Patents Assigned to Idemitsu Kosan Co., Ltd.
  • Publication number: 20240215447
    Abstract: An organic electroluminescence device may include an emitting layer between an anode and a cathode, in which the emitting layer contains a first compound that fluoresces, a second compound that exhibits delayed fluorescence, and a third compound. The first compound may have formula (1): the second compound may have formula (2): the third compound may have formula (3): , and a singlet energy of the first compound S1(M1), a singlet energy of the second compound S1(M2), and a singlet energy of the third compound S1(M3) satisfy a Inequality S1(M3)>S1(M2)>S1(M1) ??(Eq. 1).
    Type: Application
    Filed: February 16, 2022
    Publication date: June 27, 2024
    Applicants: IDEMITSU KOSAN CO.,LTD., TORAY INDUSTRIES, INC.
    Inventors: Hiromi NAKANO, Hisato MATSUMOTO, Takushi SHIOMI, Toshinari OGIWARA, Keiichi YASUKAWA, Kazunari KAWAMOTO, Takashi TOKUDA, Kazumasa NAGAO
  • Patent number: 12022728
    Abstract: The compound represented by formula (1): wherein A, B, R1, and R2 are as defined in the description, provides organic electroluminescence (EL) devices having a high emission efficiency when operated at low voltage and a long lifetime and electronic devices including such organic EL devices.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: June 25, 2024
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Ryota Takahashi, Tomoki Kato, Hirokatsu Ito, Masahiro Kawamura, Masakazu Funahashi, Hiroyuki Saito, Yuichiro Kawamura, Yoshiaki Takahashi, Tetsuya Masuda, Hitoshi Kuma
  • Patent number: 12018182
    Abstract: The present invention relates to a thermoplastic resin composition containing a base polymer containing a propylene-based polymer (A) in which a melting endotherm (?H-D) is 0 J/g or more and 60 J/g or less, and a melting point (Tm-D) is not observed or is 0° C. or higher and 120° C. or lower; and a propylene-based polymer (C) in which a melting endotherm (?H-D) is 20 J/g or more and 120 J/g or less, and a melting point (Tm-D) is higher than 120° C., the content of the propylene-based polymer (C) being 0.5 parts by mass or more and 100 parts by mass or less relative to 100 parts by mass of the content of the propylene-based polymer (A).
    Type: Grant
    Filed: September 2, 2019
    Date of Patent: June 25, 2024
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Nozomu Fujii, Masami Kanamaru, Asami Koga
  • Publication number: 20240199849
    Abstract: The present invention relates to a polycarbonate-based resin composition including: a polycarbonate-based resin (A); and a perfluoroalkylsulfonimide (B) represented by the following formula (1), wherein the polycarbonate-based resin (A) has a branching ratio of 0.30 mol % or more and 3.0 mol % or less, which is calculated from the expression “(number of moles of structural unit derived from branching agent)/(number of moles of structural unit derived from dihydric phenol+number of moles of structural unit derived from branching agent+number of moles of terminal unit)×100,” and wherein a content of the perfluoroalkylsulfonimide (B) is 0.05 part by mass or more and 2.0 parts by mass or less with respect to 100 parts by mass of the polycarbonate-based resin (A).
    Type: Application
    Filed: March 31, 2022
    Publication date: June 20, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Misako MATSUDA, Kenichi MITSUHASHI, Shuya NAGAYAMA
  • Publication number: 20240206325
    Abstract: A compound represented by the following formula (1), wherein in the formula (1), A is a substituted or unsubstituted aromatic hydrocarbon ring group containing a nitrogen atom as a part of a substituent and having a fused ring composed of 5 or more rings, or a substituted or unsubstituted heterocyclic group containing a nitrogen atom as a part of the skeleton or a substituent and having a fused ring composed of 5 or more rings; B is a monovalent group represented by the following formula (b1); wherein in the formula (b1), *B is bonded with the nitrogen atom contained as a part of the skeleton of A or a substituent via a single bond.
    Type: Application
    Filed: March 10, 2022
    Publication date: June 20, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yoshinao SHIRASAKI, Kazuma MASE, Hiroaki ITOI
  • Publication number: 20240199971
    Abstract: A lubricating oil composition, containing a base oil (A), an aromatic carboxylic acid ester having one or more hydroxyl groups (B), and a sulfur-based antioxidant (C). A content of phosphorus atoms is 0.06% by mass or less, based on a total amount of the lubricating oil composition, and a sulfated ash content is 0.6% by mass or less, based on the total amount of the lubricating oil composition.
    Type: Application
    Filed: March 2, 2022
    Publication date: June 20, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventor: Yasunori SHIMIZU
  • Publication number: 20240199782
    Abstract: A thermosetting composition comprising: (A) a di(meth)acrylate compound having a structural unit represented by the formula (A1), (B) a thermal polymerization initiator, and (E) an inorganic filler.
