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. 21, 1992
Filed:
Jul. 09, 1991
Applicant:
Inventors:
Fumio Takahashi, Odawara, JP;
Kunihiko Yoneshima, Hiratsuka, JP;
Assignee:
Kasei Optonix, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
2523 / ; 2523015 ; 2523 / ; 313495 ;
Abstract
A fluorescent composition for low velocity electron beam excitation, comprising a phosphor containing 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 the host material, and an electrically conductive material mixed or mutually adhered to each other, wherein the half value width (2.theta.) of the strongest diffraction line in the diffraction X-ray spectrum of said sulfide is within a range of from 0.05.degree. to 0.16.degree..