Patents by Inventor Yu Kudo

Yu Kudo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240403575
    Abstract: An organic electroluminescence device includes an emitting region provided between an anode and a cathode, in which the emitting region includes a first emitting layer and a second emitting layer, a ratio DEM1/DEM2 of a film thickness DEM1 of the first emitting layer to a film thickness DEM2 of the second emitting layer is in a range from 2/3 to 3/2, the first emitting layer contains a first host material and a first luminescent compound, the second emitting layer contains a second host material and a second luminescent compound, and the first host material is a compound represented by a formula (1) below having a group represented by a formula (10).
    Type: Application
    Filed: July 13, 2022
    Publication date: December 5, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Hiroaki ITOI, Yu KUDO, Shintaro BAN, Taro YAMAKI, Takamoto MORITA
  • Publication number: 20240368103
    Abstract: A compound represented by a formula (1). In the formula (1), HAr1 is a group represented by one of formulae (A) to (F) below.
    Type: Application
    Filed: December 19, 2023
    Publication date: November 7, 2024
    Applicant: Idemitsu Kosan Co., LTD
    Inventors: Kei YOSHIDA, Masato Mitani, Hiroaki Itoi, Yu Kudo
  • Publication number: 20240373745
    Abstract: A compound is represented by a formula (1) below. In the formula (1): Ra and Rb not forming a ring are a substituent or the like; a combination of R5 and R6, combination of R6 and R7, or combination of R7 and R8 form a ring represented by a formula (10). In this case, positions a1 and b1, positions a2 and b1, or positions a3 and b1 are fused with each other. One or more of R1 to R4, R5 to R8 not forming a ring, and R9 to R12 are a substituent Rx. One or more of R4 to R6, R8, R9 and R12 not being Rx are a substituent Ry, and R1 to R12 other than Rx and Ry are a hydrogen atom or substituent. At least one hetero atom of when the substituent is a heterocyclic group only includes one or more of oxygen, sulfur and silicon.
    Type: Application
    Filed: April 26, 2024
    Publication date: November 7, 2024
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Kazuki TERADA, Yu KUDO, Kei YOSHIDA, Masato MITANI
  • Publication number: 20240292750
    Abstract: An organic electroluminescence device includes an emitting layer, in which the emitting layer includes at least one single layer containing a first host material, a second host material, and an emitting compound; the first host material and the second host material are mutually different; and a triplet energy of the first host material T1(H1), a triplet energy of the second host material T1(H2), and a triplet energy of the emitting compound T1(D) satisfy at least one of a relationship of a numerical formula (Numerical Formula 1) or a relationship of a numerical formula (Numerical Formula 2) below, T1(D)>T1(H1)??(Numerical Formula 1) T1(D2)>T1(H2)??(Numerical Formula 2).
    Type: Application
    Filed: May 11, 2022
    Publication date: August 29, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yu KUDO, Tetsuya MASUDA, Hiroaki ITOI, Shintaro BAN, Takayasu SADO, Satomi TASAKI, Taro YAMAKI, Ryota TAKAHASHI, Takamoto MORITA
  • Patent number: 12069943
    Abstract: The present invention relates to a compound represented by the formula (1): wherein R1 to R4 and L1 to L4 are those defined in the specification, and Ar is the following formula (A) or (B): wherein R11 to R18 and R20 to R29 are those defined in the specification, and Ar is one defined in the specification.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: August 20, 2024
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Tasuku Haketa, Hirokatsu Ito, Yu Kudo
  • Publication number: 20240276878
    Abstract: A compound represented by a formula (1). In the formula (1), Rio is a group represented by one of formulae (11) to (14), and when R10 is a group represented by the formula (14), at least one of R11 to R18 is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.
    Type: Application
    Filed: December 19, 2023
    Publication date: August 15, 2024
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Sigma HASHIMOTO, Kei YOSHIDA, Yu KUDO, Hiroaki ITOI
  • Publication number: 20240262539
    Abstract: An exploration method includes: a step of exploring a natural resource on a satellite, a minor planet, or a planet; a step of acquiring the natural resource detected by the exploration; and a step of storing the acquired natural resource.
