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:
May. 13, 2025
Filed:
Dec. 25, 2020
Hoya Corporation, Tokyo, JP;
Masashi Kaneko, Tokyo, JP;
Yuki Shiota, Tokyo, JP;
HOYA CORPORATION, Tokyo, JP;
Abstract
The near-infrared absorbing glass contains at least, as constituent ions, P ions; Cu ions; O ions; one or more ions selected from the group consisting of Li ions, Na ions and K ions; and one or more ions selected from the group consisting of Mg ions, Ca ions, Sr ions and Ba ions, wherein, in a glass composition expressed in cation %, the content of Cu ions is 15.0 cation % or lower; the content of P ions is 55.0 cation % or lower; and a cation ratio of the total content of Al ions and P ions relative to the total content of Mg ions, Ca ions, Sr ions, Ba ions, Zn ions and Cu ions ((Al ions+P ions)/(Mg ions+Ca ions+Sr ions+Ba ions+Zn ions+Cu ions)) is 5.300 or lower.