Substrate for Magnetic Disks, and Magnetic Disk
专利「Substrate for Magnetic Disks, and Magnetic Disk」由 HOYA CORPORATION 持有，当前状态为已注册，申请号 P/854。LaoBiz 老商通提供老挝知识产权信息检索与企业关联查询。
Patent “Substrate for Magnetic Disks, and Magnetic Disk” is held by HOYA CORPORATION; status: 已注册. Search Laos IP records on LaoBiz.
P/854
图样
基础信息
- 类型
- 专利
- 申请号
P/854- 状态
- 已注册
- 申请人
- HOYA CORPORATION
- 代理机构
- Tilleke & Gibbins Lao Co., Ltd
- 申请日期
- 2018-07-02
- 注册号
P/854- 公开/公告日
- 2025-12-19
- 注册/授权日
- 2025-04-22
- 届满日
- 2038-07-02
- 国际分类
- G11B 5/73 · G11B 5/82 · G11B 5/84
- 商品 / 服务
- —
办理流程
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关联分析
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摘要
A substrate for a magnetic disk includes a substrate main body having two main surfaces, and a fi.lm that is provided on the main surfaces and is made of a material having a loss factor of 0.1 or more. The substrate for a magnetic disk including the film has a thickness T of 0.700 mm or less, and a thickness D [mm] of the film provided on the main surfaces and the thickness T [mm] of the substrate for a magnetic disk including the fiIm satisfy a relationship D>0.0082/T-0.0015.
A substrate for a magnetic disk includes a substrate main body having two main surfaces, and a fi.lm that is provided on the main surfaces and is made of a material having a loss factor of 0.1 or more. The substrate for a magnetic disk including the film has a thickness T of 0.700 mm or less, and a thickness D [mm] of the film provided on the main surfaces and the thickness T [mm] of the substrate for a magnetic disk including the fiIm satisfy a relationship D>0.0082/T-0.0015.