    Type: Application
    Filed: May 18, 2023
    Publication date: August 8, 2024
    Inventors: Takeshi HAKAMADA, Takahiro NAKAMURA, John WALKER, Toshiro SHIMIZU, Toshiki TANAKA, Daisuke FURUTOMO, Yu KUDO, Kiyona MIYAMOTO, Daishi MATSUKURA, Mohamed RAGAB, Abdelkader HAOUCHINE, Damien HAIKAL, Chit Hong YAM, Julian Jakub GRAMATYKA
  • Patent number: 12048242
    Abstract: Provided are a compound capable of more improving the performance of organic EL devices, an organic electroluminescent device having a more improved device performance, and an electronic device including such an organic electroluminescent device; precisely, a compound represented by the following formula (1) wherein X1, X2, X3, L, R1 to R3, R5 to R8, R11 to R13, R15 to R18, R21 to R24, and R25 to R28 are as defined in the description, an organic electroluminescent device containing the compound, and an electronic device including such an organic electroluminescent device.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: July 23, 2024
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yusuke Takahashi, Tasuku Haketa, Hirokatsu Ito, Yu Kudo
  • Publication number: 20240224791
    Abstract: An organic electroluminescence device includes: an anode; a cathode; and an emitting layer provided between the anode and the cathode, in which the emitting layer includes a first emitting layer and a second emitting layer, and the first emitting layer contains, as a first host material, a first compound represented by a formula (1) below, in the formula (1): a cyclic structure A and a cyclic structure B are each independently, for instance, a cyclic structure selected from the group consisting of a substituted or unsubstituted aryl ring having 6 to 50 ring carbon atoms, and a substituted or unsubstituted heterocycle having 5 to 50 ring atoms; X1 is, for instance, an oxygen atom, a sulfur atom, NR71, and C(R72)(R73); and Y1 is, for instance, a sulfur atom, NR71A, or C(R72A)(R73A).
    Type: Application
    Filed: March 10, 2022
    Publication date: July 4, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Hiroaki ITOI, Satomi TASAKI, Kazuki NISHIMURA, Ryota TAKAHASHI, Taro YAMAKI, Yu KUDO
  • Publication number: 20240090329
    Abstract: A compound includes: at least one group represented by a formula (11) below; and a single benz[de]anthracene derivative skeleton represented by a formula (1000) below in a molecule, in which Ar1 is a substituted or unsubstituted aryl group including at least four rings, at least one of R10 to R19 is a group represented by the formula (11), L1 is a substituted or unsubstituted arylene group having 6 to 15 ring carbon atoms or a substituted or unsubstituted divalent heterocyclic group having 5 to 15 ring atoms, and mx is 1, 2, or 3.
    Type: Application
    Filed: October 1, 2021
    Publication date: March 14, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Hiroaki ITOI, Yuki NAKANO, Taro YAMAKI, Maiko IIDA, Takamoto MORITA, Shintaro BAN, Ryota TAKAHASHI, Yu KUDO, Yoshinao SHIRASAKI
  • Publication number: 20240074311
    Abstract: A compound is represented by a formula (1) below. In the formula (1): R1 to R9, R101 to R108, and R111 to R118 are each independently a hydrogen atom, a substituted or unsubstituted aryl group having 6 to 20 ring carbon atoms, or the like; Ar12 is a substituted or unsubstituted aryl group having 10 to 30 ring carbon atoms or the like; p is 0 or 1; q is 0 or 1; and p+q is 1 or 2.
    Type: Application
    Filed: June 13, 2023
    Publication date: February 29, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Shintaro BAN, Yu KUDO, Kei YOSHIDA, Sigma HASHIMOTO, Yoshinao SHIRASAKI
  • Publication number: 20240008363
    Abstract: A compound represented by the following formula (1).
