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:
Mar. 01, 2011
Filed:
Jan. 12, 2006
Applicant:
Junko Ishioka, Sagamihara, JP;
Inventor:
Junko Ishioka, Sagamihara, JP;
Assignee:
Kabushiki Kaisha Ohara, Sagamihara-shi, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C 3/068 (2006.01); C03C 3/064 (2006.01); C03C 3/062 (2006.01); C03C 3/066 (2006.01);
U.S. Cl.
CPC ...
Abstract
Glass has optical constants of a refractive index (nd) of 1.79 or over and an Abbe number (νd) of 27 or over and a specific gravity (D) of 3.20 or over and is free from devitrification in the interior of the glass in a reheat test. The glass has chemical durability according to the Powder Method (acid-proof property RA according to the Powder Method) which is Class 1.