JP2006505091A5 - - Google Patents
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- JP2006505091A5 JP2006505091A5 JP2004548381A JP2004548381A JP2006505091A5 JP 2006505091 A5 JP2006505091 A5 JP 2006505091A5 JP 2004548381 A JP2004548381 A JP 2004548381A JP 2004548381 A JP2004548381 A JP 2004548381A JP 2006505091 A5 JP2006505091 A5 JP 2006505091A5
- Authority
- JP
- Japan
- Prior art keywords
- patterned
- medium
- patterned region
- magnetic recording
- region
- 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
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- 239000000758 substrate Substances 0.000 claims 3
Claims (6)
- 磁気記録媒体であって、
基板と、
前記基板上に形成された垂直磁気異方性を示す磁気記録層であって、パターン化領域および非パターン化領域により画定された表面変型のパターンを含む磁気記録層とを含み、前記パターン化領域が前記非パターン化領域とは異なる仕方で磁化されている媒体。 - 前記パターン化領域の少なくとも一部が５．０μｍ未満の幅を画定する、請求項１に記載の媒体。
- 前記パターン化領域がバンプを含み、前記非パターン化領域が前記バンプ間の領域を含んでいて、
前記パターン化領域が、バンプ、ピット、リッジ、レール、チャネルおよびグルーブからなる群から選択された特徴を含む、請求項１に記載の媒体。 - 前記基板と前記磁気記録層との間に形成されていて、前記表面変型のパターンを画定する層を更に含み、前記磁気記録層が前記表面変型のパターンに実質的に合致する、請求項１に記載の媒体。
- 前記パターン化領域が全て実質的に同様に磁化されて、前記非パターン化領域が無作為に磁化されている、請求項１に記載の媒体。
- 前記パターン化領域が、前記非パターン化領域の極性とは反対の極性に磁化される、請求項１に記載の媒体。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/283,401 US6999279B2 (en) | 2002-10-29 | 2002-10-29 | Perpendicular patterned magnetic media |
| PCT/US2003/032594 WO2004040559A2 (en) | 2002-10-29 | 2003-10-16 | Perpendicular patterned magnetic media |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006505091A JP2006505091A (ja) | 2006-02-09 |
| JP2006505091A5 true JP2006505091A5 (ja) | 2006-11-30 |
Family
ID=32107516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004548381A Pending JP2006505091A (ja) | 2002-10-29 | 2003-10-16 | 垂直パターン化磁気媒体 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6999279B2 (ja) |
| JP (1) | JP2006505091A (ja) |
| CN (1) | CN1708788A (ja) |
| AU (1) | AU2003277386A1 (ja) |
| DE (1) | DE10393593T5 (ja) |
| WO (1) | WO2004040559A2 (ja) |
Families Citing this family (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7019924B2 (en) | 2001-02-16 | 2006-03-28 | Komag, Incorporated | Patterned medium and recording head |
| US20050036223A1 (en) * | 2002-11-27 | 2005-02-17 | Wachenschwanz David E. | Magnetic discrete track recording disk |
| US7147790B2 (en) * | 2002-11-27 | 2006-12-12 | Komag, Inc. | Perpendicular magnetic discrete track recording disk |
| US6947235B2 (en) * | 2003-12-03 | 2005-09-20 | Hitachi Global Storage Technologies Netherlands B.V. | Patterned multilevel perpendicular magnetic recording media |
| JP2006031856A (ja) * | 2004-07-16 | 2006-02-02 | Toshiba Corp | 垂直磁気記録用のパターンドディスク媒体及び同媒体を搭載した磁気ディスクドライブ |
| DE102005022473B4 (de) * | 2005-05-14 | 2007-05-24 | Forschungszentrum Karlsruhe Gmbh | Vorrichtung zur Dämpfung von Reflexionen elektromagnetischer Wellen, Verfahren zu ihrer Herstellung und ihre Verwendung |
| JP4675722B2 (ja) * | 2005-09-02 | 2011-04-27 | 株式会社東芝 | 磁気記録媒体 |
| DE202006000083U1 (de) | 2006-01-03 | 2007-02-08 | Monolith GmbH Bürosysteme | Bindesystem zum Binden von Blattgut |
| US8900655B2 (en) | 2006-10-04 | 2014-12-02 | Seagate Technology Llc | Method for fabricating patterned magnetic recording device |
