MY141424A - Magnetic recording medium, method for producing thereof, and magnetic recording and reproducing apparatus - Google Patents

Magnetic recording medium, method for producing thereof, and magnetic recording and reproducing apparatus

Info

Publication number
MY141424A
MY141424A MYPI20041266A MY141424A MY 141424 A MY141424 A MY 141424A MY PI20041266 A MYPI20041266 A MY PI20041266A MY 141424 A MY141424 A MY 141424A
Authority
MY
Malaysia
Prior art keywords
magnetic recording
layer
magnetic
recording medium
producing
Prior art date
Application number
Inventor
Akira Sakawaki
Kenji Shimizu
Kazuo Kobayashi
Hiroshi Sakai
Soichi Oikawa
Takeshi Iwasaki
Tomoyuki Maeda
Futoshi Nakamura
Original Assignee
Showa Denko Kk
Toshiba Kk
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 Showa Denko Kk, Toshiba Kk filed Critical Showa Denko Kk
Publication of MY141424A publication Critical patent/MY141424A/en

Links

Abstract

A MAGNETIC RECORDING MEDIUM WHICH IS PROVIDED ON A NONMAGNETIC SUBSTRATE 1 WITH AT LEAST AN ORIENTATION-CONTROLLING LAYER 3 FOR CONTROLLING THE ORIENTATION OF A LAYER FORMED DIRECTLY THEREON, A PERPENDICULARLY MAGNETIC LAYER 4 HAVING AN EASILY MAGNETIZING AXIS ORIENTED MAINLY PERPENDICULARLY RELATIVE TO THE NONMAGNETIC SUBSTRATE 1, AND A PROTECTIVE LAYER 5 AND CHARACTERIZED IN THAT THE PERPENDICULARLY MAGNETIC LAYER 4 INCLUDES TWO OR MORE MAGNETIC LAYERS, THAT AT LEAST ONE OF THE MAGNETIC LAYERS IS A LAYER 4a HAVING Co AS A MAIN COMPONENT AND CONTAINING Pt AS WELL AND CONTAINING AN OXIDE AND THAT AT LEAST ANOTHER OF THE MAGNETIC LAYERS IS A LAYER 4b HAVING Co AS A MAIN COMPONENT AND CONTAINING Cr AS WELL AND CONTAINING NO OXIDE.
MYPI20041266 2003-04-07 2004-04-07 Magnetic recording medium, method for producing thereof, and magnetic recording and reproducing apparatus MY141424A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003103454A JP4185391B2 (en) 2003-04-07 2003-04-07 Magnetic recording medium, manufacturing method thereof, and magnetic recording / reproducing apparatus

Publications (1)

Publication Number Publication Date
MY141424A true MY141424A (en) 2010-04-30

Family

ID=33466549

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI20041266 MY141424A (en) 2003-04-07 2004-04-07 Magnetic recording medium, method for producing thereof, and magnetic recording and reproducing apparatus

Country Status (4)

Country Link
JP (1) JP4185391B2 (en)
CN (1) CN1802697B (en)
MY (1) MY141424A (en)
TW (1) TW200501083A (en)

Families Citing this family (56)

