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. 07, 2001
Filed:
May. 12, 1999
Applicant:
Inventors:
Yoshinori Yamamoto, Saitama-ken, JP;
Masaaki Yamazaki, Saitama-ken, JP;
Naruhito Sawanobori, Saitama-ken, JP;
Shinobu Nagahama, Saitama-ken, JP;
Assignee:
Sumita Optical Glass, Inc., Urawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/253 ; C03C 4/12 ; C03C 3/145 ; C03C 3/15 ; C03C 3/062 ;
U.S. Cl.
CPC ...
C03C 3/253 ; C03C 4/12 ; C03C 3/145 ; C03C 3/15 ; C03C 3/062 ;
Abstract
The present invention provides an oxide glass capable of exhibiting a long lasting afterglow and photostimulated phosphorescence, can be used not only as a material for confirming an infrared laser or controlling an optical axis, but also as a material for recording or reproducing of &ggr;-rays, X-rays or UV-rays images and further can be used as an optical recording material of such a type that can be read. This glass material is represented, in term of atoms for making up the glass, by the following chemical composition (mol %):