METHOD FOR MANUFACTURING GLASS PLATE, METHOD FOR MANUFACTURING GLASS SUBSTRATE FOR MAGNETIC DISK, METHOD FOR MANUFACTURING MAGNETIC DISK, AND ANNULAR GLASS PLATE
专利「METHOD FOR MANUFACTURING GLASS PLATE, METHOD FOR MANUFACTURING GLASS SUBSTRATE FOR MAGNETIC DISK, METHOD FOR MANUFACTURING MAGNETIC DISK, AND ANNULAR GLASS PLATE」由 HOYA CORPORATION 持有，当前状态为已注册，申请号 P/899。LaoBiz 老商通提供老挝知识产权信息检索与企业关联查询。
Patent “METHOD FOR MANUFACTURING GLASS PLATE, METHOD FOR MANUFACTURING GLASS SUBSTRATE FOR MAGNETIC DISK, METHOD FOR MANUFACTURING MAGNETIC DISK, AND ANNULAR GLASS PLATE” is held by HOYA CORPORATION; status: 已注册. Search Laos IP records on LaoBiz.
P/899
图样
基础信息
- 类型
- 专利
- 申请号
P/899- 状态
- 已注册
- 申请人
- HOYA CORPORATION
- 代理机构
- Tilleke & Gibbins Lao Co., Ltd
- 申请日期
- 2021-11-25
- 注册号
P/899- 公开/公告日
- 2026-01-23
- 注册/授权日
- 2026-01-08
- 届满日
- 2041-11-25
- 国际分类
- B23K 26/354 · C03B 29/02 · C03B 33/09 · C03C 19/00 · C03C 23/00
- 商品 / 服务
- —
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摘要
In a method for manufacturing a glass plate that includes chamfering processing for chamfering an edge surface of a glass plate, the chamfering 5 processing includes a step of forming a chamfered surface by irradiating the edge surface of the glass plate with a laser beam, and a step of heating the glass plate before the chamfered surface is formed. When a temperature of the glass blank at which the glass blank is heated is Tp ['C], a glass transition point of the glass blank is Tg ['C], and an average coefficient of linear thermal expansion 10 of the glassblankiso [U"C], (Tg-Tp)S -5.67 x 107. o+840issatisfied.
In a method for manufacturing a glass plate that includes chamfering processing for chamfering an edge surface of a glass plate, the chamfering 5 processing includes a step of forming a chamfered surface by irradiating the edge surface of the glass plate with a laser beam, and a step of heating the glass plate before the chamfered surface is formed. When a temperature of the glass blank at which the glass blank is heated is Tp ['C], a glass transition point of the glass blank is Tg ['C], and an average coefficient of linear thermal expansion 10 of the glassblankiso [U"C], (Tg-Tp)S -5.67 x 107. o+840issatisfied.