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:
Oct. 02, 2001
Filed:
Sep. 21, 1995
Applicant:
Inventors:
Masumi Koizumi, Tokyo, JP;
Yichao Jiang, Tokyo, JP;
Tsutomu Nomoto, Tokyo, JP;
Ichimatsu Abiko, Tokyo, JP;
Assignee:
Oki Data Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/447 ; H01L 3/300 ;
U.S. Cl.
CPC ...
B41J 2/447 ; H01L 3/300 ;
Abstract
A light-emitting array and its driving circuitry are integrated into a single device. The driving circuitry is formed in a semiconductor substrate and has an array of output terminals on a surface of the substrate. Organic electroluminescent elements are formed directly over the output terminals, in electrical contact with the output terminals. The electroluminescent elements are driven by direct current. An optical head assembly has one or more of these light-emitting arrays mounted on a printed circuit board.