CN1249675C - 磁记录介质 - Google Patents
磁记录介质 Download PDFInfo
- Publication number
- CN1249675C CN1249675C CNB031411878A CN03141187A CN1249675C CN 1249675 C CN1249675 C CN 1249675C CN B031411878 A CNB031411878 A CN B031411878A CN 03141187 A CN03141187 A CN 03141187A CN 1249675 C CN1249675 C CN 1249675C
- Authority
- CN
- China
- Prior art keywords
- magnetic recording
- lower floor
- alloy
- layer
- perpendicular magnetic
- 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.)
- Expired - Fee Related
Links
Images
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
-
- 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
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
Landscapes
- Magnetic Record Carriers (AREA)
Abstract
Description
Claims (16)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR59780/02 | 2002-10-01 | ||
KR10-2002-0059780A KR100464318B1 (ko) | 2002-10-01 | 2002-10-01 | 자기기록매체 |
KR59780/2002 | 2002-10-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1487506A CN1487506A (zh) | 2004-04-07 |
CN1249675C true CN1249675C (zh) | 2006-04-05 |
Family
ID=32064892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB031411878A Expired - Fee Related CN1249675C (zh) | 2002-10-01 | 2003-06-06 | 磁记录介质 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7229707B2 (zh) |
JP (1) | JP2004127502A (zh) |
KR (1) | KR100464318B1 (zh) |
CN (1) | CN1249675C (zh) |
SG (1) | SG113464A1 (zh) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006085742A (ja) * | 2004-09-14 | 2006-03-30 | Hitachi Global Storage Technologies Netherlands Bv | 垂直磁気記録媒体及びその製造方法 |
JP4327710B2 (ja) * | 2004-12-27 | 2009-09-09 | 株式会社東芝 | 垂直磁気記録媒体及び磁気記録再生装置 |
US7722967B2 (en) * | 2005-07-27 | 2010-05-25 | Hitachi Global Storage Technologies Netherlands B.V. | Recording medium comprising laminated underlayer structures |
US7833640B2 (en) * | 2005-08-19 | 2010-11-16 | Hitachi Global Storage Technologies Netherlands B.V. | Intermediate tri-layer structure for perpendicular recording media |
US20070292721A1 (en) * | 2006-04-25 | 2007-12-20 | Berger Andreas K | Perpendicular magnetic recording medium |
KR20080095086A (ko) * | 2007-04-23 | 2008-10-28 | 삼성전자주식회사 | 수직자기 기록 매체 및 그 제조 방법 |
KR101196732B1 (ko) * | 2008-02-01 | 2012-11-07 | 시게이트 테크놀로지 엘엘씨 | 수직자기 기록매체 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS621111A (ja) * | 1985-06-26 | 1987-01-07 | Hitachi Ltd | 磁気記録体 |
KR890005661Y1 (ko) | 1986-09-27 | 1989-08-25 | 삼성전자주식회사 | 창문형 에어콘 배수처리 장치 |
JP2524514B2 (ja) * | 1987-09-21 | 1996-08-14 | 日立マクセル株式会社 | 磁気記録媒体 |
US5605733A (en) * | 1992-01-22 | 1997-02-25 | Hitachi, Ltd. | Magnetic recording medium, method for its production, and system for its use |
JPH07169042A (ja) * | 1993-12-15 | 1995-07-04 | Tdk Corp | 磁気記録媒体及びその製造方法 |
JPH0830951A (ja) | 1994-07-18 | 1996-02-02 | Denki Kagaku Kogyo Kk | 垂直磁気記録媒体 |
US5731070A (en) * | 1995-12-20 | 1998-03-24 | Showa Denko Kabushiki Kaisha | Magnetic recording medium comprising a substrate, magnetic layer, and under layers including a silicon layer and a layer diffused with silicon |
KR970050274A (ko) * | 1995-12-29 | 1997-07-29 | 김종진 | 진공증착법을 이용한 코발트/파라디움 광자기 다층박막의 제조방법 |
US5895712A (en) * | 1996-05-21 | 1999-04-20 | Seagate Technology, Inc. | Magnetic recording medium with improved coercivity |
EP1134815A3 (en) * | 1997-09-29 | 2001-10-31 | Matsushita Electric Industrial Co., Ltd. | Magnetoresistance effect device, and method for producing the same |
US6221508B1 (en) * | 1997-12-09 | 2001-04-24 | Hitachi, Ltd. | Magnetic recording media |
JP2000276727A (ja) | 1999-03-24 | 2000-10-06 | Showa Denko Kk | 磁気記録媒体 |
US6475611B1 (en) * | 1999-12-14 | 2002-11-05 | Seagate Technology Llc | Si-containing seedlayer design for multilayer media |
JP2001283428A (ja) | 2000-03-30 | 2001-10-12 | Toshiba Corp | 垂直磁気記録媒体及び垂直磁気記録再生装置 |
JP2002197636A (ja) | 2000-10-19 | 2002-07-12 | Univ Waseda | 磁気記録媒体及びその製造方法 |
WO2002054390A1 (fr) * | 2000-12-28 | 2002-07-11 | Hitachi Maxell, Ltd. | Support d'enregistrement magnetique et son procede de fabrication, dispositif de stockage magnetique |
JP3993786B2 (ja) * | 2001-06-29 | 2007-10-17 | 富士通株式会社 | 磁気記録媒体 |
-
2002
- 2002-10-01 KR KR10-2002-0059780A patent/KR100464318B1/ko not_active IP Right Cessation
-
2003
- 2003-05-19 SG SG200302775A patent/SG113464A1/en unknown
- 2003-05-27 US US10/444,962 patent/US7229707B2/en not_active Expired - Lifetime
- 2003-06-06 CN CNB031411878A patent/CN1249675C/zh not_active Expired - Fee Related
- 2003-10-01 JP JP2003342759A patent/JP2004127502A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
US20040072031A1 (en) | 2004-04-15 |
SG113464A1 (en) | 2005-08-29 |
KR100464318B1 (ko) | 2005-01-03 |
CN1487506A (zh) | 2004-04-07 |
US7229707B2 (en) | 2007-06-12 |
KR20040029495A (ko) | 2004-04-08 |
JP2004127502A (ja) | 2004-04-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: SAMSUNG ELECTRONICS CO., LTD; INFORMATION AND COM Free format text: FORMER OWNER: SAMSUNG ELECTRONICS CO., LTD Effective date: 20080125 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20080125 Address after: Gyeonggi Do, South Korea Co-patentee after: Institute Information Technology Assessment Patentee after: Samsung Electronics Co., Ltd. Address before: Gyeonggi Do, South Korea Patentee before: Samsung Electronics Co., Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060405 Termination date: 20180606 |
|
CF01 | Termination of patent right due to non-payment of annual fee |