    Type: Application
    Filed: April 6, 2022
    Publication date: June 20, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yutaka OBATA, Yasunari OKADA, Katsuki ITO, Kazuki WATANABE
  • Publication number: 20240199972
    Abstract: An object of the present invention is to provide a lubricating oil composition which, even while exhibiting an excellent friction reducing effect by combining plural types of molybdenum-based friction modifiers, has excellent high-temperature detergency, oxidation stability and copper corrosion resistance. The object has been achieved by a lubricating oil composition containing a base oil (A), a molybdenum-based friction modifier (B), a metal-based detergent (C), and an ash-free dispersant (D), wherein the molybdenum-based friction modifier (B) contains two or more selected from the group consisting of a binuclear molybdenum dithiocarbamate (B1), a trinuclear molybdenum dithiocarbamate (B2), and a molybdenum-amine complex (B3); the metal-based detergent (C) contains a sulfur atom; the ash-free dispersant (D) contains a nitrogen atom; the acid value derived from the binuclear molybdenum dithiocarbamate (B1) and the trinuclear molybdenum dithiocarbamate (B2) is less than 0.
    Type: Application
    Filed: March 17, 2022
    Publication date: June 20, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Kenji SUNAHARA, Shoichiro FUJITA, Masaya KUBOTA
  • Publication number: 20240199975
    Abstract: Provided is a lubricating oil composition which has an excellent effect of reducing the friction coefficient even when a member having a low surface roughness in a low oil temperature region is lubricated, by means of a lubricating oil composition which contains a mineral base oil (A), a polymer (B) having a weight average molecular weight (Mw) of 100 to 15,000, and a molybdenum-based friction modifier (M) and has a kinematic viscosity at 40° C. of 35.0 mm2/s or less.
    Type: Application
    Filed: February 25, 2022
    Publication date: June 20, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Kenji SUNAHARA, Shoichiro FUJITA
  • Patent number: 12012389
    Abstract: A compound represented by the following formula (1): The R1 to R9, L1 to L3, and Ar1 to Ar2 in the formula (1) are as defined in the description. An organic electroluminescence device contains the compound, and an electronic instrument includes the organic electroluminescence device.
    Type: Grant
    Filed: June 6, 2023
    Date of Patent: June 18, 2024
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yusuke Takahashi, Tasuku Haketa, Shota Tanaka
  • Patent number: 12012567
    Abstract: A lubricating oil composition comprising a base oil, a zinc dialkyldithiophosphate, and a sarcosine derivate is described. The lubricating oil composition may comprise the zinc dialkyldithiophosphate at a concentration of 0.10 to 10 mass % and the sarcosine derivate at a concentration of 0.01 to 5.0 mass %. The lubricating oil composition may have a kinematic viscosity at 100° C. of 6.5 mm2/s or less, and can be used for lubricating a speed reducer.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: June 18, 2024
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventor: Kazushige Matsubara
  • Patent number: 12012566
    Abstract: A motor configured to power an electric or hybrid vehicle, comprising a lubricant oil composition including a polyalkylene glycol (PAG) base oil, at least one of a poly-alpha-olefin (PAO) and an ester, and an additive package that includes at least a sulfur-based extreme pressure agent.
    Type: Grant
    Filed: November 2, 2022
    Date of Patent: June 18, 2024
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Pedro Cawich, Takashi Yanagihara
  • Publication number: 20240191154
    Abstract: A lubricating oil composition for a gas engine containing: a base oil (A), at least one overbased calcium detergent (B) selected from the group consisting of calcium salicylate (B1) and calcium phenate (B2), alkenyl succinimide (C), and a hindered amine-based antioxidant (D), where the content (X) of calcium atoms derived from the component (B) is less than 0.090% by mass based on the total amount of the lubricating oil composition; the content (Y) of calcium carbonate contained in the component (B) is 0.060% by mass or more based on the total amount of the lubricating oil composition; the content of boron atoms derived from the component (C) is less than 0.020% by mass based on the total amount of the lubricating oil composition, and the content of the component (D) is more than 0.20% by mass based on the total amount of the lubricating oil composition.
    Type: Application
    Filed: March 2, 2022
    Publication date: June 13, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Tatsuya KUSUMOTO, Moritsugu KASAI
  • Publication number: 20240191047
    Abstract: A polymer ion exchange membrane including an ion exchange resin (A) having a basic site density DA and an ion exchange resin (B) having a basic site density DB, wherein a difference (DA—DB) between the basic site density DA and the basic site density DB is 0.3 mmol/cm3 or more.
