METHOD FOR MANUFACTURING GLASS PLATE, METHOD FOR CHAMFERING GLASS PLATE, AND METHOD FOR MANUFACTURING MAGNETIC DISK
专利「METHOD FOR MANUFACTURING GLASS PLATE, METHOD FOR CHAMFERING GLASS PLATE, AND METHOD FOR MANUFACTURING MAGNETIC DISK」由 HOYA CORPORATION 持有，当前状态为已注册，申请号 P/782。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 CHAMFERING GLASS PLATE, AND METHOD FOR MANUFACTURING MAGNETIC DISK” is held by HOYA CORPORATION; status: 已注册. Search Laos IP records on LaoBiz.
P/782
图样
基础信息
- 类型
- 专利
- 申请号
P/782- 状态
- 已注册
- 申请人
- HOYA CORPORATION
- 代理机构
- Tilleke & Gibbins Lao Co., Ltd.
- 申请日期
- 2019-12-02
- 注册号
P/782- 公开/公告日
- 2023-10-20
- 注册/授权日
- 2023-10-17
- 届满日
- 2039-12-02
- 国际分类
- B23K 26/354 · C03B 29/02 · C03C 19/00 · G11B 5/73 · G11B 5/84
- 商品 / 服务
- —
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摘要
With a method for manufacturing a glass plate in which shape processing is performed on an edge surface of a glass plate having a disk shape, the disk-shaped glass plate has a main surface and an edge surface that is perpendicular to the main surface. The method includes a step of processing the edge surface into a target shape by irradiating the edge surface with a laser beam while moving the laser beam relative to the edge surface in a circumferential direction of the glass plate having the disk shape. A cross sectional intensity distribution of the laser beam with which the edge surface is irradiated is a single mode, and W1 > Th holds true and Pd x Th is in a range of 0.8 to 3.5 [W/mm] when a width of luminous flux of the laser beam in a thickness direction of the glass plate at an irradiation position of the edge surface is W1 [mm], a thickness of the glass plate is Th [mm], and a power density of the laser beam is Pd.
With a method for manufacturing a glass plate in which shape processing is performed on an edge surface of a glass plate having a disk shape, the disk-shaped glass plate has a main surface and an edge surface that is perpendicular to the main surface. The method includes a step of processing the edge surface into a target shape by irradiating the edge surface with a laser beam while moving the laser beam relative to the edge surface in a circumferential direction of the glass plate having the disk shape. A cross sectional intensity distribution of the laser beam with which the edge surface is irradiated is a single mode, and W1 > Th holds true and Pd x Th is in a range of 0.8 to 3.5 [W/mm] when a width of luminous flux of the laser beam in a thickness direction of the glass plate at an irradiation position of the edge surface is W1 [mm], a thickness of the glass plate is Th [mm], and a power density of the laser beam is Pd.