* Cited by examiner, † Cited by third party
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WO2005088609A1 (en) * 2004-03-15 2005-09-22 Fuji Electric Device Technology Co., Ltd. Vertical magnetic recording medium, process for producing the same and magnetic recording apparatus
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JP2006309919A (en) * 2005-03-30 2006-11-09 Fujitsu Ltd Perpendicular magnetic recording medium, manufacturing method thereof, and magnetic storage device
JP2006286106A (en) * 2005-03-31 2006-10-19 Fujitsu Ltd Vertical magnetic recording medium and magnetic storage apparatus
US20090226763A1 (en) * 2005-06-13 2009-09-10 Showa Denko K.K. Perpendicular magnetic recording medium, production process thereof, and magnetic recording and reproducing apparatus
JP2007184066A (en) 2006-01-10 2007-07-19 Hitachi Global Storage Technologies Netherlands Bv Perpendicular magnetic recording medium and magnetic storage device using the same
US8213118B2 (en) 2006-02-14 2012-07-03 Showa Denko K.K. Magnetic recording medium, method for production thereof and magnetic recording and reproducing device
JP2007257740A (en) * 2006-03-23 2007-10-04 Hitachi Global Storage Technologies Netherlands Bv Magnetic storage device
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JP2007273057A (en) * 2006-03-31 2007-10-18 Fujitsu Ltd Perpendicular magnetic recording medium and magnetic storage device
US20090311557A1 (en) * 2006-03-31 2009-12-17 Takahiro Onoue Perpendicular magnetic recording disk and method of manufacturing the same
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US20090117408A1 (en) * 2006-03-31 2009-05-07 Hoya Corporation Perpendicular magnetic recording disk and method of manufacturing the same
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JP4764308B2 (en) * 2006-10-20 2011-08-31 株式会社東芝 Perpendicular magnetic recording medium and perpendicular magnetic recording / reproducing apparatus
JP2008123626A (en) 2006-11-14 2008-05-29 Hitachi Global Storage Technologies Netherlands Bv Perpendicular magnetic recording medium and magnetic storage apparatus using the same
US7572526B2 (en) * 2007-02-18 2009-08-11 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular magnetic recording medium with exchange-spring structure having multiple exchange-spring layers and recording system for the medium
WO2008133060A1 (en) * 2007-04-13 2008-11-06 Fuji Electric Device Technology Co., Ltd. Perpendicular magnetic recording medium
JP5412729B2 (en) 2007-04-19 2014-02-12 富士電機株式会社 Perpendicular magnetic recording medium
US8021769B2 (en) 2007-05-22 2011-09-20 Hitachi Global Storage Technologies Netherlands B.V. Patterned perpendicular magnetic recording medium with exchange coupled recording layer structure and magnetic recording system using the medium
TW200929186A (en) * 2007-07-26 2009-07-01 Showa Denko Kk Magnetic recording medium and process for producing same, and magnetic recording reproducing apparatus
JP5184843B2 (en) * 2007-08-21 2013-04-17 エイチジーエスティーネザーランドビーブイ Perpendicular magnetic recording medium and magnetic storage device
JP5103097B2 (en) * 2007-08-30 2012-12-19 エイチジーエスティーネザーランドビーブイ Perpendicular magnetic recording medium and magnetic recording / reproducing apparatus using the same
JP5345543B2 (en) 2007-10-03 2013-11-20 昭和電工株式会社 Method for manufacturing perpendicular magnetic recording medium and magnetic recording / reproducing apparatus
JP2009087500A (en) 2007-10-03 2009-04-23 Showa Denko Kk Perpendicular magnetic recording medium and magnetic recording and reproducing device
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JP5010429B2 (en) * 2007-10-19 2012-08-29 株式会社東芝 Magnetic material, antenna device, and method of manufacturing magnetic material
