CN109036474A - 磁记录介质和磁存储装置 - Google Patents
磁记录介质和磁存储装置 Download PDFInfo
- Publication number
- CN109036474A CN109036474A CN201810521202.9A CN201810521202A CN109036474A CN 109036474 A CN109036474 A CN 109036474A CN 201810521202 A CN201810521202 A CN 201810521202A CN 109036474 A CN109036474 A CN 109036474A
- Authority
- CN
- China
- Prior art keywords
- magnetic
- magnetic recording
- recording media
- particle diameter
- diameter control
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
- G11B5/7369—Two or more non-magnetic underlayers, e.g. seed layers or barrier layers
- G11B5/737—Physical structure of underlayer, e.g. texture
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
- G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
- G11B5/667—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers including a soft magnetic layer
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
- G11B5/4866—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives the arm comprising an optical waveguide, e.g. for thermally-assisted recording
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
- G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
- G11B5/653—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing Fe or Ni
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B2005/0002—Special dispositions or recording techniques
- G11B2005/0005—Arrangements, methods or circuits
- G11B2005/0021—Thermally assisted recording using an auxiliary energy source for heating the recording layer locally to assist the magnetization reversal
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/60—Fluid-dynamic spacing of heads from record-carriers
- G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
- G11B5/6088—Optical waveguide in or on flying head
Landscapes
- Magnetic Record Carriers (AREA)
Abstract
Description
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017113605A JP6803045B2 (ja) | 2017-06-08 | 2017-06-08 | 磁気記録媒体および磁気記憶装置 |
JP2017-113605 | 2017-06-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN109036474A true CN109036474A (zh) | 2018-12-18 |
CN109036474B CN109036474B (zh) | 2020-01-03 |
Family
ID=64563617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810521202.9A Active CN109036474B (zh) | 2017-06-08 | 2018-05-28 | 磁记录介质和磁存储装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US10283154B2 (zh) |
JP (1) | JP6803045B2 (zh) |
CN (1) | CN109036474B (zh) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1395726A (zh) * | 2000-01-13 | 2003-02-05 | 日立麦克赛尔株式会社 | 磁记录介质,磁记录介质的制造方法,以及磁记录装置 |
CN1797551A (zh) * | 2004-12-27 | 2006-07-05 | 富士通株式会社 | 磁记录介质和磁存储器 |
CN102473420A (zh) * | 2009-08-20 | 2012-05-23 | 昭和电工株式会社 | 热辅助磁记录介质和磁存储装置 |
CN103534757A (zh) * | 2011-05-17 | 2014-01-22 | 昭和电工株式会社 | 磁记录介质及其制造方法以及磁记录再生装置 |
CN104575530A (zh) * | 2013-10-28 | 2015-04-29 | 昭和电工株式会社 | 磁记录介质及磁存储装置 |
CN104700849A (zh) * | 2013-12-06 | 2015-06-10 | 株式会社东芝 | 垂直磁记录介质及磁记录再现装置 |
CN104795079A (zh) * | 2014-01-17 | 2015-07-22 | 株式会社东芝 | 垂直磁记录介质、其制造方法及磁记录再现装置 |
CN105321536A (zh) * | 2014-07-30 | 2016-02-10 | 株式会社东芝 | 磁记录介质及磁记录再现装置 |
CN106611605A (zh) * | 2015-10-22 | 2017-05-03 | 株式会社东芝 | 磁记录介质和磁记录再生装置 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11296823A (ja) * | 1998-04-09 | 1999-10-29 | Nec Corp | 磁気抵抗効果素子およびその製造方法、ならびに磁気抵抗効果センサ,磁気記録システム |
JP3010156B2 (ja) | 1998-06-10 | 2000-02-14 | 秋田県 | 規則合金薄膜からなる情報記録媒体の製造方法 |
JP2000215414A (ja) * | 1999-01-25 | 2000-08-04 | Hitachi Ltd | 磁気センサ― |
JP4416408B2 (ja) * | 2002-08-26 | 2010-02-17 | 株式会社日立グローバルストレージテクノロジーズ | 垂直磁気記録媒体 |
JP4642705B2 (ja) | 2005-06-10 | 2011-03-02 | キヤノン株式会社 | 磁気記録媒体の製造方法 |
US7901737B2 (en) | 2005-06-10 | 2011-03-08 | Canon Kabushiki Kaisha | Process for producing magnetic recording medium |
WO2010109822A1 (ja) * | 2009-03-23 | 2010-09-30 | 昭和電工株式会社 | 熱アシスト磁気記録媒体及び磁気記録再生装置 |
US8445979B2 (en) * | 2009-09-11 | 2013-05-21 | Samsung Electronics Co., Ltd. | Magnetic memory devices including magnetic layers separated by tunnel barriers |
JP5796883B2 (ja) | 2011-04-14 | 2015-10-21 | 昭和電工株式会社 | 熱アシスト磁気記録媒体及び磁気記録再生装置 |
US9076476B2 (en) * | 2011-09-23 | 2015-07-07 | Carnegie Mellon University | Thin film media structure for perpendicular magnetic recording and storage devices made therewith |
