Invention Application
- Patent Title: TEMPERED GLASS PLATE
- Patent Title (中): 温度玻璃板
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Application No.: US15213916Application Date: 2016-07-19
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Publication No.: US20170022089A1Publication Date: 2017-01-26
- Inventor: Kazushige YODA , Masao FUKAMI , Shinya OHTA , Yasumasa KATO , Shigeru EZAKI
- Applicant: ASAHI GLASS COMPANY, LIMITED
- Applicant Address: JP Tokyo
- Assignee: ASAHI GLASS COMPANY, LIMITED
- Current Assignee: ASAHI GLASS COMPANY, LIMITED
- Current Assignee Address: JP Tokyo
- Priority: JP2015-147114 20150724
- Main IPC: C03B27/02
- IPC: C03B27/02 ; C03C3/087 ; C03C3/078

Abstract:
There is provided a tempered glass plate, wherein a thickness of the tempered glass plate is less than or equal to 2.7 mm, wherein on a surface of the tempered glass plate, a plurality of stress marks are formed, wherein a distance between closest stress marks of the plurality of stress marks is less than or equal to 20 mm, wherein the surface of the tempered glass plate includes a first virtual circle that is formed by connecting points that are separated from a center of one of the plurality of stress marks by 2.5 mm, wherein the tempered glass plate includes a non elastic-wave region that is not affected by an elastic-wave generated during fracturing, and wherein, in the non elastic-wave region, an average number of cracks that exist in the first virtual circle is greater than or equal to 3.4.
Public/Granted literature
- US09944550B2 Tempered glass plate Public/Granted day:2018-04-17
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