Title:
結晶化ガラス基板
Document Type and Number:
Japanese Patent JP7183275
Kind Code:
B2
Abstract:
To provide a crystallized glass substrate including a surface with a compressive stress layer, in which, CS is 400 to 1400 MPa and CT×(T−2×DOLzero)/CS×DOLzero is 0.60 or more, where CS (MPa) denotes a compressive stress on an outermost surface of the compressive stress layer, DOLzero (μm) denotes a stress depth of the compressive stress layer at which the compressive stress is 0 MPa, CT (MPa) denotes a central stress determined by curve analysis, and T (μm) denotes a thickness of the substrate.
Inventors:
Toshitake Yagi
Kohei Ogasawara
Yuki Motojima
Reika Kojima
Yutaka Yamashita
Naoyuki Goto
Kohei Ogasawara
Yuki Motojima
Reika Kojima
Yutaka Yamashita
Naoyuki Goto
Application Number:
JP2020535436A
Publication Date:
December 05, 2022
Filing Date:
August 09, 2018
Export Citation:
Assignee:
OHARA CORPORATION
International Classes:
C03C10/02; C03C10/04; C03C21/00
Domestic Patent References:
| JP2017001937A | ||||
| JP2016521237A | ||||
| JP2004149364A | ||||
| JP2011213576A | ||||
| JP2017530933A | ||||
| JP2017510541A |
Attorney, Agent or Firm:
Patent Attorney Corporation Peace International Patent Office
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