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. 16, 1991
Filed:
Oct. 18, 1988
Applicant:
Inventors:
Assignee:
Kasei Optonix, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; F21V / ;
U.S. Cl.
CPC ...
2523 / ; 2523 / ; 2523 / ; 252582 ;
Abstract
A fluorescent composition composed of a mixture of a sulfide phosphor and a conductive material, the sulfide phosphor consisting essentially of a sulfide of the formula (Zn.sub.1-x, Cd.sub.x)S wherein x is a number satisfying a condition of 0.ltoreq.x.ltoreq.1, as host material, and zinc oxide (ZnO) or a compound capable of being converted to zinc oxide (ZnO) by heat treatment and alumina, adhered to the surface of the host material.