JP2004110896A - 垂直磁気記録再生システム - Google Patents

垂直磁気記録再生システム Download PDF

Info

Publication number
JP2004110896A
JP2004110896A JP2002269481A JP2002269481A JP2004110896A JP 2004110896 A JP2004110896 A JP 2004110896A JP 2002269481 A JP2002269481 A JP 2002269481A JP 2002269481 A JP2002269481 A JP 2002269481A JP 2004110896 A JP2004110896 A JP 2004110896A
Authority
JP
Japan
Prior art keywords
magnetic
recording
track
magnetic pole
servo signal
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
Application number
JP2002269481A
Other languages
English (en)
Japanese (ja)
Other versions
JP2004110896A5 (enExample
Inventor
Tsutomu Aoyama
青山　勉
Kiichirou Ezaki
江▲崎▼　城一朗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TDK Corp
Original Assignee
TDK Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TDK Corp filed Critical TDK Corp
Priority to JP2002269481A priority Critical patent/JP2004110896A/ja
Publication of JP2004110896A publication Critical patent/JP2004110896A/ja
Publication of JP2004110896A5 publication Critical patent/JP2004110896A5/ja
Pending legal-status Critical Current

Links

Images

Landscapes

  • Magnetic Record Carriers (AREA)
  • Magnetic Heads (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
JP2002269481A 2002-09-17 2002-09-17 垂直磁気記録再生システム Pending JP2004110896A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002269481A JP2004110896A (ja) 2002-09-17 2002-09-17 垂直磁気記録再生システム

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002269481A JP2004110896A (ja) 2002-09-17 2002-09-17 垂直磁気記録再生システム

Publications (2)

Publication Number Publication Date
JP2004110896A true JP2004110896A (ja) 2004-04-08
JP2004110896A5 JP2004110896A5 (enExample) 2005-10-27

Family

ID=32267398

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002269481A Pending JP2004110896A (ja) 2002-09-17 2002-09-17 垂直磁気記録再生システム

Country Status (1)

Country Link
JP (1) JP2004110896A (enExample)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006344328A (ja) * 2005-06-10 2006-12-21 Toshiba Corp 磁気ディスク媒体およびレティクルならびに磁気記録再生装置
US7209313B2 (en) 2004-08-30 2007-04-24 Tdk Corporation Method for preventing reduction in a reproduced output of a servo signal in a magnetic recording medium
CN1328711C (zh) * 2004-07-23 2007-07-25 株式会社东芝 垂直记录图案化盘介质和装载有图案化盘介质的磁盘驱动器
JP2007287322A (ja) * 2007-07-09 2007-11-01 Tdk Corp 情報記録媒体および記録再生装置
JP2007305268A (ja) * 2006-05-15 2007-11-22 Nsk Ltd 軸受ユニット
US7319568B2 (en) 2004-07-16 2008-01-15 Kabushiki Kaisha Toshiba Magnetic recording media, magnetic recording apparatus, and stamper
JP2008171491A (ja) * 2007-01-10 2008-07-24 Fuji Electric Device Technology Co Ltd 垂直記録ディスクリートトラックメディアおよびそのサーボパターン磁化方法
JP2008204532A (ja) * 2007-02-19 2008-09-04 Toshiba Corp 原盤の作製方法、磁気記録媒体の製造方法および磁気記録媒体
US7532423B2 (en) 2005-02-16 2009-05-12 Tdk Corporation Magnetic recording medium, recording/reproducing apparatus, and stamper
US7548388B2 (en) 2005-02-16 2009-06-16 Tdk Corporation Magnetic recording medium, recording/reproducing apparatus, and stamper
US7623311B2 (en) 2005-03-18 2009-11-24 Kabushiki Kaisha Toshiba Recording media, recording and reproducing apparatus, and method for recording and reproducing
US7746587B2 (en) 2006-03-06 2010-06-29 Kabushiki Kaisha Toshiba Magnetic recording apparatus and magnetic recording and reproducing apparatus
JP2010225203A (ja) * 2009-03-19 2010-10-07 Fujitsu Ltd 磁気記録媒体および磁気再生装置
US7848049B2 (en) 2008-07-23 2010-12-07 Toshiba Storage Device Corporation Magnetic disk apparatus and magnetic disk access control method
US7859779B2 (en) 2008-07-23 2010-12-28 Toshiba Storage Device Corporation Magnetic disk apparatus and magnetic disk access controlling method
US7933088B2 (en) 2007-12-27 2011-04-26 Kabushiki Kaisha Toshiba Disk drive having a disk of discrete-track media type
US8070968B2 (en) 2009-03-13 2011-12-06 Kabushiki Kaisha Toshiba Ultraviolet-curable resin material for pattern transfer and magnetic recording medium manufacturing method using the same
US8097351B2 (en) 2005-02-03 2012-01-17 Kabushiki Kaisha Toshiba Magnetic recording apparatus
US8159767B2 (en) 2008-12-10 2012-04-17 Kabushiki Kaisha Toshiba Repeatable runout evaluation method for a stamper
US8173029B2 (en) 2009-03-18 2012-05-08 Kabushiki Kaisha Toshiba Magnetic recording medium manufacturing method
US8372575B2 (en) 2009-03-13 2013-02-12 Kabushiki Kaisha Toshiba Ultraviolet-curing resin material for pattern transfer and magnetic recording medium manufacturing method using the same

