Glass Spacer and Hard Disc Drive Device
「Glass Spacer and Hard Disc Drive Device」对应一条老挝专利公开记录，由 HOYA CORPORATION 于 2018-10-01 提交申请，当前状态为已注册。关键编号与类型标注为 申请号 P/839 / DIP 编号 LAP839 / 主管局代码 LA / 保护类型 Patent - PCT National Phase。时间线要点：公开/公告日 2024-11-22；授权日 2024-11-18；届满/失效参考日 2038-10-01。国际分类 / IPC 标注为 G11B 17/038、G11B 23/00、G11B 25/04、G11B 5/65。发明人 / 设计人包括 EDA, Shinji、TAKANO Masao。代理机构 / 代理人记载为 Tilleke & Gibbins International Ltd。公开摘要提示：In order to suppress the occurrence of adhesion between magnetic disks and spacers when the。
P/839
图样
基础信息
- 类型
- 专利
- 申请号
P/839- 状态
- 已注册
- 申请人
- HOYA CORPORATION
- 代理机构
- Tilleke & Gibbins International Ltd
- 申请日期
- 2018-10-01
- 注册号
P/839- 公开 / 公告日
- 2024-11-22
- 注册 / 授权日
- 2024-11-18
- 到期日
- 2038-10-01
- 保护类型
- Patent - PCT National Phase
- 公报号
- 279 · 2024-11-22
- 优先权
- JP · 2017-191256 · 2017-09-29
- 申请人地址
- HOYA CORPORATION · 6-1 0- 1 Nishi-Shinjuku, Shinjuku-ku, Tokyo 1608347, Japan · JP
- 代理地址
- Tilleke & Gibbins International Ltd · No. 302/1B, 3rd Floor, Vieng Vang Tower, Unit 15, Boulichan Road, Dongpalan Thong Village, Sisattanak District, Vientiane Capital, Lao PDR · LA
- 国际分类
- G11B 17/038 · G11B 23/00 · G11B 25/04 · G11B 5/65
- 商品 / 服务
- —
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摘要
In order to suppress the occurrence of adhesion between magnetic disks and spacers when the
magnetic disks and the spacers are removed from a hard disk drive apparatus in which the
magnetic disks and the spacers are installed, a surface roughness Ra of a main surface of a ring-shaped glass spacer to be arranged in contact with a magnetic disk is set to be not larger than 1.0
pm, and an average inclination RAa of the main surface is set to be at least 0.02.
In order to suppress the occurrence of adhesion between magnetic disks and spacers when the
magnetic disks and the spacers are removed from a hard disk drive apparatus in which the
magnetic disks and the spacers are installed, a surface roughness Ra of a main surface of a ring-shaped glass spacer to be arranged in contact with a magnetic disk is set to be not larger than 1.0
pm, and an average inclination RAa of the main surface is set to be at least 0.02.
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