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:
Feb. 04, 2014
Filed:
Mar. 27, 2009
Applicant:
Mikio Ikenishi, Tokyo, JP;
Inventor:
Mikio Ikenishi, Tokyo, JP;
Assignee:
Hoya Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C 3/247 (2006.01); C03C 3/16 (2006.01); C03C 3/17 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a fluorophosphate glass containing more than 3 cationic % and 30 cationic % or less of a phosphorus ingredient in terms of P, the glass having a ratio I/Iof equal to or less than 0.08 in which Iis a strength of a resonance peak generated near a reference frequency ofP in a nuclear magnetic resonance spectrum and Iis a strength of a first-order side band peak of the resonance peak. The glass of the invention is reduced in volatility and erosiveness.