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:
Aug. 15, 2000
Filed:
Mar. 05, 1998
Applicant:
Inventors:
Shigeo Itoh, Mobara, JP;
Hitoshi Toki, Mobara, JP;
Assignee:
Futaba Denshi Kogyo K.K., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ;
U.S. Cl.
CPC ...
25230136 ; 25230116 ; 313486 ; 313503 ; 313496 ; 428403 ;
Abstract
A phosphor capable of being reduced in activity of a surface thereof, to thereby minimize adsorption of gas thereon, release of gas therefrom and the like, to thereby ensure protection of the surface. The phosphor of the present invention is coated with a diamond-like carbon (DLC) film. Such coating reduces an activity of a surface of the phosphor. Also, the phosphor may be used for a display section of a display device. This permits durability of the phosphor to be increased and prevents a deterioration of a cathode, resulting in the display device being increased in durability.