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:
Oct. 05, 1999
Filed:
Dec. 11, 1997
Applicant:
Inventors:
Masaaki Yamazaki, Urawa, JP;
Masaaki Otsuka, Urawa, JP;
Hideaki Takaku, Urawa, JP;
Naruhito Sawanobori, Urawa, JP;
Assignee:
Sumita Optical Glass, Inc., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C / ; C09K / ;
U.S. Cl.
CPC ...
2523 / ; 2523 / ; 501 64 ; 501 73 ; 501 65 ; 501 72 ; 501152 ;
Abstract
A glass material is provided which is capable of exhibiting fluorescence in the visible region by ultraviolet ray excitation. This glass material is represented, in term of atoms for making up the glass, by the following chemical composition (mol %):