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:
Jul. 02, 1991
Filed:
Jul. 26, 1989
Fusayoshi Kido, Yokohama, JP;
Naotoshi Matsuda, Kawasaki, JP;
Hideo Yoshikawa, Yamato, JP;
Masaaki Tamatani, Fujisawa, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A thin film electroluminescence device is disclosed which comprises are electrode formed on a transparatent substrate, one dielectric layer formed on the electrode, an emitting layer containing Group IIIb-Vb compound as a host material and positive trivalent element ions added as a luminescence center to the host material, the other dielectric layer formed on the emitting layer, the other electrode provided on the other dielectric layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile