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:
Feb. 21, 1989
Filed:
Oct. 02, 1986
Seii Sato, Atsugi, JP;
Masayuki Wakitani, Kawasaki, JP;
Tadashi Hasegawa, Atsugi, JP;
Shoshin Miura, Kawasaki, JP;
Shizuo Andoh, Kawasaki, JP;
Hideaki Takizawa, Kawasaki, JP;
Tetsuya Kobayashi, Hadano, JP;
Kazuhiro Takahara, Kawasaki, JP;
Toyoshi Kawada, Atsugi, JP;
Takayuki Hoshiya, Atsugi, JP;
Shintaro Kisumi, Zama, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An EL device having an electrode arrangement including first electrodes and at least one row of second electrodes intersecting the first electrodes and energized by a combination of the first and second electrodes. The second electrodes are divided into a plurality of sub-electrode portions. The electrode arrangement is such that the first electrodes each comprise a plurality of segments that are commonly-connected and intersect different sub-electrode portions. Another electrode arrangement is such that the first electrodes are arranged in a belt form and intersect different sub-electrodes portions in a meander manner. The EL device can be applied to an electrophotographic printing system as an optical system for forming a latent image. EL elements are repeatedly energized with the same data to give a sufficient intensity of light on a light sensitive medium, and deenergized for a time in which the intensity is decreased to a low level.