Title:
カバー部材および携帯情報端末
Document Type and Number:
Japanese Patent JP7092137
Kind Code:
B2
Abstract:
The present invention relates to a cover member (1) made of chemically strengthened glass for protecting an object to be protected, the cover member (1) being characterized by: at least one recessed part (7) being provided on at least one of a first main surface (3) and a second main surface (5) of the cover member (1); the cover member (1) integrally comprising a thin part (13) formed by the recessed part and a thick part (17) connecting with the thin part (13); and, defining tensile stress as positive and compressive stress as negative, the integral value S for main stress difference in the through-thickness direction of the thin part (13) at the position of the center of gravity of the thin part being less than 0 MPa.
Inventors:
Maya Hatano
Satoshi Kanasugi
Masao Ozeki
Satoshi Kanasugi
Masao Ozeki
Application Number:
JP2019541011A
Publication Date:
June 28, 2022
Filing Date:
September 06, 2018
Export Citation:
Assignee:
AGC Inc.
International Classes:
C03C21/00; C03C15/00; H04M1/02; H04M1/21
Domestic Patent References:
| JP2017001902A | ||||
| JP2013063889A | ||||
| JP2016145968A | ||||
| JP2013137383A | ||||
| JP2017001940A |
Attorney, Agent or Firm:
Intellectual Property Office