Patents Assigned to Idemitsu Kosan Co., Ltd.
  • Patent number: 11575087
    Abstract: An organic electroluminescence device includes: an emitting region provided between a cathode and an anode; and a hole transporting zone provided between the anode and the emitting region, in which the hole transporting zone includes at least a first anode side organic layer and a second anode side organic layer, the first anode side organic layer is in direct contact with the second anode side organic layer, a total film thickness of the hole transporting zone is in a range from 20 nm to 80 nm, the first anode side organic layer contains no compound contained in the second anode side organic layer, the first anode side organic layer contains a first organic material and a second organic material, the first organic material is different from the second organic material, and a content of the first organic material in the first anode side organic layer is less than 50 mass %.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: February 7, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Hiroaki Toyoshima, Kazuki Nishimura, Emiko Kambe, Masato Nakamura, Tetsuya Masuda, Yusuke Takahashi
  • Patent number: 11572527
    Abstract: Provided is a grease composition which contains (A) a mixed base oil containing (A1) a low-viscosity base oil having a kinematic viscosity at 40° C. of 10 to 50 mm2/s and (A2) a high-viscosity base oil having a kinematic viscosity at 40° C. of 200 to 700 mm2/s, (B) a lithium-based thickener and (C) a polymer having a kinematic viscosity at 100° C. of 1,000 to 100,000 mm2/s, and has an apparent viscosity at ?10° C., as measured according to JIS K2220:2013 and at a shear rate of 10 s?1, of 50 to 250 mPa·s. The grease composition is excellent in pumpability and is also excellent in wear resistance under poor lubrication conditions.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: February 7, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventor: Go Watanabe
  • Patent number: 11572525
    Abstract: A lubricating oil composition may include a base oil (A), an olefin copolymer (B), and a poly(alkyl(meth)acrylate) (C), in which a weight average molecular weight of the olefin copolymer (B) is 10,000 to 80,000, a content of the olefin copolymer (B) is 0.01% to 0.23% by mass based on the total amount of the lubricating oil composition, and a content of the poly(alkyl(meth)acrylate) (C) is 0.02% to 0.40% by mass based on the total amount of the lubricating oil composition.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: February 7, 2023
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventor: Kazushi Tamura
  • Publication number: 20230036664
    Abstract: An organic electroluminescence device includes: an emitting region provided between a cathode and an anode; and a hole transporting zone provided between the anode and the emitting region, in which the hole transporting zone includes at least a first anode side organic layer and a second anode side organic layer, the first anode side organic layer is in direct contact with the second anode side organic layer, a total film thickness of the hole transporting zone is in a range from 20 nm to 80 nm, the first anode side organic layer contains no compound contained in the second anode side organic layer, the first anode side organic layer contains a first organic material and a second organic material, the first organic material is different from the second organic material, and a content of the first organic material in the first anode side organic layer is less than 50 mass %.
    Type: Application
    Filed: August 25, 2022
    Publication date: February 2, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Hiroaki TOYOSHIMA, Kazuki NISHIMURA, Emiko KAMBE, Masato NAKAMURA, Tetsuya MASUDA, Yusuke TAKAHASHI
  • Publication number: 20230033529
    Abstract: An organic EL device includes: an anode, a cathode, and an emitting layer, in which the emitting layer contains a first compound of a formula (1), a second compound of a formula (2), and a third compound that exhibits delayed fluorescence, and singlet energies S1 of the first compound, the second compound, and the third compound satisfy Numerical Formula 1 and Numerical Formula 2. In the formula (1), A represents a group of a formula (a1) or the like, L represents a linking group or the like, and B represents an aryl group or the like. The first compound of the formula (1) has no carbonyl group. In the formula (2), Y21 to Y26 each independently represent an N atom, CRA, or the like. RA represents a substituent, a group of a formula (2A), or the like.
