Patents by Inventor Bungo KAWAKAMI

Bungo KAWAKAMI 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).

  • Polycyclic aromatic compound
    Patent number: 11877506
    Abstract: A polycyclic aromatic compound represented by Formula (1) is provided by the invention: wherein A11 ring, A21 ring, A31 ring, B11 ring, B21 ring, C11 ring, and C31 ring are an aryl or heteroaryl ring which may be substituted, Y11, Y21, Y31 are B or the like, X11, X12, X21, X22, X31, X32 are >O or >N—R, R in the above >N—R is an and which may be substituted or the like, R in the above >N—R or the like may be bonded to A11 ring, A21 ring, A31 ring, B11 ring, B21 ring, C11 ring, and/or C31 ring by a linking group or a single bond; and at least one hydrogen in the compound represented by Formula (1) may be replaced with deuterium, cyano, or a halogen.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: January 16, 2024
    Assignees: KWANSEI GAKUIN EDUCATIONAL FOUNDATION, SK MATERIALS JNC CO., LTD.
    Inventors: Takuji Hatakeyama, Bungo Kawakami, Susumu Oda, Yasuyuki Sasada, Yasuhiro Kondo
  • Polycyclic aromatic compound
    Publication number: 20220037591
    Abstract: A polycyclic aromatic compound represented by Formula (1) is provided by the invention: wherein A11 ring, A21 ring, A31 ring, B11 ring, B21 ring, C11 ring, and C31 ring are an aryl or heteroaryl ring which may be substituted, Y11, Y21, Y31 are B or the like, X11, X12, X21, X22, X31, X32 are >O or >N—R, R in the above >N—R is an and which may be substituted or the like, R in the above >N—R or the like may be bonded to A11 ring, A21 ring, A31 ring, B11 ring, B21 ring, C11 ring, and/or C31 ring by a linking group or a single bond; and at least one hydrogen in the compound represented by Formula (1) may be replaced with deuterium, cyano, or a halogen.
    Type: Application
    Filed: February 7, 2020
    Publication date: February 3, 2022
    Inventors: Takuji HATAKEYAMA, Bungo KAWAKAMI, Susumu ODA, Yasuyuki SASADA, Yasuhiro KONDO