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:
Nov. 03, 2026
Filed:
Jun. 25, 2025
Hoya Corporation, Tokyo, JP;
HOYA CORPORATION, Tokyo, JP;
Abstract
Near-infrared absorbing glass contains at least four kinds of main cations selected from P, Li, Cu, Al, Ba, Sr, Ca, Mg, Zn, K, Na, La, Gd, and Y, contains P, Li, and Cu, and contains at least O as anions, wherein a ratio (O ion/P ion) is 3.15 or less; in a glass composition indicated by anion %, a content of O ions is 90.0 anion % or more; and in an oxide-based glass composition on a molar basis, a total content of oxides of the main cations is 90.0% or more, a total content (MgO+AlO) is 8.0% or less, a ratio ((NaO+KO+ZnO)/LiO) is 2.4 or less, a total content (BO+SiO) is 3.0% or less, and a content of CuO is α% or more, where αis calculated by Equation 1 below, and in Equation 1, R is the ratio (O ion/P ion).α=70400×exp(−2.855×R) (Equation 1)
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