| US7704614B2 (en) * | 2006-10-20 | 2010-04-27 | Seagate Technology Llc | Process for fabricating patterned magnetic recording media |
| US7532422B2 (en) * | 2006-10-25 | 2009-05-12 | Mra Tek, Llc | Method and system for distinguishing spatial and thermal defects on perpendicular media |
| JP2008152903A (ja) * | 2006-11-21 | 2008-07-03 | Toshiba Corp | 磁気記録媒体、その製造方法、および磁気記録装置 |
| US7919029B2 (en) * | 2006-12-01 | 2011-04-05 | Seagate Technology Llc | Thermal compensated stampers/imprinters |
| JP4296204B2 (ja) * | 2007-03-26 | 2009-07-15 | 株式会社東芝 | 磁気記録媒体 |
| JP4703604B2 (ja) * | 2007-05-23 | 2011-06-15 | 株式会社東芝 | 磁気記録媒体およびその製造方法 |
| US7835099B2 (en) | 2007-06-29 | 2010-11-16 | Seagate Technology Llc | Method and system for error checking in a bit-patterned media |
| JP4382843B2 (ja) * | 2007-09-26 | 2009-12-16 | 株式会社東芝 | 磁気記録媒体およびその製造方法 |
| US7864470B2 (en) * | 2007-10-11 | 2011-01-04 | Seagate Technology Llc | Patterned media with spacings adjusted by a skew function |
| DE202008000878U1 (de) | 2008-01-21 | 2008-03-20 | Purple Cows Gmbh | Bindering zum Binden von Blattgut |
| US7835094B2 (en) * | 2008-07-02 | 2010-11-16 | Seagate Technology Llc | Embedded track information for patterned media |
| US7920354B2 (en) * | 2008-09-15 | 2011-04-05 | Seagate Technology Llc | Phase servo patterns for bit patterned media |
| US8824079B2 (en) * | 2008-09-15 | 2014-09-02 | Seagate Technology Llc | Servo patterns for bit patterned media with multiple dots per servo period |
| US8947809B2 (en) * | 2008-09-19 | 2015-02-03 | Seagate Technology Llc | Encoding scheme for bit patterned media |
| US8339722B1 (en) * | 2008-11-17 | 2012-12-25 | Marvell International Ltd. | Methods of demodulating a servo positon error signal on patterned media |
| JP2010134977A (ja) * | 2008-12-02 | 2010-06-17 | Toshiba Storage Device Corp | 磁気記録媒体及び磁気記憶装置 |
| US9111565B2 (en) * | 2009-01-16 | 2015-08-18 | Seagate Technology Llc | Data storage device with both bit patterned and continuous media |
| US7960044B2 (en) * | 2009-03-27 | 2011-06-14 | Hitachi Global Storage Technologies Netherlands B.V. | Patterned-media perpendicular magnetic recording disk with servo regions having magnetized servo pillars and oppositely-magnetized servo trenches |
| US8817415B2 (en) * | 2011-06-13 | 2014-08-26 | Imation Corp. | Erasure of magnetic storage media having perpendicular anisotropy |
| US8767342B2 (en) | 2011-06-13 | 2014-07-01 | Imation Corp. | Erasure and servowriting of magnetic storage media having perpendicular anistropy |
| US8797674B2 (en) | 2011-06-13 | 2014-08-05 | Imation Corp. | Servo mark length matched to write head gap for magnetic storage media |
| US8804276B2 (en) | 2011-06-13 | 2014-08-12 | Imation Corp. | Continuous biasing and servowriting of magnetic storage media having perpendicular anisotropy |
| US8867157B2 (en) | 2012-04-04 | 2014-10-21 | Imation Corp. | Perpendicular pole head for servo writing magnetic media |
| US9147423B2 (en) | 2012-04-17 | 2015-09-29 | HGST Netherlands B.V. | Method for improving a patterned perpendicular magnetic recording disk with annealing |
| US8643968B2 (en) | 2012-04-26 | 2014-02-04 | Imation Corp. | Methods and systems for magnetic media servo writing |
