Invention Grant
- Patent Title: Aromatic amine derivative, and organic electroluminescent element using same
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Application No.: US16903952Application Date: 2020-06-17
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Publication No.: US11444246B2Publication Date: 2022-09-13
- Inventor: Tomoki Kato , Takayasu Sado , Takahiro Fujiyama
- Applicant: IDEMITSU KOSAN CO., LTD.
- Applicant Address: JP Chiyoda-ku
- Assignee: IDEMITSU KOSAN CO., LTD.
- Current Assignee: IDEMITSU KOSAN CO., LTD.
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2012-191939 20120831
- Main IPC: H01L51/00
- IPC: H01L51/00 ; C07C211/61 ; H01L51/50 ; C07C217/80 ; C07C217/92 ; C07C255/58 ; C07D209/86 ; C07D307/91 ; C07D333/76 ; C07D405/12 ; C07D409/12 ; C09B11/04 ; C09B57/00 ; C09K11/06 ; H01L51/52
Abstract:
An aromatic amine derivative represented by formula (1): wherein R1, R2, R3, L, Ar1, Ar2, k, m, and n are the same as defined in the specification, is useful as a material for an organic EL device and realizes an organic EL device with a high efficiency and a long lifetime even when driving it at a low voltage.
Public/Granted literature
- US20200321526A1 AROMATIC AMINE DERIVATIVE, AND ORGANIC ELECTROLUMINESCENT ELEMENT USING SAME Public/Granted day:2020-10-08
Information query
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