    Type: Application
    Filed: November 17, 2021
    Publication date: January 4, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Hiroaki ITOI, Taro YAMAKI, Maiko IIDA, Shintaro BAN, Takamoto MORITA, Yu KUDO
  • Patent number: 11744149
    Abstract: Provided are a compound capable of more improving the performance of organic EL devices, an organic electroluminescent device having a more improved device performance, and an electronic device including such an organic electroluminescent device; precisely, a compound represented by the following formula (1) wherein X1, X2, X3, L, R1 to R3, R5 to R8, R11 to R13, R15 to R18, R21 to R24, and R25 to R28 are as defined in the description, an organic electroluminescent device containing the compound, and an electronic device including such an organic electroluminescent device.
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: August 29, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yusuke Takahashi, Tasuku Haketa, Hirokatsu Ito, Yu Kudo
  • Patent number: 11730054
    Abstract: A compound that is capable of achieving an organic EL device that has a high external quantum efficiency and a long lifetime is to be provided, and a compound represented by the following formula (1) is used (wherein in the formula, R11 to R17, R21 to R28, R31 to R38, R41 to R45, R51 to R55, R61 to R64, and L1 are defined in the description).
    Type: Grant
    Filed: September 6, 2022
    Date of Patent: August 15, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Hirokatsu Ito, Tasuku Haketa, Yu Kudo
  • Publication number: 20230227397
    Abstract: A compound may improve the capability of an organic EL device, and an organic electroluminescent device including such compound may have improved capability and may be included in electronic devices. Such compounds may be of formula (1A) or formula (1B) (wherein the symbols are as defined in the description) organic electroluminescent device(s) may contain such compound(s), and electronic device(s) may include such organic electroluminescent device(s).
    Type: Application
    Filed: October 9, 2020
    Publication date: July 20, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yusuke TAKAHASHI, Tasuku HAKETA, Shota TANAKA, Hirokatsu ITO, Yu KUDO
  • Patent number: 11661218
    Abstract: An exploration method includes: a step of exploring a natural resource on a satellite, a minor planet, or a planet; a step of acquiring the natural resource detected by the exploration; and a step of storing the acquired natural resource.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: May 30, 2023
    Assignee: ISPACE, INC.
    Inventors: Takeshi Hakamada, Takahiro Nakamura, John Walker, Toshiro Shimizu, Toshiki Tanaka, Daisuke Furutomo, Yu Kudo, Kiyona Miyamoto, Daishi Matsukura, Mohamed Ragab, Abdelkader Haouchine, Damien Haikal, Chit Hong Yam, Julian Jakub Gramatyka
  • Publication number: 20230159479
    Abstract: a compound represented by formula (A): wherein Ar, R1 to R7, R11 to R14, R21 to R24, R31 to R34, *1, and R41 to R48 are as defined in the description provides organic electroluminescence devices with improved device performance.
    Type: Application
    Filed: January 24, 2023
    Publication date: May 25, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yu KUDO, Tasuku HAKETA, Hirokatsu ITO
  • Publication number: 20230145611
    Abstract: A compound represented by the following formula (1), wherein at least one of Ra to Rd is a substituted or unsubstituted biphenyl-2-yl group; and at least one of Ra to Rd has a specific substituent.
    Type: Application
    Filed: February 19, 2021
    Publication date: May 11, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yuki NAKANO, Ryota TAKAHASHI, Yoshinao SHIRASAKI, Yu KUDO
  • Patent number: 11618740
    Abstract: A compound represented by formula (A): wherein Ar, R1 to R7, R11 to R14, R21 to R24, R31 to R34, *1, and R41 to R48 are as defined in the description provides organic electroluminescence devices with improved device performance.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: April 4, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yu Kudo, Tasuku Haketa, Hirokatsu Ito
  • Publication number: 20230047512
    Abstract: A compound that is capable of achieving an organic EL device that has a high external quantum efficiency and a long lifetime is to be provided, and a compound represented by the following formula (1) is used (wherein in the formula, R11 to R17, R21 to R28, R31 to R38, R41 to R45, R51 to R55, R61 to R64, and L1 are defined in the description).
    Type: Application
    Filed: September 6, 2022
    Publication date: February 16, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Hirokatsu ITO, Tasuku HAKETA, Yu KUDO