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:
Apr. 13, 2021
Nippon Electric Glass Co., Ltd., Shiga, JP;
Takahiro Matano, Shiga, JP;
Yuki Yokota, Shiga, JP;
Atsushi Tanaka, Shiga, JP;
Yoshihisa Takayama, Shiga, JP;
NIPPON ELECTRIC GLASS CO., LTD., Shiga, JP;
Abstract
Provided is a crystallized glass, which has a high fracture toughness value, and besides, is excellent in transparency. The crystallized glass includes, in terms of mass %, 40% to 70% of SiO, 5% to 40% of AlO, 2% to 25% of BO, 0% to 15% of MgO+ZnO, 0% to 20% of CaO+SrO+BaO, 0% to 8% of PO+TiO+ZrO, 1% to 20% of NaO+KO, and 0% to 6% of LiO, has a crystallinity of from 1% to 50%, and has an average visible-light transmittance of 50% or more at a thickness of 0.8 mm and a wavelength of from 380 nm to 780 nm.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile