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. 04, 1978
Filed:
Jun. 10, 1975
Applicant:
Inventors:
Assignee:
Futaba Denshi Kogyo K.K., , JP;
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ;
U.S. Cl.
CPC ...
427 42 ; 427 69 ; 427250 ; 427294 ;
Abstract
A process for producing a thin fluorescent film for electroluminescence includes the steps of heating a raw material, composed of a base material and an activator, within an enclosed type crucible so as to generate a mixed vapor, injecting the mixed vapor into a vacuum zone through means of an injection nozzle, projecting an electron beam into the injected mixed vapor so as to ionize the mixed vapor, accelerating the ionized mixed vapor by means of an electric field, and permitting the accelerated ionized mixed vapor to collide with a base plate so as to form a vapor-deposited film upon the base plate.