JP2009187597A (en) * 2008-02-01 2009-08-20 Fujitsu Ltd Magnetic recording medium and magnetic recording system
JP2011034603A (en) * 2008-03-31 2011-02-17 Hoya Corp Vertical magnetic recording medium
JP5243835B2 (en) 2008-04-08 2013-07-24 エイチジーエスティーネザーランドビーブイ Perpendicular magnetic recording medium and magnetic storage device using the same
JP5088629B2 (en) * 2008-08-22 2012-12-05 昭和電工株式会社 Magnetic recording medium and magnetic recording / reproducing apparatus
US8871368B2 (en) 2008-09-16 2014-10-28 Wd Media (Singapore) Pte. Ltd. Perpendicular magnetic recording medium and process for manufacture thereof
JP2010097680A (en) * 2008-09-16 2010-04-30 Hoya Corp Vertical magnetic recording medium
WO2010064724A1 (en) * 2008-12-05 2010-06-10 Hoya株式会社 Magnetic disk and method for manufacturing same
JP5250838B2 (en) 2009-01-27 2013-07-31 昭和電工株式会社 Magnetic recording medium manufacturing method, magnetic recording medium, and magnetic recording / reproducing apparatus
JP2010176782A (en) 2009-02-02 2010-08-12 Showa Denko Kk Method for manufacturing magnetic recording medium and magnetic recording and playback device
JP5377015B2 (en) 2009-03-19 2013-12-25 昭和電工株式会社 Magnetic recording medium
JP5244679B2 (en) * 2009-04-09 2013-07-24 昭和電工株式会社 Method for manufacturing magnetic recording medium
TWI400698B (en) * 2009-09-11 2013-07-01 Univ Nat Taiwan Method for ordering an alloy and method for making a perpendicular magnetic recording medium therefrom
JP2011076693A (en) * 2009-10-01 2011-04-14 Wd Media Singapore Pte Ltd Perpendicular magnetic recording medium and method for manufacturing the same
JP5670638B2 (en) * 2010-01-26 2015-02-18 昭和電工株式会社 Thermally assisted magnetic recording medium and magnetic recording / reproducing apparatus
JP2011216141A (en) * 2010-03-31 2011-10-27 Wd Media Singapore Pte Ltd Method for manufacturing perpendicular magnetic disk
JP5638281B2 (en) * 2010-04-30 2014-12-10 ダブリュディ・メディア・シンガポール・プライベートリミテッド Perpendicular magnetic disk
JP5536540B2 (en) * 2010-05-26 2014-07-02 昭和電工株式会社 Magnetic recording medium and magnetic recording / reproducing apparatus
JP2011040153A (en) * 2010-09-15 2011-02-24 Wd Media Singapore Pte Ltd Perpendicular magnetic recording disk, and manufacturing method of the same
JP5775720B2 (en) 2011-03-30 2015-09-09 昭和電工株式会社 Magnetic recording medium manufacturing method and magnetic recording / reproducing apparatus
US9028985B2 (en) * 2011-03-31 2015-05-12 WD Media, LLC Recording media with multiple exchange coupled magnetic layers
JP5782819B2 (en) * 2011-05-12 2015-09-24 富士電機株式会社 Perpendicular magnetic recording medium
WO2012157600A1 (en) 2011-05-17 2012-11-22 昭和電工株式会社 Magnetic recording medium, manufacturing method thereof, and magnetic record/play device
JP2013246856A (en) 2012-05-28 2013-12-09 Showa Denko Kk Magnetic recording medium and magnetic storage apparatus
JP2014010851A (en) 2012-06-28 2014-01-20 Showa Denko Kk Magnetic recording medium, and magnetic storage device
JP6265529B2 (en) 2013-01-23 2018-01-24 昭和電工株式会社 Magnetic recording medium manufacturing method, magnetic recording medium, and magnetic recording / reproducing apparatus
JP6144570B2 (en) 2013-08-05 2017-06-07 昭和電工株式会社 Magnetic recording medium manufacturing method, magnetic recording medium, and magnetic recording / reproducing apparatus
JP6427396B2 (en) * 2014-11-19 2018-11-21 株式会社東芝 Magnetoresistance element and magnetic memory
JP2022119230A (en) 2021-02-04 2022-08-17 昭和電工株式会社 Magnetic recording medium, magnetic recording/reproducing device, and method for manufacturing magnetic recording medium

Also Published As

Publication number Publication date
CN1802697A (en) 2006-07-12
CN1802697B (en) 2011-12-14
JP2004310910A (en) 2004-11-04
TW200501083A (en) 2005-01-01
TWI334594B (en) 2010-12-11
JP4185391B2 (en) 2008-11-26

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