Patents by Inventor Tasuku Haketa

Tasuku Haketa 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: 20240032416
    Abstract: Provided are a compound that further improves the performance of an organic EL device, an organic electroluminescent device having further improved device performance, and an electronic device including the organic electroluminescent device. A compound represented by the following formula (1): wherein in the formula (1) and formulas (1-a) to (1-d), N*, *p, *q, *r, *s, Ar, **, and X are as defined in the description; an organic electroluminescent device including the compound; and an electronic device including the organic electroluminescent device.
    Type: Application
    Filed: November 26, 2021
    Publication date: January 25, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Tasuku HAKETA, Kengo KISHINO, Shota TANAKA, Yusuke TAKAHASHI, Takuto FUKAMI, Tsukasa SAWATO
  • Publication number: 20230422606
    Abstract: Provided are a compound that further improves the performance of an organic EL device, an organic electroluminescent device having further improved device performance, and an electronic device including the organic electroluminescent device. The compound is represented by the following formula (1): wherein each of the symbols in the formula (1) is defined in the description. The organic electroluminescent device includes the compound; and the electronic device includes the organic electroluminescent device.
    Type: Application
    Filed: November 26, 2021
    Publication date: December 28, 2023
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Tasuku HAKETA, Takuto FUKAMI, Shota TANAKA, Yusuke TAKAHASHI, Tsukasa SAWATO
  • Publication number: 20230413664
    Abstract: Provided are a compound that further improves the performance of an organic EL element, an organic electroluminescent element having further improved element performance, and an electronic device including the organic electroluminescent element. A compound represented by the following formula (1): wherein each of the symbols in the formula (1) is defined in the description; an organic electroluminescent element including the compound; and an electronic device including the organic electroluminescent element.
    Type: Application
    Filed: November 26, 2021
    Publication date: December 21, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Tasuku HAKETA, Takuto FUKAMI, Shota TANAKA, Yusuke TAKAHASHI, Tsukasa SAWATO
  • Publication number: 20230389347
    Abstract: 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 are provided. A compound represented by the following formula (1): wherein in the formulae (1) and (1-a) or (1-b), N*, Ar1, Ar2, L1, L2, L3, and R1 to R5 are defined in the description, and Ara represents the formula (1-a) or (1-b), an organic electroluminescent device including the compound, and an electronic device including the organic electroluminescent device.
    Type: Application
    Filed: October 15, 2021
    Publication date: November 30, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Shota TANAKA, Tasuku HAKETA, Yusuke TAKAHASHI
  • Patent number: 11795155
    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: July 1, 2022
    Date of Patent: October 24, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yusuke Takahashi, Tasuku Haketa, Shota Tanaka
  • Publication number: 20230312501
    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: June 6, 2023
    Publication date: October 5, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yusuke TAKAHASHI, Tasuku HAKETA, Shota TANAKA
  • Publication number: 20230301176
    Abstract: Provided are a compound that further improves the performance of an organic EL device, the organic electroluminescence device with more improved device performance, and electronic device including such an organic electroluminescence device, in which the compound is represented by the following formula (1): (each symbol in the formula (1) is as defined in the specification), the organic electroluminescence device contains the compound, and the electronic device includes the organic electroluminescence device.
    Type: Application
    Filed: October 28, 2022
    Publication date: September 21, 2023
    Applicants: IDEMITSU KOSAN CO.,LTD., National University Corporation Tokai National Higher Education and Research System
    Inventors: Tsukasa SAWATO, Keita SEDA, Tasuku HAKETA, Yusuke TAKAHASHI, Shota TANAKA, Takuto FUKAMI, Hideto ITO, Kenichiro ITAMI
  • 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
  • Publication number: 20230262999
    Abstract: The compounds represented by formula (1): wherein each symbol is as defined in the description, provide organic electroluminescence devices having device performance further improved.
    Type: Application
    Filed: September 29, 2021
    Publication date: August 17, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yusuke TAKAHASHI, Tasuku HAKETA, Shota TANAKA
  • 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: 11691983
    Abstract: Specifically substituted benzofuro- and benzothienoquinolines and their use in electronic devices, especially electroluminescent devices. When used as charge transport material, charge blocker material and/or host material in electroluminescent devices, the specifically substituted benzofuro- and benzothienoquinolines may provide improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices and reduced driving voltage of electroluminescent devices.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: July 4, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yuichi Nishimae, Michelle Groarke, Heinz Wolleb, Annemarie Wolleb, Yuki Nakano, Hideaki Nagashima, Tasuku Haketa, Masahiro Kawamura, Takushi Shiomi
  • Publication number: 20230200222
    Abstract: A compound represented by the following formula (1) wherein the symbols are as defined in the description, and an organic electroluminescent device containing the compound.
    Type: Application
    Filed: February 22, 2023
    Publication date: June 22, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Hiroaki ITOI, Tasuku HAKETA, Yusuke TAKAHASHI, Shota TANAKA, Hirokatsu ITO
  • Patent number: 11678569
    Abstract: A compound represented by the following formula (1) wherein the symbols are as defined in the description, and an organic electroluminescent device containing the compound.
    Type: Grant
    Filed: March 25, 2022
    Date of Patent: June 13, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Hiroaki Itoi, Tasuku Haketa, Yusuke Takahashi, Shota Tanaka, Hirokatsu Ito
  • Publication number: 20230180597
    Abstract: The invention provides a compound capable of improving more the capabilities of organic EL devices, an organic electroluminescent device having more improved device capabilities, and an electronic device including such an organic electroluminescent device. The compound is represented by the following formula (1): wherein N*, *a1 to *a3, *b1 to *b3, m1 to m3, n1 to n3, R1A to R5A, R1B to R5B, R11A to R15A, R11B to R15B, R21A to R25A, R21B to R25B, R31 to R35, R36 to R38, R39 to R42, R43 to R47, Ar1 and Ar2 are as defined in the specification; the organic electroluminescent device includes the compound; and the electronic device includes such an organic electroluminescent device.
    Type: Application
    Filed: October 26, 2022
    Publication date: June 8, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Shota TANAKA, Yusuke TAKAHASHI, Tasuku HAKETA, Hiroaki ITOI, Takuto FUKAMI, Tsukasa SAWATO
  • Publication number: 20230172058
    Abstract: A compound may be capable of further improving the capability of an organic EL device. An organic electroluminescent device may have a further improved device capability using such compound(s). An electronic device may include such an organic electroluminescent device. Such compounds may have formula (1) wherein the symbols are as defined in the description.
    Type: Application
    Filed: March 23, 2021
    Publication date: June 1, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Tasuku HAKETA, Yusuke TAKAHASHI, Shota TANAKA, Hirokatsu ITO
  • 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: 20230118654
    Abstract: A compound that further improves the performance of an organic EL device, an organic electroluminescent device having a further improved device performance, and an electronic device including the organic EL device are provided, and a compound represented by the following formula (1) (the symbols in the formula are defined in the description), an organic electroluminescent device including the compound, and an electronic device including the organic electroluminescent device are provided.
    Type: Application
    Filed: February 3, 2021
    Publication date: April 20, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Tasuku HAKETA, Yusuke TAKAHASHI, Shota TANAKA, Hirokatsu ITO
  • Publication number: 20230120404
    Abstract: A compound represented by the following formula (1) (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: January 15, 2021
    Publication date: April 20, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Shota TANAKA, Tasuku HAKETA, Yusuke TAKAHASHI
  • 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