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. 09, 1984
Filed:
Sep. 12, 1983
Hiroyuki Kodama, Tokyo, JP;
Nippon Kogaku K.K., Tokyo, JP;
Abstract
A phosphate optical glass comprises P.sub.2 O.sub.5 of 40-55 weight percents, R.sub.2 O of 20-40 weight percents (wherein R is an alkali metal or a mixture of alkali metals selected from the group consisting of Li, Na and K), TiO.sub.2 of 8-20 weight percents, WO.sub.3 of 1-12 weight percents (providing that the WO.sub.3 content be less than TiO.sub.2), As.sub.2 O.sub.3 of 0.1-4 weight percents, MgO of 0-7, CaO of 0-11, BaO of 0-12, ZnO of 0-12 PbO of 0-18, Nb.sub.2 O.sub.5 of 0-20, Ta.sub.2 O.sub.5 of 0-10, SiO.sub.2 of 0-3, ZrO.sub.2 of 0-3, La.sub.2 O.sub.3 of 0-3, Y.sub.2 O.sub.3 of 0-3 and F of 0-5.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile