JPS6473528A - Substrate for magnetic disk and production thereof - Google Patents
Substrate for magnetic disk and production thereofInfo
- Publication number
- JPS6473528A JPS6473528A JP22967987A JP22967987A JPS6473528A JP S6473528 A JPS6473528 A JP S6473528A JP 22967987 A JP22967987 A JP 22967987A JP 22967987 A JP22967987 A JP 22967987A JP S6473528 A JPS6473528 A JP S6473528A
- Authority
- JP
- Japan
- Prior art keywords
- disk
- substrate
- magnetic disk
- groove
- concentrical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Manufacturing Of Magnetic Record Carriers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE:To improve a sliding wear resistance characteristic (CSS resistance) by coating the surface of a metallic disk with a resin film provided with concentrical or spiral grooves. CONSTITUTION:The surface of the metallic disk 1 is coated with the resin film 2 which is provided with the concentrical or spiral grooves having <=10,000Angstrom groove width, 100-5,000Angstrom groove depth and <=10,000Angstrom groove pitch and has >=1mum thickness. The metallic disk 1 is formed by working a metal such as aluminum or alloy essentially consisting of aluminum to a disk shape. The substrate for the magnetic disk formed with the grooves having the uniform groove width, depth and pitch is, therefore, produced by the simple stage. The CSS resistance is thereby improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22967987A JPS6473528A (en) | 1987-09-16 | 1987-09-16 | Substrate for magnetic disk and production thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22967987A JPS6473528A (en) | 1987-09-16 | 1987-09-16 | Substrate for magnetic disk and production thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6473528A true JPS6473528A (en) | 1989-03-17 |
Family
ID=16895992
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22967987A Pending JPS6473528A (en) | 1987-09-16 | 1987-09-16 | Substrate for magnetic disk and production thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6473528A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03127327A (en) * | 1989-10-13 | 1991-05-30 | Hitachi Ltd | Magnetic disk, manufacturing method and magnetic disk device |
EP0511622A2 (en) * | 1991-05-01 | 1992-11-04 | Hitachi Maxell Ltd. | Magnetic disk |
US7227717B1 (en) * | 2001-06-18 | 2007-06-05 | Seagate Technology Llc | Asymmetric disk surface properties in one head disk drives |
-
1987
- 1987-09-16 JP JP22967987A patent/JPS6473528A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03127327A (en) * | 1989-10-13 | 1991-05-30 | Hitachi Ltd | Magnetic disk, manufacturing method and magnetic disk device |
EP0511622A2 (en) * | 1991-05-01 | 1992-11-04 | Hitachi Maxell Ltd. | Magnetic disk |
EP0511622A3 (en) * | 1991-05-01 | 1993-03-03 | Hitachi Maxell Ltd. | Magnetic disk |
US7227717B1 (en) * | 2001-06-18 | 2007-06-05 | Seagate Technology Llc | Asymmetric disk surface properties in one head disk drives |
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