IDiyas

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12421450 B1

PDFFull Text
Date of Patent:
Sep. 23, 2025

Filed:

Jun. 21, 2021

Compounds, materials for organic electroluminescent devices, organic electroluminescent devices, and electronic devices

Applicant:

Idemitsu Kosan Co.,ltd., Tokyo, JP;

Inventors:

Keiichi Yasukawa, Chiyoda-ku, JP;

Hiromi Nakano, Chiyoda-ku, JP;

Hisato Matsumoto, Chiyoda-ku, JP;

Toshinari Ogiwara, Chiyoda-ku, JP;

Assignee:

IDEMITSU KOSAN CO., LTD., Tokyo, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Tae H Yoon

Int. Cl.
CPC ...
C09K 11/06 (2006.01); C07D 495/04 (2006.01); H01L 51/00 (2006.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 101/20 (2023.01);
U.S. Cl.
CPC ...
C09K 11/06 (2013.01); C07D 495/04 (2013.01); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 85/658 (2023.02); C09K 2211/1018 (2013.01); H10K 50/11 (2023.02); H10K 2101/20 (2023.02);
Abstract

A compound of formula (11) to (13) wherein Rto Rare each independently Dof a formula (1-1) etc. or Dof a formula (2-1) etc. at least one of Rto Rbeing D, and at least one of Rto Rbeing D. In (1-1) and (2-1), Xis O or S, Rto Rand Rto Rare each independently H, a substituent etc. In at least one D, at least one of Rto Ris a group of a formula (110) or (120): Zis a C etc., a ring (B) is an aromatic hydrocarbon ring etc., Yto Yare each independently CRetc., Yto Yare each independently CRetc., Zis an aryl group etc., and * is a bonding position.

Find Patent Forward Citations

Loading…