    Type: Application
    Filed: June 11, 2021
    Publication date: February 2, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Takushi SHIOMI, Hisato MATSUMOTO, Hiromi NAKANO, Toshinari OGIWARA
  • Publication number: 20230029776
    Abstract: An aromatic polyether including structural units represented by the following formulas (1A) to (4A):
    Type: Application
    Filed: December 10, 2020
    Publication date: February 2, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Minoru SENGA, Kouichi SUGA, Yuko MURAKAMI
  • Patent number: 11566195
    Abstract: Provided is a fuel oil composition that has a sulfur content of 0.50 mass % or less but yet has a storage stability, long-term storage stability, combustion performance, low-temperature fluidity and kinetic viscosity sufficient for use in ships. A fuel oil composition that has a sulfur content of 0.50 mass % or less, aromatic content of 50.0 to 75.0 mass %, a mass ratio of sum of paraffin and asphaltene to the sum of aromatic and resin is 0.20 to 0.80 wherein the paraffin, the asphaltene, the aromatic and the resin are measured using a TLC/FID method respectively, a CCAI is 860 or less, a kinematic viscosity (50° C.) is 10.00 to 180 0 mm2/s, and a pour point of 25.0° C. or less.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: January 31, 2023
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Shohei Harada, Yasuyuki Komatsu, Rei Yoshida
  • Patent number: 11569449
    Abstract: An organic electroluminescence device comprising: a cathode, an anode, and at least one organic layer disposed between the cathode and the anode, wherein at least one layer of the at least one organic layer comprises a compound represented by the following formulas (1-1) and (1-3) or a compound represented by the following formulas (1-2) and (1-3).
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: January 31, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Ryota Takahashi, Hidetsugu Ikeda, Keita Seda, Yuki Nakano
  • Patent number: 11569456
    Abstract: An organic electroluminescence device includes: an anode; an emitting layer; and a cathode, the emitting layer containing a first material, a second material and a third material, the first material being a fluorescent material, the second material being a delayed fluorescent material, the third material having a singlet energy larger than a singlet energy of the second material.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: January 31, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Toshinari Ogiwara, Kei Yoshida, Ryohei Hashimoto, Yumiko Mizuki
  • Publication number: 20230026162
    Abstract: Provided are a compound that further improves the capability of an organic EL device, an organic electroluminescent device having a further improved device capability, and an electronic device including the organic electroluminescent device. Precisely provided are: a compound represented by the following formula (1) (wherein N*, Ar, L, X, *a, *b1, *b2, *b3, m, n, R11 to R14, R15 to R22, R31 to R40, and R41 to R48 are as defined in the description), an organic electroluminescent device containing the compound, and an electronic device including the organic electroluminescent device.
    Type: Application
    Filed: October 9, 2020
    Publication date: January 26, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Tasuku HAKETA, Hirokatsu ITO, Yu KUDO, Yusuke TAKAHASHI, Shota TANAKA
  • Publication number: 20230023811
    Abstract: Compounds of formula (1): wherein each symbol is as defined in the description, may provide an organic electroluminescence device having a further improved performance.
    Type: Application
    Filed: September 18, 2020
    Publication date: January 26, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yusuke TAKAHASHI, Tasuku HAKETA, Hirokatsu ITO, Yu KUDO
  • Publication number: 20230027888
    Abstract: There is provided an organic EL device, including: an anode; a cathode; an emitting layer provided between the anode and the cathode; a first layer provided between the anode and the emitting layer; and a second layer provided between the anode and the first layer, in which the emitting layer contains a delayed fluorescent compound, the first layer contains a first compound, the second layer contains a second compound, an ionization potential Ip(HT1) of the first compound satisfies Numerical Formula 1, a hole mobility ?h(HT1) of the first compound satisfies Numerical Formula 2, an ionization potential Ip(HT2) of the second compound satisfies Numerical Formula 3, and the first layer has a film thickness of 15 nm or more, Ip(HT1)?5.69 eV??(Numerical Formula 1) ?h(HT1)?1.00×10?5 cm2/Vs??(Numerical Formula 2) Ip(HT2)?5.60 eV??(Numerical Formula 3).
    Type: Application
    Filed: June 21, 2022
    Publication date: January 26, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Hisato MATSUMOTO, Toshinari OGIWARA
  • Publication number: 20230021458
    Abstract: According to a method for producing a solid electrolyte that contains a lithium atom, a sulfur atom, a phosphorus atom and a halogen atom, including mixing a complexing agent and a solid electrolyte raw material, a solid electrolyte having a high ionic conductivity is provided using a liquid-phase method.
    Type: Application
    Filed: December 21, 2020
    Publication date: January 26, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Mitsuru SHIBATA, Takayoshi KAMBARA, Masayuki SHIBATA
  • Publication number: 20230024273
    Abstract: Provided are: a compound that further improves the capability of an organic EL device, an organic electroluminescent device having a further improved device capability, and an electronic device including the organic electroluminescent device. Precisely provided are: a compound represented by the following formula (1A) or formula (1B) (wherein the symbols are as defined in the description), an organic electroluminescent device containing the compound, and an electronic device including the organic electroluminescent device.
    Type: Application
    Filed: October 9, 2020
    Publication date: January 26, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yusuke TAKAHASHI, Tasuku HAKETA, Shota TANAKA, Hirokatsu ITO, Yu KUDO
  • Publication number: 20230025187
    Abstract: A modified lignin having a ratio ((2H+G)/S) of a total of twice of a relative existence ratio H (%) of an H-type skeleton and a relative existence ratio G (%) of a G-type skeleton with respect to a relative existence ratio S (%) of an S-type skeleton, obtained from integrated values measured by 31P-NMR, of 2.5 or more, and an existence ratio of an aliphatic hydroxy group obtained by the same method of less than 20%, a method for producing a modified polyphenol, and a modified lignin-containing resin composition material.
    Type: Application
    Filed: September 23, 2022
    Publication date: January 26, 2023
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Hironori TASHIRO, Yoshihito KOYAMA
  • Publication number: 20230026288
    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: Application
    Filed: July 1, 2022
    Publication date: January 26, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yusuke TAKAHASHI, Tasuku HAKETA, Shota TANAKA
  • Publication number: 20230019712
    Abstract: An organic electroluminescence device including a cathode, an anode, and an emitting layer disposed between the cathode and the anode, wherein the emitting layer includes a compound represented by the following formula (1) and one or more compounds selected from the group consisting of compounds represented by each of formulas (11), (21), (31), (41), (51), (61), (71) and (81). In the formula (1), at least one of R1 to R8 is a deuterium atom, and Ar2 is a monovalent group represented by following formula (2), (3) or (4).
    Type: Application
    Filed: October 9, 2019
    Publication date: January 19, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yuki NAKANO, Taro YAMAKI, Satomi TASAKI, Tomoki KATO
  • Publication number: 20230014964
    Abstract: An organic electroluminescence device includes an anode, an emitting layer, and a cathode. The emitting layer contains a delayed fluorescent first compound, a fluorescent second compound, and a third compound represented by Cz-Az. The second compound emits light with a main peak wavelength ranging from 430 nm to 540 nm. Az is a cyclic structure selected from the group consisting of a substituted or unsubstituted pyridine ring, a substituted or unsubstituted pyrimidine ring, a substituted or unsubstituted triazine ring, and a substituted or unsubstituted pyrazine ring. Cz is represented by a formula (3B) below.
    Type: Application
    Filed: August 18, 2022
    Publication date: January 19, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Toshinari OGIWARA, Kei YOSHIDA, Masatoshi SAITO, Yuichiro KAWAMURA
  • Publication number: 20230020587
    Abstract: An agent for suppressing inflammation in the intestinal cell of a non-human animal comprises cashew nut shell liquid, heated cashew nut shell liquid, anacardic acid, cardanol, and/or cardol.
    Type: Application
    Filed: December 3, 2020
    Publication date: January 19, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Shuichi HIYAMUTA, Chie HIKITA, Haruki KITAZAWA
  • Publication number: 20230020436
    Abstract: A compound represented by the following formula (1) (In the formula (1), at least one of R1 to R8 is a deuterium atom; Ar2 is a monovalent group represented by the following formula (2), (3) or (4)).
    Type: Application
    Filed: October 9, 2019
    Publication date: January 19, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yuki NAKANO, Taro YAMAKI, Satomi TASAKI, Tomoki KATO