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:
Mar. 06, 2018
Filed:
Jun. 03, 2016
Ohara Inc., Sagamihara-shi, Kanagawa, JP;
Kiyoyuki Momono, Sagamihara, JP;
OHARA INC., Sagamihara-Shi, Kanagawa, JP;
Abstract
Provided is a high-strength crystallized glass or substrate having a high visible light transmittance and a good color balance, which is suitable for use in protecting members of portable electronic devices, optical devices and the like. Provided is a crystallized glass comprising, in terms of mol % on an oxide basis: an SiOcomponent of 30.0% or more and 70.0% or less, an AlOcomponent of 8.0% or more and 25.0%, an NaO component of 0% or more and 25.0% or less, an MgO component of 0% or more and 25.0% or less, a ZnO component of 0% or more and 30.0% or less and a TiOcomponent of 0% or more and 10.0% or less, the molar ratio [AlO/(MgO+ZnO)] having a value of 0.5 or more and 2.0 or less, and comprising one or more selected from RAlO, RTiO, RTiO, RSiO, RAlSiOand RAlSiOas a crystal phase.