MY182274A - Glass substrate for information recording medium and method for manufacturing the same - Google Patents
Glass substrate for information recording medium and method for manufacturing the sameInfo
- Publication number
- MY182274A MY182274A MYPI2014703885A MYPI2014703885A MY182274A MY 182274 A MY182274 A MY 182274A MY PI2014703885 A MYPI2014703885 A MY PI2014703885A MY PI2014703885 A MYPI2014703885 A MY PI2014703885A MY 182274 A MY182274 A MY 182274A
- Authority
- MY
- Malaysia
- Prior art keywords
- glass substrate
- recording medium
- information recording
- manufacturing
- same
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/739—Magnetic recording media substrates
- G11B5/73911—Inorganic substrates
- G11B5/73921—Glass or ceramic substrates
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Magnetic Record Carriers (AREA)
Abstract
The method for manufacturing the glass substrate (1G) for an information recording medium is a method for manufacturing a glass substrate for an information recording medium to be used for an information recording medium (1) which has a magnetic thin film layer (23) formed on a main surface (14) of the glass substrate (1G) and has a recording density of equal to or greater than 600 Gbit per 6.45 square cm in a magnetic recording surface. An average value of SiOH/Si of a main surface of the glass substrate (1G) after being subjected to an alkali treatment in which the glass substrate (1G) for an information recording medium is immersed in a sodium hydroxide solution at pH 11 at 40?C for 30 minutes is 0.20 to 0.50 inclusive.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012147404 | 2012-06-29 | ||
PCT/JP2013/065354 WO2014002693A1 (en) | 2012-06-29 | 2013-06-03 | Information recording medium glass substrate, and manufacturing method of information recording medium glass substrate |
Publications (1)
Publication Number | Publication Date |
---|---|
MY182274A true MY182274A (en) | 2021-01-18 |
Family
ID=49782859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MYPI2014703885A MY182274A (en) | 2012-06-29 | 2013-06-03 | Glass substrate for information recording medium and method for manufacturing the same |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP6021911B2 (en) |
CN (1) | CN104488028B (en) |
MY (1) | MY182274A (en) |
SG (1) | SG11201408463YA (en) |
WO (1) | WO2014002693A1 (en) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030188553A1 (en) * | 2002-04-08 | 2003-10-09 | Mann Larry G. | Direct bonding methods using lithium |
JP4479528B2 (en) * | 2004-07-27 | 2010-06-09 | 富士電機デバイステクノロジー株式会社 | Method of plating on glass substrate, method of manufacturing disk substrate for magnetic recording medium using the plating method, and method of manufacturing perpendicular magnetic recording medium |
CN1740388A (en) * | 2004-07-27 | 2006-03-01 | 富士电机电子设备技术株式会社 | Method of manufacturing a disk substrate for a magnetic recording medium |
JP3926371B2 (en) * | 2005-02-10 | 2007-06-06 | 信越石英株式会社 | Silica glass plate and method for producing the same |
CN101512332B (en) * | 2006-09-06 | 2013-10-09 | 株式会社堀场制作所 | Glass electrode and sensitive glass for the glass electrode |
JP2011175685A (en) * | 2008-06-27 | 2011-09-08 | Panasonic Corp | Method and apparatus for manufacturing multilayer information recording medium |
JP2010248071A (en) * | 2010-07-30 | 2010-11-04 | Toyo Sasaki Glass Co Ltd | Highly washable glass molded article |
-
2013
- 2013-06-03 WO PCT/JP2013/065354 patent/WO2014002693A1/en active Application Filing
- 2013-06-03 MY MYPI2014703885A patent/MY182274A/en unknown
- 2013-06-03 JP JP2014522501A patent/JP6021911B2/en active Active
- 2013-06-03 SG SG11201408463YA patent/SG11201408463YA/en unknown
- 2013-06-03 CN CN201380034239.4A patent/CN104488028B/en active Active
Also Published As
Publication number | Publication date |
---|---|
WO2014002693A1 (en) | 2014-01-03 |
JP6021911B2 (en) | 2016-11-09 |
CN104488028B (en) | 2017-10-27 |
CN104488028A (en) | 2015-04-01 |
SG11201408463YA (en) | 2015-02-27 |
JPWO2014002693A1 (en) | 2016-05-30 |
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