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, 2026
Filed:
Mar. 01, 2023
Hoya Corporation, Tokyo, JP;
Hoya Optical Technology (Weihai) Co., Ltd., ShanDong, CN;
Hayato Sasaki, Tokyo, JP;
HOYA CORPORATION, Tokyo, JP;
HOYA OPTICAL TECHNOLOGY (WEIHAI) CO., LTD., Shandong, CN;
Abstract
Provided is optical glass in which a refractive index nd is 1.950 or more, an amount of POis 10.0 to 40.0 mass %, an amount of TiOis 5.0 to 40.0 mass %, an amount of NbOis 20.0 to 60.0 mass %, an amount of BiOis 20.0 mass % or less, a total amount of AlOand SiO[AlO+SiO] is 2.0 mass % or less, a total amount of LiO, NaO, and KO [LiO+NaO+KO] is 5.0 mass % or less, and a total amount of ZnO, SrO, and BaO [ZnO+SrO+BaO] is 0.01 to 12.0 mass %.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile