Patents Assigned to Idemitsu Kosan Co., Ltd.
  • Patent number: 10854838
    Abstract: An organic EL apparatus includes a plurality of pixels including a first pixel and a second pixel, in which the first pixel has a first emitting layer containing a fluorescent first compound, the second pixel has a second emitting layer containing a delayed fluorescent second compound, and the first pixel and the second pixel share a common layer extending across the first pixel and the second pixel.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: December 1, 2020
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yuichiro Kawamura, Kazuki Nishimura
  • Patent number: 10854822
    Abstract: An organic EL device capable of driving at low voltage and having high emission efficiency and long lifetime and a material for organic EL devices which realize such an organic EL device are provided. The material for organic EL devices is a compound represented by formula (A1) or (B1): wherein R1 to R8, n1, m2, k3, k4, n5, m6, L0 to L2, and Ar are as defined in the description.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: December 1, 2020
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Tomoki Kato, Nobuhiro Yabunouchi, Masakazu Funahashi, Takahiro Fujiyama
  • Patent number: 10851055
    Abstract: A compound is represented by a formula (1) below, in which k is an integer of 0 or more, m is an integer of 1 or more, n is an integer of 2 or more. L is a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 30 ring carbon atoms, CN is a cyano group, and D1 and D2 are each independently represented by one of a formula (2), a formula (3) and formula (3x) below, D1 and D2 being optionally mutually the same or different.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: December 1, 2020
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Satomi Tasaki, Masahiro Kawamura, Toshinari Ogiwara, Hitoshi Kuma, Kei Yoshida, Keiji Okinaka
  • Publication number: 20200373612
    Abstract: Disclosed is a method for producing a sulfide-based solid electrolyte containing an alkali metal, a sulfur element, a phosphorus element and a halogen element, including performing a reaction of an alkali metal sulfide and a substance containing at least one element of a sulfur element, a phosphorus element and a halogen element in an organic solvent having an electron-withdrawing group. The method provides a sulfide-based solid electrolyte having a high ion conductivity.
    Type: Application
    Filed: March 12, 2018
    Publication date: November 26, 2020
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Hiroaki YAMADA, Takeshi MAKINO
  • Patent number: 10844205
    Abstract: A nonwoven fabric formed of an olefin-based resin composition (I) containing an olefin-based polymer (i) satisfying specific requirements; a spunbond nonwoven fabric obtained by melt-extruding and molding the olefin-based resin composition (I) at a resin temperature of 220° C. or lower, and a method for producing it; a multilayer nonwoven fabric containing the spunbond nonwoven fabric; a nonwoven fabric and a multilayer nonwoven fabric including composite fibers containing an olefin-based resin composition (II) containing an olefin-based polymer (ii) satisfying specific requirements; and a fiber product using the spunbond nonwoven fabric, the nonwoven fabric of composite fibers, or the multilayer nonwoven fabric.
    Type: Grant
    Filed: July 3, 2015
    Date of Patent: November 24, 2020
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yohei Koori, Tomoaki Takebe, Yutaka Minami, Takumi Sugiuchi
  • Patent number: 10844311
    Abstract: Provided are a lubricating oil composition containing a mineral oil (1) having a kinematic viscosity at 100° C. of 2 mm2/s or more and less than 2.5 mm2/s, and a polymethacrylate (2) having a functional group containing an oxygen atom in the molecule while having a specific structural, unit, which satisfies both high viscosity index and high shear stability, and a lubrication method and a transmission using the lubricating oil composition.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: November 24, 2020
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventor: Tatsuya Hamachi
  • Publication number: 20200362104
    Abstract: Provided is a polycarbonate-based resin composition, including: 50 mass % or more to 99 mass % or less of a polycarbonate-based resin (S) containing 0.1 mass % or more to 100 mass % or less of a polycarbonate-polyorganosiloxane copolymer (A), which contains a polycarbonate block (A-1) formed of a specific repeating unit and a polyorganosiloxane block (A-2) containing a specific repeating unit, and 0 mass % or more to 99.9 mass % or less of an aromatic polycarbonate-based resin (B) except the polycarbonate-polyorganosiloxane copolymer (A); 1 mass % or more to 50 mass % or less of a polyester-based resin (C); and 0.001 part by mass or more to 1 part by mass or less of an amide compound (D) with respect to 100 parts by mass of a total amount of the polycarbonate-based resin (S) and the polyester-based resin (C).
    Type: Application
    Filed: September 6, 2018
    Publication date: November 19, 2020
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventor: Yasuhiro ISHIKAWA
  • Publication number: 20200365812
    Abstract: An organic electroluminescence device includes: an anode; an emitting layer; and a cathode. The emitting layer contains a first compound and a second compound, the first compound being a delayed fluorescent compound, the second compound being a compound represented by a formula (2).
    Type: Application
    Filed: August 17, 2018
    Publication date: November 19, 2020
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Kei YOSHIZAKI, Ryota TAKAHASHI, Toshinari OGIWARA, Yuichiro KAWAMURA
  • Publication number: 20200365811
    Abstract: An organic electroluminescence device includes an anode, a cathode, and at least one organic layer provided between the anode and the cathode, in which the at least one organic layer contains a first compound represented by a formula (1) and a second compound represented by a formula (2). In the formula (1), A1 is a substituted or unsubstituted nitrogen-containing heterocyclic group having 5 to 24 ring atoms, and L1 is a single bond, a substituted or unsubstituted divalent aryl group having 6 to 24 ring carbon atoms or a substituted or unsubstituted divalent heterocyclic group having 5 to 24 ring atoms. In the formula (2), X1 is an oxygen atom or a sulfur atom.
    Type: Application
    Filed: August 20, 2018
    Publication date: November 19, 2020
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Masahiro KAWAMURA, Tetsuya MASUDA, Kazuki NISHIMURA
  • Publication number: 20200365808
    Abstract: An organic electroluminescence device, comprising: a cathode; an anode; and at least one organic layer disposed between the cathode and the anode, wherein the emitting layer comprises a compound represented by the following formula (1) and a compound represented by the following formula (A1).
    Type: Application
    Filed: May 12, 2020
    Publication date: November 19, 2020
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yuki NAKANO, Taro YAMAKI, Satomi TASAKI, Tomoki KATO
  • Patent number: 10840456
    Abstract: A compound represented by formula (1): wherein each symbol is as defined in the specification, provides a high performance organic electroluminescence device which comprises a cathode, an anode and an organic layer between the cathode and the anode, wherein the organic layer comprises a light emitting layer and at least one layer of the organic layer comprises the compound.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: November 17, 2020
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Tasuku Haketa, Hirokatsu Ito, Yu Kudo
  • Patent number: 10836973
    Abstract: A refrigerator oil that is excellent in thermal stability and oxidation stability is provided. The refrigerator oil contains at least one compound selected from the group consisting of a polyvinyl ether compound, a polyoxyalkylene glycol compound, and a polyol ester compound and has a Hazen color number according to ASTM D1209-05 of 0 to 10.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: November 17, 2020
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventor: Masato Kaneko
  • Publication number: 20200358132
    Abstract: Provided are a metal element-containing sulfide solid electrolyte having an effect of suppressing hydrogen sulfide generation and capable of expressing excellent working environments, and a method for producing it. The metal element-containing sulfide solid electrolyte contains a lithium element, a sulfur element, a phosphorus element, a halogen element, and at least one metal element selected from metal elements of Groups 2 to 12 and Period 4 or higher of the Periodic Table, in which the molar ratio of the lithium element to the phosphorus element (Li/P) is 2.4 or more and 12 or less, and the molar ratio of the sulfur element to the phosphorus element (S/P) is 3.7 or more and 12 or less.
    Type: Application
    Filed: November 14, 2018
    Publication date: November 12, 2020
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventor: Hiroaki YAMADA
  • Publication number: 20200354648
    Abstract: A water-soluble quenching fluid composition prepared by blending: water, at least one kind selected from a polyoxyalkylene glycol and a derivative thereof (A), and an alkylene glycol ether (B), the polyoxyalkylene glycol or a derivative thereof (A) having a mass average molecular weight of 10,000 or more and 100,000 or less, the alkylene glycol ether (B) having a solubility in 100 mL of water at 20° C. of 2.0 g/100 mL-H2O or less and a molecular weight per 1 mol of 1,000 g/mol or less.
    Type: Application
    Filed: March 31, 2017
    Publication date: November 12, 2020
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Katsumi ICHITANI, Rikki HOMMA
  • Patent number: 10833201
    Abstract: A field effect transistor including: a substrate, and at least gate electrode, a gate insulating film, a semiconductor layer, a protective layer for the semiconductor layer, a source electrode and a drain electrode provided on the substrate, wherein the source electrode and the drain electrode are connected with the semiconductor layer therebetween, the gate insulating film is between the gate electrode and the semiconductor layer, the protective layer is on at least one surface of the semiconductor layer, the semiconductor layer includes an oxide containing In atoms, Sn atoms and Zn atoms, the atomic composition ratio of Zn/(In+Sn+Zn) is 25 atom % or more and 75 atom % or less, and the atomic composition ratio of Sn/(In+Sn+Zn) is less than 50 atom %.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: November 10, 2020
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Koki Yano, Hirokazu Kawashima, Kazuyoshi Inoue
  • Patent number: 10829711
    Abstract: Provided is a grease containing a base oil and a hydrophilic nanofiber, the hydrophilic nanofiber having a thickness (d) of 0.01 to 500 nm being dispersed therein. The grease is low in an environmental load and excellent in safety on the human body and also has an appropriate worked penetration and has a high dropping point, and therefore, it is also excellent in heat resistance.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: November 10, 2020
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yusuke Nakanishi, Hiromu Kumagai
  • Patent number: 10833281
    Abstract: An organic electroluminescence composition including two or more compounds each having a specific structure combining a hole transporting ability and an electron transporting ability; an organic electroluminescence composition including one or more compounds each having a specific structure combining a hole transporting ability and an electron transporting ability and a different compound having an electron transporting skeleton; and a material for organic electroluminescence devices, a solution of a material for organic electroluminescence devices and an organic electroluminescence device, each including the aromatic heterocyclic derivative.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: November 10, 2020
    Assignees: IDEMITSU KOSAN CO., LTD., JOLED Inc.
    Inventors: Hironori Kawakami, Masakazu Funahashi, Tadahiko Yoshinaga, Hiroaki Toyoshima
  • Publication number: 20200339903
    Abstract: The present invention relates to a lubricating oil composition containing a base oil (A) containing an olefin-based polymer (A1) having an area ratio of a peak derived from a hydride (A11) of a decene trimer of 80% or more relative to 100% of a total area of peaks derived from the olefin-based polymer (A1) detected in a chromatogram and having predetermined kinematic viscosity, flash point, and pour point, a viscosity index improver (B) containing a comb-shaped polymer (B1), and an organic molybdenum-based compound (C), in which the content of the comb-shaped polymer (B1) is regulated within a specified range and having a HTHS viscosity at each of 150° C. and 50° C. of the lubricating oil composition and a NOACK value in predetermined ranges, respectively.
    Type: Application
    Filed: August 3, 2018
    Publication date: October 29, 2020
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventor: Hiroshi OKI
  • Patent number: 10815447
    Abstract: Provided is a lubricating oil composition for electric vehicle or hybrid vehicle having excellent gear properties, clutch properties, cooling properties, and electric insulating properties. The lubricating oil composition for electric vehicle or hybrid vehicle preparing by blending (A) a base oi and (B-1) a polyamide and/or (B-2) a polyol ester, the base oil (A) including (A-1) a synthetic oil having a kinematic viscosity at 100° C. of 1.0 to 10.0 mm2/s.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: October 27, 2020
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventor: Kayoko Aoyama
  • Patent number: 10818966
    Abstract: Aimed at providing a sulfide solid electrolyte comprising an argyrodite type crystal structure, having a high ionic conductivity due to presence of a large amount of a halogen element and is capable of suppressing agglomeration at the time of production. Provided is a sulfide solid electrolyte comprising lithium, phosphorus, sulfur and one or more elements X selected from halogen elements, wherein the sulfide solid electrolyte comprises an argyrodite type crystal structure, and wherein a molar ratio of the lithium to the phosphorus “a (Li/P)”, a molar ratio of the sulfur to the phosphorus “b (S/P)” and a molar ratio of the element X to the phosphorus “c (X/P)” satisfy the following formulas (1) to (3): 5.0?a<7.3??(1) 0.70?a?b<1.0??(2) 7.0<a+c?7.3??(3) provided that b>0 and c>0.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: October 27, 2020
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Futoshi Utsuno, Kota Terai