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.:
Date of Patent:
Apr. 10, 2007
Filed:
May. 30, 2003
Hiroshi Tada, Tokyo, JP;
Atsushi Oda, Tokyo, JP;
Hitoshi Ishikawa, Tokyo, JP;
Satoru Toguchi, Tokyo, JP;
Yukiko Morioka, Tokyo, JP;
Hiroshi Tada, Tokyo, JP;
Atsushi Oda, Tokyo, JP;
Hitoshi Ishikawa, Tokyo, JP;
Satoru Toguchi, Tokyo, JP;
Yukiko Morioka, Tokyo, JP;
Samsung SDI Co., Ltd., Suwon-si, KR;
Abstract
An organic electroluminescence material of the present invention includes, in order to provide an durable organic EL device emitting light of high brightness, a compound shown by the general formula (A-I) or (B-I) (as explained in the specification) wherein, Ato Awhich may be the same or different, are independently each a substituent shown by the general formula (A-II) (as explained in the specification): and a, b, and bare independently each an aryl group which may be substituted, ahaving at least one substituent shown by the general formula (B-II) (as explained in the specification), and band beach having at least one substituent shown by the general formula (B-III) (as explained in the specification), and band bmay be the same of different.