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. 01, 1995
Filed:
Aug. 07, 1992
Applicant:
Inventor:
Shigeo Fujino, Odawara, JP;
Assignee:
Kasei Optonix, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; H01J / ;
U.S. Cl.
CPC ...
313489 ; 427 67 ;
Abstract
A fluorescent lamp having a non-fluorescent substance layer and a phosphor layer laminated and coated on, or having a fluorescent composition composed of a mixture of a non-fluorescent substance and a phosphor, coated on the inner wall of a glass bulb, wherein the non-fluorescent substance is an oxide containing at least one rare earth element selected from the group consisting of yttrium, gadolinium and lanthanum.