 0.01 to 1.
    Type: Application
    Filed: February 10, 2014
    Publication date: June 5, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventor: Hiroshi KAWASAKI
  • Patent number: 8742526
    Abstract: A photoelectric conversion device including a substrate, a photoelectric conversion element including a first electrode, a second electrode and an organic compound layer and a sealing member that are disposed in this order. When a cross section of the photoelectric conversion device in a thickness direction is observed with the sealing member being placed at an upper side, a bonding member seals the organic compound layer at an outside thereof. An output electrode on the sealing member has a protrusion. A side conductive portion is electrically connected with the protrusion in an up-and-down direction. A substrate conductive member electrically connected with the first electrode and the second electrode extends to an outside of the bonding member. An electrical connecting member electrically connects the side conductive portion to the substrate conductive member at a further outside of the bonding member.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: June 3, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Hiroyuki Iwabuchi, Chishio Hosokawa, Ryo Naraoka
  • Patent number: 8741450
    Abstract: 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 layer comprising at least one layer and disposed between the anode and the cathode, wherein at least one layer in the organic thin film layer comprises the material for organic electroluminescence devices described above. The material can provide an organic electroluminescence device emitting bluish light with a high purity of color. The organic electroluminescence device uses the material.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: June 3, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Toshihiro Iwakuma, Hiroshi Yamamoto, Yoshio Hironaka, Hidetsugu Ikeda, Chishio Hosokawa, Seiji Tomita, Takashi Arakane
  • Publication number: 20140148550
    Abstract: A near-infrared absorption spectrum of a hydrogenated compound (hydrogenated petroleum resin) in a form of a molten resin from which a hydrogenation solvent is separated in a hydrogenation solvent removing step is measured to calculate an aromatic content ratio and a softening point as physical property values of the hydrogenated compound based on analytical curve data. At least one of a temperature, pressure, reaction time and hydrogen content in a hydrogenating portion is controlled such that a difference between the aromatic content ratio and the bromine number measured in the near-infrared spectrometry and an aromatic content ratio and bromine number of a target hydrogenated petroleum resin pellet becomes small. At least one of a temperature and pressure in a thin-film evaporator is controlled such that a difference between a softening point measured in the near-infrared spectrometry and a softening point of the target hydrogenated petroleum resin pellet becomes small.
    Type: Application
    Filed: May 31, 2012
    Publication date: May 29, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Takanori Hayashi, Hajime Takasugi, Makoto Kashima
  • Publication number: 20140144197
    Abstract: The present invention provides a lubricating oil for rolling, which contains a mineral oil and/or a synthetic oil as the main component and has a friction coefficient of 0.2 or more, and a rolling method using the lubricating oil for rolling.
    Type: Application
    Filed: July 25, 2012
    Publication date: May 29, 2014
    Applicants: Nissei Co., Ltd., IDEMITSU KOSAN CO., LTD.
    Inventors: Nobuhide Tanino, Akihiro Shishikura, Toshinaka Shinbutsu, Shuichi Amano, Shoichi Usunami, Shigeru Nagaki, Ryuichi Goto
  • Publication number: 20140144748
    Abstract: A plurality of buffer plates shaped in a plate project from an inclined surface of a chute of a transfer portion for transferring hydrogenated petroleum resin pellets in a manner that a planar direction of each of the buffer plates intersects with an inclination direction of the inclined surface. Hydrogenated petroleum resin pellets flowing on the inclined surface contact the buffer plates, so that a flow direction of the hydrogenated petroleum resin pellets is changed to reduce a flow speed of the hydrogenated petroleum resin pellets. By the reduction of the flow speed, impact applied on the flowing hydrogenated petroleum resin pellets is weakened, so that breakage due to the impact during transfer of the hydrogenated petroleum resin pellets can be inhibited.
    Type: Application
    Filed: May 31, 2012
    Publication date: May 29, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Hajime Takasugi, Morio Iwata
  • Publication number: 20140138664
    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: Application
    Filed: January 6, 2014
    Publication date: May 22, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Masahide MATSUURA, Chishio Hosokawa
  • Patent number: 8729284
    Abstract: A method for producing an anionized meso-form double-cross-linked ligand represented by formula (3), including: bringing a compound represented by formula (1) into contact with a compound represented by formula (2) at ?25° C. or less; and introducing an anionizing agent within 5 hours after the contact, wherein R1 to R10 are independently a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, or the like; A and A? are independently a cross-linking group containing an atom belonging to the 14th group of the periodic table; M and M? are independently an atom belonging to the 1st or the 2nd group of the periodic table.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: May 20, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Minoru Yabukami, Takuji Okamoto
  • Publication number: 20140131680
    Abstract: 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, and an electron transporting layer that is provided closer to the cathode than the phosphorescent-emitting layer. The host contains a substituted or unsubstituted polycyclic fused aromatic skeleton.
    Type: Application
    Filed: October 25, 2013
    Publication date: May 15, 2014
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Kazuki NISHIMURA, Toshihiro IWAKUMA, Kenichi FUKUOKA, Chishio HOSOKAWA, Jun ENDO, Nobuhiro YABUNOUCHI, Hiroshi YAMAMOTO
  • Publication number: 20140131681
    Abstract: Provided are an amine compound having a benzofluorene structure and further having a dibenzofuran structure and/or a dibenzothiophene structure, and an organic electroluminescent device containing a cathode, an anode and an organic thin film layer intervening between the cathode and anode, the organic thin film layer comprising one layer or plural layers comprising at least an emitting layer, at least one layer of the organic thin film layer comprising the aforementioned amine compound solely or as a component of a mixture.
