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:
Jul. 29, 2003
Filed:
Aug. 08, 2001
Applicant:
Inventors:
Yuki Kondo, Yokohama, JP;
Setsuro Ito, Yokohama, JP;
Naoki Sugimoto, Yokohama, JP;
Tatsuo Nagashima, Yokohama, JP;
Setsuhisa Tanabe, Kyoto, JP;
Assignee:
Asahi Glass Company, Limited, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C 3/253 ; C03C 3/076 ; C03C 1/304 ; C03C 3/062 ;
U.S. Cl.
CPC ...
C03C 3/253 ; C03C 3/076 ; C03C 1/304 ; C03C 3/062 ;
Abstract
An optical amplifying glass comprising a matrix glass and from 0.001 to 10% by mass percentage of Tm doped to the matrix glass, wherein the matrix glass contains from 15 to 80 mol % of Bi O and further contains at least one component selected from the group consisting of SiO , B O and GeO .