公开(公告)号：US20200185620A1

公开(公告)日：2020-06-11

申请号：US16699442

申请日：2019-11-29

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Yuki NAKANO ,  Ryota TAKAHASHI ,  Kazuma MASE ,  Tomoki KATO

IPC: H01L51/00 ,  C07D487/22 ,  C09K11/06

Abstract: A compound is represented by a formula (2) below, where rings A and C each independently represent a substituted or unsubstituted aromatic heterocycle having 5 to 50 ring atoms, a ring B represents a substituted or unsubstituted aromatic heterocycle having 5 to 50 ring atoms or a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms.

公开(公告)号：US20230240133A1

公开(公告)日：2023-07-27

申请号：US18009315

申请日：2021-06-18

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Masato NAKAMURA ,  Tetsuya MASUDA ,  Satomi TASAKI ,  Hiroaki TOYOSHIMA ,  Takeshi IKEDA ,  Kazuma MASE

IPC: H10K85/60 ,  H10K85/40

CPC classification number: H10K85/636 ,  H10K85/626 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/633 ,  H10K85/40 ,  H10K85/623 ,  H10K85/658 ,  H10K85/654 ,  H10K50/13

Abstract: An organic electroluminescence device includes: a first emitting layer including a first host material, a first organic material, and a first dopant material; and a second emitting layer including a second host material and a second dopant material, in which the first host material, the first organic material, and the second host material are different compounds in structure and satisfy Numerical Formula 1 and Numerical Formula 2. Numerical Formula 1: T1(H1)>T1(H3), Numerical Formula 2: T1(H2)>T1(H3) (In Numerical Formula 1 and Numerical Formula 2, T1(H1), T1(H2), T1(H3) are triplet energies of the first host material, the first organic material, and the second host material, respectively.)

公开(公告)号：US20240206325A1

公开(公告)日：2024-06-20

申请号：US18281297

申请日：2022-03-10

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Yoshinao SHIRASAKI ,  Kazuma MASE ,  Hiroaki ITOI

IPC: H10K85/60 ,  C07D307/77 ,  C07D487/22 ,  C09K11/06

CPC classification number: H10K85/633 ,  C07D307/77 ,  C07D487/22 ,  C09K11/06 ,  H10K85/636 ,  H10K50/12

Abstract: A compound represented by the following formula (1), wherein in the formula (1), A is a substituted or unsubstituted aromatic hydrocarbon ring group containing a nitrogen atom as a part of a substituent and having a fused ring composed of 5 or more rings, or a substituted or unsubstituted heterocyclic group containing a nitrogen atom as a part of the skeleton or a substituent and having a fused ring composed of 5 or more rings; B is a monovalent group represented by the following formula (b1); wherein in the formula (b1), *B is bonded with the nitrogen atom contained as a part of the skeleton of A or a substituent via a single bond.

公开(公告)号：US20200181160A1

公开(公告)日：2020-06-11

申请号：US16699464

申请日：2019-11-29

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Yuki NAKANO ,  Ryota TAKAHASHI ,  Kazuma MASE ,  Tomoki KATO

IPC: C07D491/22 ,  C07D487/04 ,  H01L51/00

Abstract: A compound is represented by a formula (2) below, where a ring A represents a substituted or unsubstituted aromatic heterocycle, a ring B represents a substituted or unsubstituted aromatic heterocycle or a substituted or unsubstituted aromatic hydrocarbon ring, and a ring C represents a substituted or unsubstituted aromatic heterocycle having 7 to 50 ring atoms or a substituted or unsubstituted aromatic hydrocarbon ring having 7 to 50 ring carbon atoms.

公开(公告)号：US20230165138A1

公开(公告)日：2023-05-25

申请号：US17909701

申请日：2021-02-24

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Yoshinao SHIRASAKI ,  Ryota TAKAHASHI ,  Yuki NAKANO ,  Kazuma MASE ,  Tetsuya MASUDA

IPC: H10K85/60 ,  C07D307/77 ,  C09K11/06

CPC classification number: H10K85/636 ,  C07D307/77 ,  C09K11/06 ,  C09K2211/1018 ,  H10K85/6574 ,  H10K50/11

Abstract: A compound represented by the following formula (1), wherein at least one of R11 to R28 and R31 to R40 is not a hydrogen atom.

公开(公告)号：US20220255018A1

公开(公告)日：2022-08-11

申请号：US17615683

申请日：2020-06-11

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Ryota TAKAHASHI ,  Yuki NAKANO ,  Kazuma MASE

IPC: H01L51/00 ,  C07D487/22 ,  C09K11/06 ,  C07C15/28 ,  C07D307/91

Abstract: A compound represented by the following formula (A1) (wherein one or more among R1 to R7, R10 to R16, R21, and R22 are deuterium atoms or groups which possess deuterium atoms):