JP5665785B2 (ja) * | 2012-03-22 | 2015-02-04 | 株式会社東芝 | 垂直磁気記録媒体、及び磁気記録再生装置 |
US20140272470A1 (en) * | 2013-03-15 | 2014-09-18 | Seagate Technology Llc | Energy Assisted Segregation Material |
US10276192B2 (en) * | 2013-07-11 | 2019-04-30 | Western Digital Technologies, Inc. | Perpendicular magnetic recording medium |
JP6317896B2 (ja) * | 2013-07-26 | 2018-04-25 | 昭和電工株式会社 | 磁気記録媒体および磁気記憶装置 |
US20160232946A1 (en) * | 2015-02-09 | 2016-08-11 | Seagate Technology Llc | Self-assembled monolayer coating for disc drive manufacture |
US9824710B1 (en) * | 2017-05-01 | 2017-11-21 | Western Digital Technologies, Inc. | Heat-assisted magnetic recording (HAMR) medium with thermal barrier layer in multilayered heat-sink structure |
US10109309B1 (en) * | 2017-09-01 | 2018-10-23 | Western Digital Technologies, Inc. | Heat-assisted magnetic recording (HAMR) medium with heat-sink layer having anisotropic thermal conductivity |
-
2017
- 2017-06-08 JP JP2017113605A patent/JP6803045B2/ja active Active
-
2018
- 2018-05-15 US US15/979,965 patent/US10283154B2/en active Active
- 2018-05-28 CN CN201810521202.9A patent/CN109036474B/zh active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1395726A (zh) * | 2000-01-13 | 2003-02-05 | 日立麦克赛尔株式会社 | 磁记录介质,磁记录介质的制造方法,以及磁记录装置 |
CN1797551A (zh) * | 2004-12-27 | 2006-07-05 | 富士通株式会社 | 磁记录介质和磁存储器 |
CN102473420A (zh) * | 2009-08-20 | 2012-05-23 | 昭和电工株式会社 | 热辅助磁记录介质和磁存储装置 |
CN103534757A (zh) * | 2011-05-17 | 2014-01-22 | 昭和电工株式会社 | 磁记录介质及其制造方法以及磁记录再生装置 |
CN104575530A (zh) * | 2013-10-28 | 2015-04-29 | 昭和电工株式会社 | 磁记录介质及磁存储装置 |
CN104700849A (zh) * | 2013-12-06 | 2015-06-10 | 株式会社东芝 | 垂直磁记录介质及磁记录再现装置 |
CN104795079A (zh) * | 2014-01-17 | 2015-07-22 | 株式会社东芝 | 垂直磁记录介质、其制造方法及磁记录再现装置 |
CN105321536A (zh) * | 2014-07-30 | 2016-02-10 | 株式会社东芝 | 磁记录介质及磁记录再现装置 |
CN106611605A (zh) * | 2015-10-22 | 2017-05-03 | 株式会社东芝 | 磁记录介质和磁记录再生装置 |
Also Published As
Publication number | Publication date |
---|---|
JP2018206457A (ja) | 2018-12-27 |
CN109036474B (zh) | 2020-01-03 |
US20180358041A1 (en) | 2018-12-13 |
US10283154B2 (en) | 2019-05-07 |
JP6803045B2 (ja) | 2020-12-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7311983B2 (en) | Perpendicular magnetic recording medium and a method for manufacturing the same | |
JP6145332B2 (ja) | 磁気記録媒体、磁気記憶装置 | |
US7781079B2 (en) | Perpendicular magnetic recording medium, its manufacturing method, and a magnetic storage apparatus | |
US8771849B2 (en) | Perpendicular magnetic recording medium and magnetic recording/reproducing apparatus using the same | |
CN103680524B (zh) | 磁记录介质和磁记录再生装置 | |
CN1783228B (zh) | 垂直磁性记录介质 | |
US20110235479A1 (en) | Thermally assisted magnetic recording medium and magnetic recording storage | |
JP6014385B2 (ja) | 磁気記録媒体及び磁気記録再生装置 | |
CN108346437B (zh) | 磁记录介质和磁存储装置 | |
JP5506604B2 (ja) | 熱アシスト磁気記録媒体及び磁気記憶装置 | |
JP2003036525A (ja) | 垂直磁気記録媒体及びその製造方法 | |
JP5938224B2 (ja) | 磁気記録媒体及び磁気記録再生装置 | |
CN108399925B (zh) | 磁记录介质和磁存储装置 | |
CN108573715B (zh) | 辅助磁记录介质和磁存储装置 | |
CN104303232B (zh) | 热辅助磁记录介质和磁记录再生装置 | |
US20180182421A1 (en) | Magnetic recording medium and magnetic storage apparatus | |
CN108305645B (zh) | 磁记录介质和磁存储装置 | |
US9824711B1 (en) | Soft underlayer for heat assisted magnetic recording media | |
JP5858634B2 (ja) | 熱アシスト磁気記録媒体及び磁気記憶装置 | |
CN109036474A (zh) | 磁记录介质和磁存储装置 | |
JP2005243093A (ja) | 垂直磁気記録媒体およびその製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CP01 | Change in the name or title of a patent holder |
Address after: Tokyo, Japan Patentee after: Lishennoco Co.,Ltd. Patentee after: TOHOKU University Address before: Tokyo, Japan Patentee before: Showa electrical materials Co.,Ltd. Patentee before: TOHOKU University |
|
CP01 | Change in the name or title of a patent holder | ||
TR01 | Transfer of patent right |
Effective date of registration: 20230719 Address after: Tokyo, Japan Patentee after: Showa electrical materials Co.,Ltd. Patentee after: TOHOKU University Address before: Tokyo, Japan Patentee before: SHOWA DENKO Kabushiki Kaisha Patentee before: TOHOKU University |
|
TR01 | Transfer of patent right |