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. 20, 2009
Filed:
Aug. 13, 2004
Koichiro Shiraishi, Tokyo, JP;
Koichiro Shiraishi, Tokyo, JP;
Hoya Corporation, Tokyo, JP;
Abstract
An optical glass that has high-refractivity and high-dispersion properties, that is less colored and that is suitable for a shapable glass material for press-shaping and various optical elements, the optical glass containing, as glass components and by mass %, 10 to 32% of PO, 27 to 65% of NbO, 10 to 30% of BaO, 0 to 12% of BO, more than 0% but not more than 20% of TiO, more than 0% but not more than 10% of total of LiO, NaO and KO, and more than 0% but not more than 1%, based on the total content of the said glass components, of SbO, and having a light transmittance that is 50% at a wavelength of 420 nm or shorter.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile