Patents by Inventor Tomokatsu KUSHIDA

Tomokatsu KUSHIDA 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: 20240334813
    Abstract: A compound represented by the following formula (1).
    Type: Application
    Filed: June 2, 2022
    Publication date: October 3, 2024
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Masato MITANI, Tomokatsu KUSHIDA, Sayaka MIZUTANI, Masatoshi SAITO, Kei YOSHIDA, Yoshinori AOYAMA, Ryota TAKAHASHI
  • Publication number: 20240300978
    Abstract: A compound represented by the following formula (A1) (X1 is O or S; two or more of Y1, Y2, and Y3 are N; and Ar1 is an aryl group including 6 to 50 ring carbon atoms, comprising a benzene ring having at least substituent Ar2 at the ortho-position; Ar2 is an aryl group; and Ar3 is a predetermined group).
    Type: Application
    Filed: July 28, 2023
    Publication date: September 12, 2024
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Yoshinao SHIRASAKI, Masatoshi SAITO, Kei YOSHIDA, Tetsuya MASUDA, Masato NAKAMURA, Tomokatsu KUSHIDA
  • Publication number: 20230108999
    Abstract: A compound represented by formula (1): wherein R1 to R10, R11 to R14, L, and Ar are as defined in the description, a material for organic electroluminescence device containing the compound, an organic electroluminescence device containing the compound, and an electronic device containing the organic electroluminescence device are provided.
    Type: Application
    Filed: December 8, 2020
    Publication date: April 6, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Kei YOSHIDA, Masatoshi SAITO, Tomokatsu KUSHIDA
  • Publication number: 20230047894
    Abstract: A compound represented by the following formula (A1) (X1 is O or S; two or more of Y1, Y2, and Y3 are N; and Ar1 is an aryl group including 6 to 50 ring carbon atoms, comprising a benzene ring having at least substituent Ar2 at the ortho-position; Ar2 is an aryl group; and Ar3 is a predetermined group).
    Type: Application
    Filed: December 6, 2019
    Publication date: February 16, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yoshinao SHIRASAKI, Masatoshi SAITO, Kei YOSHIDA, Tetsuya MASUDA, Masato NAKAMURA, Tomokatsu KUSHIDA
  • Publication number: 20230039299
    Abstract: 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). At least one of R1 to R16 is a substituted or unsubstituted alkyl group including 1 to 50 carbon atoms or the like. In the compound represented by the formulas (1-1) and (1-3), at least one of R5 to R7 and R14 to R16 is —N(R36)(R37), and in the compound represented by the formulas (1-2) and (1-3), at least one of R2 to R16 is —N(R36)(R37).
    Type: Application
    Filed: February 19, 2021
    Publication date: February 9, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Ryota TAKAHASHI, Tomokatsu KUSHIDA, Yu KUDO, Yuki NAKANO
  • Publication number: 20220384734
    Abstract: The compounds represented by formula (1): wherein Ar1, Ar2, m, n, L, R, are R1 to R4 are as defined in the description, provides organic electroluminescence devices having device performance further improved.
    Type: Application
    Filed: August 19, 2020
    Publication date: December 1, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Tomokatsu KUSHIDA, Ryoji MAEDA, Masatoshi SAITO, Kei YOSHIDA
  • Publication number: 20220359831
    Abstract: To provide a compound that further improves the capability of an organic EL device, an organic EL device having a further improved device capability, and an electronic device including the organic EL device. A compound represented by the following formula (1) (wherein *p, *q, *r, *s, *b, *a, R1, R2, R11 to R18, L, and R31 to R35 are defined in the description), an organic electroluminescent device containing the compound, and an electronic device including the organic electroluminescent device.
    Type: Application
    Filed: August 19, 2020
    Publication date: November 10, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Tomokatsu KUSHIDA, Kei YOSHIDA, Masatoshi SAITO, Yoshinao SHIRASAKI, Masato NAKAMURA, Michelle GROARKE, Heinz WOLLEB, Natalia CHEBOTAREVA
  • Publication number: 20220298147
    Abstract: The compounds represented by formula (1): wherein X1, X2, Y1 to Y3, L, *a, R1 to R9, R11 to R18, and R21 to R27 are as defined in the description, provides organic electroluminescence devices having device performance further improved.
    Type: Application
    Filed: August 19, 2020
    Publication date: September 22, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Kei YOSHIDA, Masatoshi SAITO, Tomokatsu KUSHIDA, Tetsuya MASUDA
  • Publication number: 20220289717
    Abstract: Provided is a compound represented by a formula (1). In the formula (1): X1 to X5 each independently represent a nitrogen atom or CR10; two or more of X1 to X5 are nitrogen atoms; Y1 to Y5 each independently represent a nitrogen atom or CR20; one or more of Y1 to Y5 are nitrogen atoms; R10, R20, and R5 to R7 forming neither a monocyclic ring nor a fused ring, and R8 and R9 each independently represent a hydrogen atom, an aryl group, a heterocyclic group, or the like; a represents 0, 1, 2, or 3; b represents 0, 1, 2, or 3; and L1 and L2 each independently represent a single bond, an arylene group, a divalent heterocyclic group, or the like.
    Type: Application
    Filed: January 11, 2022
    Publication date: September 15, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Masato MITANI, Masatoshi SAITO, Kei YOSHIDA, Tomokatsu KUSHIDA, Sayaka MIZUTANI
  • Publication number: 20220281856
    Abstract: A compound represented by the following formula (1): wherein R1 to R14, L1 to L3, p, q, r, n, and X1 are defined in the description.
    Type: Application
    Filed: August 19, 2020
    Publication date: September 8, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Masatoshi SAITO, Kei YOSHIDA, Tomokatsu KUSHIDA, Tetsuya MASUDA