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7319568B2 (en) 2004-07-16 2008-01-15 Kabushiki Kaisha Toshiba Magnetic recording media, magnetic recording apparatus, and stamper
CN100385510C (zh) * 2004-07-16 2008-04-30 株式会社东芝 磁记录介质、磁记录设备以及压模
CN1328711C (zh) * 2004-07-23 2007-07-25 株式会社东芝 垂直记录图案化盘介质和装载有图案化盘介质的磁盘驱动器
US7209313B2 (en) 2004-08-30 2007-04-24 Tdk Corporation Method for preventing reduction in a reproduced output of a servo signal in a magnetic recording medium
US8097351B2 (en) 2005-02-03 2012-01-17 Kabushiki Kaisha Toshiba Magnetic recording apparatus
US7773323B2 (en) 2005-02-16 2010-08-10 Tdk Corporation Magnetic recording medium, recording reproducing apparatus, and stamper
US7830635B2 (en) 2005-02-16 2010-11-09 Tdk Corporation Magnetic recording medium, recording/reproducing apparatus, and stamper
US7532423B2 (en) 2005-02-16 2009-05-12 Tdk Corporation Magnetic recording medium, recording/reproducing apparatus, and stamper
US7548388B2 (en) 2005-02-16 2009-06-16 Tdk Corporation Magnetic recording medium, recording/reproducing apparatus, and stamper
US7623311B2 (en) 2005-03-18 2009-11-24 Kabushiki Kaisha Toshiba Recording media, recording and reproducing apparatus, and method for recording and reproducing
JP2006344328A (ja) * 2005-06-10 2006-12-21 Toshiba Corp 磁気ディスク媒体およびレティクルならびに磁気記録再生装置
US7738213B2 (en) 2005-06-10 2010-06-15 Kabushiki Kaisha Toshiba Magnetic disk medium, reticle and magnetic recording and reproducing apparatus
US7746587B2 (en) 2006-03-06 2010-06-29 Kabushiki Kaisha Toshiba Magnetic recording apparatus and magnetic recording and reproducing apparatus
JP2007305268A (ja) * 2006-05-15 2007-11-22 Nsk Ltd 軸受ユニット
JP2008171491A (ja) * 2007-01-10 2008-07-24 Fuji Electric Device Technology Co Ltd 垂直記録ディスクリートトラックメディアおよびそのサーボパターン磁化方法
US7894152B2 (en) 2007-01-10 2011-02-22 Fuji Electric Device Technology Co., Ltd. Perpendicular recording discrete track medium and servo pattern magnetization method for same
US7817377B2 (en) 2007-02-19 2010-10-19 Kabushiki Kaisha Toshiba Original disk fabrication method, magnetic recording medium manufacturing method and magnetic recording medium
JP2008204532A (ja) * 2007-02-19 2008-09-04 Toshiba Corp 原盤の作製方法、磁気記録媒体の製造方法および磁気記録媒体
JP2007287322A (ja) * 2007-07-09 2007-11-01 Tdk Corp 情報記録媒体および記録再生装置
US7933088B2 (en) 2007-12-27 2011-04-26 Kabushiki Kaisha Toshiba Disk drive having a disk of discrete-track media type
US7848049B2 (en) 2008-07-23 2010-12-07 Toshiba Storage Device Corporation Magnetic disk apparatus and magnetic disk access control method
US7859779B2 (en) 2008-07-23 2010-12-28 Toshiba Storage Device Corporation Magnetic disk apparatus and magnetic disk access controlling method
US8159767B2 (en) 2008-12-10 2012-04-17 Kabushiki Kaisha Toshiba Repeatable runout evaluation method for a stamper
US8070968B2 (en) 2009-03-13 2011-12-06 Kabushiki Kaisha Toshiba Ultraviolet-curable resin material for pattern transfer and magnetic recording medium manufacturing method using the same
US8372575B2 (en) 2009-03-13 2013-02-12 Kabushiki Kaisha Toshiba Ultraviolet-curing resin material for pattern transfer and magnetic recording medium manufacturing method using the same
US8551685B2 (en) 2009-03-13 2013-10-08 Kabushiki Kaisha Toshiba Ultraviolet-curing resin material for pattern transfer and magnetic recording medium manufacturing method using the same
US8173029B2 (en) 2009-03-18 2012-05-08 Kabushiki Kaisha Toshiba Magnetic recording medium manufacturing method
JP2010225203A (ja) * 2009-03-19 2010-10-07 Fujitsu Ltd 磁気記録媒体および磁気再生装置

Similar Documents

Publication Publication Date Title
JP2004110896A (ja) 垂直磁気記録再生システム
US6999257B2 (en) Magnetic disk drive with structure for avoiding DC magnetic disturbance on a disk surface
EP0452876A2 (en) A longitudinal magnetic recording medium
US7215502B2 (en) Magnetic recording and reproducing apparatus with trapeziodal write pole tip to avoid overwriting adjacent tracks
JPH0997419A (ja) 磁気ディスク、磁気ディスクの製造方法、及び磁気記録装置
JP3172000B2 (ja) 磁気記録再生装置
US7324294B2 (en) Magnetic recording disk drive with patterned media and circuit for generating timing pulses from the pattern
JP3286291B2 (ja) 磁気記録媒体
US7158340B2 (en) Magnetic recording and reproducing apparatus and magnetic recording medium
JP2000306227A (ja) 磁気記録媒体
JP4517329B2 (ja) 垂直磁気記録媒体
US7317596B2 (en) Magnetic recording disk drive having read head with high cross-track resolution and disk with low bit-aspect-ratio
JPH08102154A (ja) 磁気ディスク装置
JP3495674B2 (ja) 磁気記録媒体およびその製造方法
JP4157311B2 (ja) 磁気記録媒体および磁気記録装置
US8665549B2 (en) Method for creating burst magnitude servo patterns with unipolar bits on a magnetic media of a magnetic data recording system
JP2003296911A (ja) 磁気記録媒体およびこれを用いた磁気記録再生装置
US7630156B2 (en) Magnetic recording medium, recording/reproducing apparatus, and stamper for manufacturing a magnetic recording medium
JP3934890B2 (ja) 磁気記録媒体の初期化方法
JP3281292B2 (ja) 磁気記録再生装置
US6999259B2 (en) Master disc and method of manufacturing the same
JP4364819B2 (ja) サーボ情報記録再生方式
US20030231428A1 (en) Magnetic head
JP2006228347A (ja) 磁気ディスク製造方法
JP2004171664A (ja) 磁気記録媒体および磁気記録再生システム

Legal Events

Date Code Title Description
A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20050728

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20050728

A977 Report on retrieval

Effective date: 20070323

Free format text: JAPANESE INTERMEDIATE CODE: A971007

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20070403

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20070529

A131 Notification of reasons for refusal

Effective date: 20070807

Free format text: JAPANESE INTERMEDIATE CODE: A131

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20071204