    Type: Application
    Filed: November 1, 2013
    Publication date: May 15, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Hirokatsu ITO, Takeshi Ikeda
  • Publication number: 20140135461
    Abstract: A method for producing an olefin polymer including: polymerizing one or more ?-olefins each having 6 to 20 carbon atoms in the presence of a metallocene catalyst to obtain an olefin polymer; deactivating and decalcifying the catalyst to obtain a decalcified polymerization reaction liquid; mixing the decalcified polymerization reaction liquid containing the olefin polymer with water; and washing the liquid with stirring at a stirring intensity of 0.1 kW/m3 or more for 1 minute or longer.
    Type: Application
    Filed: June 28, 2012
    Publication date: May 15, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Jun Kohiruimaki, Masao Aida, Jun Mase, Kana Minamimoto
  • Publication number: 20140135241
    Abstract: The present invention is able to provide a lubricating oil composition for compression refrigerating machine having excellent thermal/chemical stability even when used for a compression refrigerating machine using a saturated fluorinated hydrocarbon refrigerant having a low carbon number and a low global warming potential, by using a refrigerant containing a saturated fluorinated hydrocarbon having from 1 to 3 carbon atoms, which uses, as a base oil, an oxygen-containing organic compound composed of at least one member selected from a polyoxyalkylene glycol, a polyvinyl ether, a copolymer of a poly(oxy)alkylene glycol and a polyvinyl ether, a copolymer of a poly(oxy)alkylene glycol monoether and a polyvinyl ether, and a polyol ester, each having a hydroxyl value of not more than 15 mgKOH/g.
    Type: Application
    Filed: June 28, 2012
    Publication date: May 15, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventor: Tomoya Matsumoto
  • Patent number: 8722602
    Abstract: Grease which includes a base oil containing at least 50% by mass of a specific diester compound of a glycol with a branched carboxylic acid, and a specific diurea compound as a thickener. The grease is excellent in low-temperature performance and has low oil separation tendency. In particular, when used in a rotation transmission device having a built-in one-way clutch, the grease can provide satisfactory clutch engagement performance (intermeshing) at low temperatures and is less apt to cause oil separation under high centrifugal force.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: May 13, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Yukitoshi Fujinami, Hitoshi Hata, Shinya Nakatani, Atsushi Yokouchi
  • Patent number: 8722595
    Abstract: The present invention provides a lubricating oil composition capable of achieving a lubricating property, a thermal stability, an oxidation stability, an anti-discoloring property and an anti-varnishing performance with a higher level by compounding a phosphorus compound having a specific structure in a base oil, as well as a lubricating oil composition for internal combustion engines which is excellent in wear resistance, high-temperature detergency and base number retention property although it has a low phosphorus content, a low sulfur content and a low sulfated ash content.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: May 13, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Hideki Kamano, Junichi Yagi, Hideto Kamimura
  • Patent number: 8723171
    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: Grant
    Filed: May 2, 2013
    Date of Patent: May 13, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Kazuki Nishimura, Yuichiro Kawamura, Toshinari Ogiwara, Hitoshi Kuma, Kenichi Fukuoka, Chishio Hosokawa
  • Patent number: 8723175
    Abstract: A field effect transistor including a semiconductor layer including a composite oxide which contains In, Zn, and one or more elements X selected from the group consisting of Zr, Hf, Ge, Si, Ti, Mn, W, Mo, V, Cu, Ni, Co, Fe, Cr, Nb, Al, B, Sc, Y and lanthanoids in the following atomic ratios (1) to (3): In/(In+Zn)=0.2 to 0.8??(1) In/(In+X)=0.29 to 0.99??(2) Zn/(X+Zn)=0.29 to 0.99??(3).
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: May 13, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Koki Yano, Hirokazu Kawashima, Kazuyoshi Inoue, Shigekazu Tomai, Masashi Kasami
  • Publication number: 20140128302
    Abstract: The present invention is able to provide a lubricating oil composition having excellent thermal/chemical stability even when used for a compression refrigerating machine using a saturated fluorinated hydrocarbon refrigerant having a low carbon number and a low global warming potential, by using a refrigerant containing a saturated fluorinated hydrocarbon having from 1 to 3 carbon atoms, which uses, as a base oil, an oxygen-containing organic compound composed of at least one member selected from a polyoxyalkylene glycol, a polyvinyl ether, a copolymer of a poly(oxy)alkylene glycol and a polyvinyl ether, a copolymer of a poly(oxy)alkylene glycol monoether and a polyvinyl ether, and a polyol ester, each having a water content of not more than 500 ppm by mass.
    Type: Application
    Filed: June 28, 2012
    Publication date: May 8, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventor: Tomoya Matsumoto
  • Publication number: 20140124763
    Abstract: The present invention relates to aromatic amine derivatives having a specific structure in which a substituted diphenylamino group is bonded to a pyrene structure; and organic electroluminescent devices comprising a cathode, an anode and one or plural organic thin film layers having at least a light emitting layer which are sandwiched between the cathode and the anode wherein at least one of the organic thin film layers contains the above material for organic electroluminescent devices in the form of a single substance or a component of a mixture. There are provided the material for organic electroluminescent devices exhibiting a long lifetime and a high efficiency of blue light emission, as well as the aromatic amine derivatives capable of realizing such organic electroluminescent devices.
    Type: Application
    Filed: October 31, 2013
    Publication date: May 8, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventor: Masakazu FUNAHASHI