Tempered glass plate

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United States of America Patent

PATENT NO 9944550
APP PUB NO 20170022089A1
SERIAL NO

15213916

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
AGC INCCHIYODA-KU TOKYO 1008405

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ezaki, Shigeru Kawasaki, JP 1 0
Fukami, Masao Tokyo, JP 12 383
Kato, Yasumasa Tokyo, JP 34 277
Ohta, Shinya Tokyo, JP 1 0
Yoda, Kazushige Tokyo, JP 10 100

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