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:
Oct. 30, 2001
Applicant:
Yuji Hamada, Nara, JP;
Inventor:
Yuji Hamada, Nara, JP;
Assignee:
Sanyo Electric Co., Ltd., Moriguchi-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
H05B 33/12 (2006.01); H01L 27/32 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electron transport layer includes an electron transport material (host material) and a carrier transportable dopant. The carrier transportable dopant is contained 1% by weight to 50% by weight, preferably 1% by weight to 10% by weight for the electron transport material. A compound having a carbazole group or a derivative of the compound is employed as the carrier transportable dopant. A complex of an 8-hydroxyquinoline derivative and metal is employed as the electron transport material.