Invention Grant
- Patent Title: Method of manufacturing a glass substrate for magnetic disk
- Patent Title (中): 制造磁盘用玻璃基板的方法
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Application No.: US12650853Application Date: 2009-12-31
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Publication No.: US08127433B2Publication Date: 2012-03-06
- Inventor: Yoshinori Marumo
- Applicant: Yoshinori Marumo
- Applicant Address: JP Tokyo
- Assignee: Hoya Corporation
- Current Assignee: Hoya Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2005-86024 20050324
- Main IPC: G11B5/27
- IPC: G11B5/27 ; B44C1/22
Abstract:
In a manufacturing method of a glass substrate for a magnetic disk including a cleaning process of the glass substrate, the cleaning process includes a process of contacting the glass substrate with a cleaning solution containing a compound, such as thioglycolic acid or a thioglycolic acid derivative, having a thiol group as a functional group.
Public/Granted literature
- US20100104743A1 METHOD OF MANUFACTURING A GLASS SUBSTRATE FOR MAGNETIC DISK Public/Granted day:2010-04-29
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