| US8867167B2 (en) | 2012-04-26 | 2014-10-21 | Imation Corp. | Tapered pole heads for magnetic media |
| US8760802B2 (en) | 2012-04-26 | 2014-06-24 | Imation Corp. | Systems and methods for processing magnetic media with first and second magnetic gaps adjacent opposite sides of the recording layer |
| US8797681B2 (en) | 2012-04-26 | 2014-08-05 | Imation Corp. | Servo write head having plural spaced front blocks coupled by magnetic posts to a back bar |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5963005A (ja) * | 1982-10-04 | 1984-04-10 | Toshiba Corp | 磁気記録方式 |
| US4656546A (en) * | 1985-01-22 | 1987-04-07 | Digital Equipment Corporation | Vertical magnetic recording arrangement |
| JP3254743B2 (ja) | 1992-08-17 | 2002-02-12 | ソニー株式会社 | 位置決め信号の書き込み方法 |
| JP3344495B2 (ja) | 1993-03-04 | 2002-11-11 | ソニー株式会社 | 磁気ディスク装置 |
| JP3271406B2 (ja) | 1993-11-30 | 2002-04-02 | ソニー株式会社 | 垂直磁気記録媒体及びその垂直磁気記録媒体への信号記録方法 |
| US5537282A (en) | 1994-07-15 | 1996-07-16 | Treves; David | Data storage disk having improved tracking capability |
| US5723033A (en) | 1995-09-06 | 1998-03-03 | Akashic Memories Corporation | Discrete track media produced by underlayer laser ablation |
| US5991104A (en) | 1996-11-27 | 1999-11-23 | Seagate Technology, Inc. | Using servowriter medium for quickly written servo-patterns on magnetic media |
| DE19982817T1 (de) | 1998-02-10 | 2001-03-22 | Seagate Technology Llc | Magnetaufzeichnungsmedium mit gemustertem Substrat |
| JPH11296845A (ja) | 1998-04-14 | 1999-10-29 | Tdk Corp | 磁気ディスク媒体および磁気記録装置 |
| US6168845B1 (en) | 1999-01-19 | 2001-01-02 | International Business Machines Corporation | Patterned magnetic media and method of making the same using selective oxidation |
| JP2000306236A (ja) | 1999-04-22 | 2000-11-02 | Sony Corp | 着磁装置及び着磁方法 |
| US6421195B1 (en) | 1999-09-20 | 2002-07-16 | International Business Machines Corporation | Magnetic disk media with patterned sections |
| US6383597B1 (en) | 2000-06-21 | 2002-05-07 | International Business Machines Corporation | Magnetic recording media with magnetic bit regions patterned by ion irradiation |
| US6391430B1 (en) | 2000-06-21 | 2002-05-21 | International Business Machines Corporation | Patterned magnetic recording media with discrete magnetic regions separated by regions of antiferromagnetically coupled films |
| US6563673B2 (en) | 2000-09-12 | 2003-05-13 | Seagate Technology Llc | Method and apparatus for minimizing slider fly heights over patterned media |
| US6657809B2 (en) | 2001-01-29 | 2003-12-02 | International Business Machines Corporation | Method and apparatus for positioning a transducer using a phase difference in surface profile variations on a storage medium |
-
2002
- 2002-10-29 US US10/283,401 patent/US6999279B2/en not_active Expired - Lifetime
-
2003
- 2003-10-16 DE DE10393593T patent/DE10393593T5/de not_active Withdrawn
- 2003-10-16 AU AU2003277386A patent/AU2003277386A1/en not_active Abandoned
- 2003-10-16 CN CNA2003801025218A patent/CN1708788A/zh active Pending
- 2003-10-16 JP JP2004548381A patent/JP2006505091A/ja active Pending
- 2003-10-16 WO PCT/US2003/032594 patent/WO2004040559A2/en active Application Filing
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