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.

Date of Patent:
May. 26, 2015

Filed:

Apr. 19, 2012
Applicants:

Kazuaki Hashimoto, Tokyo, JP;

Go Chiwata, Tokyo, JP;

Dongna Qin, Tokyo, JP;

Masatomo Shibui, Hanoi, VN;

Inventors:

Kazuaki Hashimoto, Tokyo, JP;

Go Chiwata, Tokyo, JP;

Dongna Qin, Tokyo, JP;

Masatomo Shibui, Hanoi, VN;

Assignees:

HOYA CORPORATION, Tokyo, JP;

HOEV COMPANY, LIMITED, Hanoi, VN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 1/00 (2006.01); B32B 3/00 (2006.01); C03C 15/00 (2006.01); C03C 21/00 (2006.01);
U.S. Cl.
CPC ...
C03C 15/00 (2013.01); C03C 21/002 (2013.01);
Abstract

A cover glass for use in a mobile device such as a touch-panel mobile telephone has a thickness in the range of, for example, 0.3 mm to 1.5 mm. A recess that can be recognized as a character or a figure when watching from the front side of the mobile device or a recess that can be recognized when touching from the front side of the mobile device is formed on at least one of opposite main surfaces of the cover glass. A surface of this recess is an etched surface treated by etching.


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