    Type: Application
    Filed: March 8, 2022
    Publication date: June 13, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Hiroyuki KANEKO, Qingxin JIA
  • Publication number: 20240182316
    Abstract: A method for producing a lithium compound, by which a high purity lithium compound can be produced from low-grade lithium carbonate containing impurities, such as salt water. The method includes: mixing lithium carbonate, an acid containing an organic acid, and water in a reaction tank 1 to produce an aqueous organic acid lithium solution containing an organic acid lithium; mixing the organic acid lithium and a metal hydroxide in a reaction tank 2 to produce an aqueous lithium hydroxide solution; and returning an organic acid, which is regenerated by using an electrochemical device from an organic acid metal by-produced by producing the aqueous lithium hydroxide solution to the reaction tank 1 and using the regenerated organic acid as the organic acid. An apparatus for producing a lithium compound, including the reaction tank 1, the reaction tank 2, the electrochemical device, and a return pipe, which each have a specific function.
    Type: Application
    Filed: April 1, 2022
    Publication date: June 6, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Hideki YAMAMOTO, Futoshi UTSUNO, Daisuke MORI, Hiroyuki HIGUCHI
  • Publication number: 20240188438
    Abstract: An organic electroluminescence device may include an anode, a cathode, and an emitting layer provided between the anode and the cathode, in which the emitting layer contains a delayed fluorescent compound M2 and a compound M3 of formula (1) wherein A is a group of formula (11A), (11B)) (11C), (11D), (11E), and/or (11F) and Y1 is O or S. The compound M3 and the compound M2 may be different in structure.
    Type: Application
    Filed: March 17, 2022
    Publication date: June 6, 2024
    Applicants: IDEMITSU KOSAN CO.,LTD., TORAY INDUSTRIES, INC.
    Inventors: Takushi SHIOMI, Hisato MATSUMOTO, Yukitoshi JINDE, Yuta HIGASHINO, Toshinari OGIWARA, Hidetaka HOSHINO, Kazumasa NAGAO
  • Publication number: 20240182810
    Abstract: A lubricating oil composition, including a base oil (P) and a copolymer (X). The copolymer (X) contains the following structural units (a) to (c): structural unit (a): a structural unit derived from a monomer (A) having a (meth)acryloyl group and a linear or branched alkyl group having 6 to 24 carbon atoms, structural unit (b): a structural unit derived from a monomer (B) having a (meth)acryloyl group and a polar group, and structural unit (c): a structural unit derived from a monomer (C) having a polymerizable functional group and a cyclic structural group. The copolymer (X) has a mass-average molecular weight (Mw) of 5,000 to 50,000, a content of the copolymer (X) in terms of resin content is 0.10% by mass to 2.5% by mass based on the total amount of the lubricating oil composition, and the lubricating oil composition has a 100° C. kinematic viscosity of 8.2 mm2/s or less.
    Type: Application
    Filed: March 18, 2022
    Publication date: June 6, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Kenji SUNAHARA, Shoichiro FUJITA, Masaya KUBOTA, Shota KATO
  • Publication number: 20240182806
    Abstract: A lubricating oil composition, containing a base oil (A) that satisfies the following requirements (A-1) to (A-4), and a polymer (B) that satisfies the following requirements (B-1) and (B-2): (A-1): a 100° C. kinematic viscosity is 2.0 mm2/s or more and less than 7.0 mm2/s, (A-2): a viscosity index is 100 or more, (A-3): a content of cycloparaffin is 35.0% by volume or less based on a total volume of the base oil (A), (A-4): an aromatic content (% CA) is less than 1.0, (B-1): a ratio of a mass-average molecular weight (Mw) to a number-average molecular weight (Mn), [Mw/Mn] is 1.0 or more and less than 6.0, (B-2): a ratio of a peak integral value (I10) at a chemical shift 10.0 to 11.0 ppm to a peak integral value (I14) at a chemical shift 13.5 to 14.5 ppm, as determined in 13C-NMR analysis, [I10/I14] is 0.05 or more.
    Type: Application
    Filed: March 29, 2022
    Publication date: June 6, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventor: Ninako YUASA
  • Publication number: 20240188431
    Abstract: An organic electroluminescence device may have good organic electroluminescence device performance by including a light emitting layer, a first electron transporting layer, and a second electron transporting layer from an anode toward a cathode. The first electron transporting layer may include a first compound of formula (1): A-(L)n-Ar—CN??(1).
    Type: Application
    Filed: January 26, 2024
    Publication date: June 6, 2024
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Tetsuya MASUDA, Takushi SHIOMI, Masayuki MITSUYA
  • Publication number: 20240188425
    Abstract: A compound represented by the following general formula (1), where Ar1, A, and B are as defined in the description. An organic electroluminescent device containing a cathode, an anode, and organic layers intervening between the cathode and the anode, where the organic layers include a light emitting layer, and where at least one layer of the organic layers contains the compound.
    Type: Application
    Filed: January 27, 2022
    Publication date: June 6, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Sayaka MIZUTANI, Masatoshi SAITO, Kei YOSHIDA, Masato MITANI, Masato NAKAMURA, Yoshinori AOYAMA