SG126725A1 - Magnetic recording medium, method of manufacturingthe same, and magnetic reording and reproduction apparatus - Google Patents
Magnetic recording medium, method of manufacturingthe same, and magnetic reording and reproduction apparatusInfo
- Publication number
- SG126725A1 SG126725A1 SG200304116A SG200304116A SG126725A1 SG 126725 A1 SG126725 A1 SG 126725A1 SG 200304116 A SG200304116 A SG 200304116A SG 200304116 A SG200304116 A SG 200304116A SG 126725 A1 SG126725 A1 SG 126725A1
- Authority
- SG
- Singapore
- Prior art keywords
- magnetic
- film
- magnetic recording
- recording medium
- forming
- Prior art date
Links
Landscapes
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Thin Magnetic Films (AREA)
Abstract
A magnetic recording medium includes a nonmagnetic substrate on which is provided at least a softly magnetic under-film) an orientation control film that controls an orientation of a film directly above, a perpendicular magnetic recording film having an axis of easy magnetization oriented to be mainly perpendicular to the substrate and a protective film, wherein the orientation control film has a material composition forming a Cl1b structure. The magnetic recording medium is manufactured by a method including carrying out, in order, at least a step of forming a softly magnetic under-film on a nonmagnetic substrate, a step of forming an orientation control film that controls an orientation of a film directly above, a step of forming a perpendicular magnetic recording film having an axis of easy magnetization oriented to be mainly perpendicular to the substrate, and a step of farming a protective film. A magnetic recording and reproduction apparatus includes the magnetic recording medium and a magnetic head that records and reproduces information on the magnetic recording medium, wherein the magnetic head is a magnetic monopole head.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002204661A JP4127775B2 (en) | 2002-07-12 | 2002-07-12 | Magnetic recording medium, manufacturing method thereof, and magnetic recording / reproducing apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
SG126725A1 true SG126725A1 (en) | 2006-11-29 |
Family
ID=31710202
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG200304116A SG126725A1 (en) | 2002-07-12 | 2003-07-10 | Magnetic recording medium, method of manufacturingthe same, and magnetic reording and reproduction apparatus |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP4127775B2 (en) |
CN (1) | CN1270294C (en) |
SG (1) | SG126725A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101777354A (en) * | 2004-06-30 | 2010-07-14 | Hoya株式会社 | Perpendicular magnetic recording disk and process for producing the same |
CN101138025B (en) * | 2005-03-17 | 2010-05-19 | 昭和电工株式会社 | Production process of magnetic recording medium, magnetic recording medium, and magnetic recording and reproducing apparatus |
JP5105332B2 (en) | 2008-08-11 | 2012-12-26 | 昭和電工株式会社 | Magnetic recording medium, manufacturing method thereof, and magnetic recording / reproducing apparatus |
JP5105333B2 (en) | 2008-08-18 | 2012-12-26 | 昭和電工株式会社 | Magnetic recording medium, manufacturing method thereof, and magnetic recording / reproducing apparatus |
US20120044595A1 (en) * | 2010-08-23 | 2012-02-23 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular magnetic recording medium (pmrm) and magnetic storage systems using the same |
US20120251842A1 (en) * | 2011-03-31 | 2012-10-04 | Wd Media, Inc. | Low roughness heatsink design for heat assisted magnetic recording media |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5738927A (en) * | 1994-06-08 | 1998-04-14 | Hitachi, Ltd. | Perpendicular magnetic recording media and magnetic recording device |
US20020058161A1 (en) * | 2000-09-28 | 2002-05-16 | Hitachi, Ltd. | Perpendicular magnetic recording medium and magnetic storage apparatus using the same |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02141918A (en) * | 1988-11-22 | 1990-05-31 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
JPH11283228A (en) * | 1998-03-26 | 1999-10-15 | Showa Denko Kk | Magnetic recording medium |
JP2000099935A (en) * | 1998-09-28 | 2000-04-07 | Hitachi Metals Ltd | Intra-surface magnetic recording medium |
JP2000339659A (en) * | 1999-05-31 | 2000-12-08 | Hitachi Ltd | Magnetic recording medium and magnetic storage device |
MY138888A (en) * | 1999-07-16 | 2009-08-28 | Showa Denko Kk | Magnetic recording medium and magnetic recording and reproducing device. |
JP3764833B2 (en) * | 1999-10-04 | 2006-04-12 | 株式会社日立グローバルストレージテクノロジーズ | Magnetic recording medium and magnetic storage device |
JP2002074639A (en) * | 2000-08-24 | 2002-03-15 | Hitachi Ltd | Perpendicular magnetic recording medium and magnetic storage device |
-
2002
- 2002-07-12 JP JP2002204661A patent/JP4127775B2/en not_active Expired - Lifetime
-
2003
- 2003-07-10 SG SG200304116A patent/SG126725A1/en unknown
- 2003-07-11 CN CN 03154627 patent/CN1270294C/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5738927A (en) * | 1994-06-08 | 1998-04-14 | Hitachi, Ltd. | Perpendicular magnetic recording media and magnetic recording device |
US20020058161A1 (en) * | 2000-09-28 | 2002-05-16 | Hitachi, Ltd. | Perpendicular magnetic recording medium and magnetic storage apparatus using the same |
Also Published As
Publication number | Publication date |
---|---|
CN1487507A (en) | 2004-04-07 |
JP4127775B2 (en) | 2008-07-30 |
JP2004046990A (en) | 2004-02-12 |
CN1270294C (en) | 2006-08-16 |
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