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:
Dec. 19, 2000
Filed:
Jul. 17, 1998
Applicant:
Inventors:
Hitoshi Toki, Mobara, JP;
Shigeo Itoh, Mobara, JP;
Assignee:
Futaba Denshi Kogyo K.K., Chiba-ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313496 ;
Abstract
A fluorescent luminous device capable of providing a fluorescent luminous device including a non-sulfide phosphor which is reduced in resistance and emits light of a reddish luminous color. The fluorescent luminous device is so constructed that the phosphor layer is made of a non-sulfide phosphor excited by luminescence of a ZnO:Zn phosphor to emit light of a yellowish red luminous color. The ZnO:Zn phosphor is deposited on the non-sulfide phosphor.