CN1277251C - 磁记录介质 - Google Patents
磁记录介质 Download PDFInfo
- Publication number
- CN1277251C CN1277251C CNB031034233A CN03103423A CN1277251C CN 1277251 C CN1277251 C CN 1277251C CN B031034233 A CNB031034233 A CN B031034233A CN 03103423 A CN03103423 A CN 03103423A CN 1277251 C CN1277251 C CN 1277251C
- Authority
- CN
- China
- Prior art keywords
- magnetic
- magnetic recording
- recording media
- kuv
- vsm
- 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
- G11B5/86—Re-recording, i.e. transcribing information from one magnetisable record carrier on to one or more similar or dissimilar record carriers
-
- 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
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base 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
- G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
- G11B5/82—Disk carriers
- G11B5/825—Disk carriers flexible discs
-
- 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
- G11B5/86—Re-recording, i.e. transcribing information from one magnetisable record carrier on to one or more similar or dissimilar record carriers
- G11B5/865—Re-recording, i.e. transcribing information from one magnetisable record carrier on to one or more similar or dissimilar record carriers by contact "printing"
Abstract
Description
Hc(τ)/Hc(VSM) | ||||||||||
KuV/kT | 10 | 1 | 1.E-01 | 1.E-02 | 1.E-03 | 1.E-04 | 1.E-05 | 1.E-06 | 1.E-07 | 1.E-08 |
75 | 1.00 | 1.06 | 1.13 | 1.20 | 1.28 | 1.36 | 1.45 | 1.56 | 1.67 | 1.82 |
100 | 1.00 | 1.05 | 1.10 | 1.15 | 1.21 | 1.27 | 1.33 | 1.41 | 1.50 | 1.60 |
150 | 1.00 | 1.03 | 1.07 | 1.10 | 1.14 | 1.19 | 1.23 | 1.28 | 1.34 | 1.42 |
200 | 1.00 | 1.03 | 1.05 | 1.08 | 1.11 | 1.15 | 1.18 | 1.23 | 1.27 | 1.33 |
板径nm | 板厚nm | 体积cm3 | HcKA/m | KuJ/m3 | KuV/Kt | Ranm | ΦmT·μm | S/N1dB | S/N2DB | |
实施例1 | 30 | 9 | 5.3×10-18 | 198 | 6.8×104 | 86 | 2.5 | 2.5×10-2 | 15 | 25 |
实施例2 | 26 | 8 | 3.5×10-18 | 200 | 7.5×104 | 64 | 2.0 | 2×10-2 | 14 | 27 |
实施例3 | 30 | 9 | 5.3×10-18 | 198 | 6.8×104 | 86 | 2.8 | 2.4×10-2 | 14 | 24 |
实施例4 | 30 | 9 | 5.3×10-18 | 198 | 6.8×104 | 86 | 2.7 | 1.2×10-2 | 16 | 25 |
实施例5 | 30 | 9 | 5.3×10-18 | 198 | 6.8×104 | 86 | 2.0 | 4.5×10-2 | 15 | 24 |
实施例6 | 30 | 9 | 5.3×10-18 | 198 | 6.8×104 | 86 | 3.2 | 2.5×10-2 | 13 | 20 |
实施例7 | 30 | 9 | 5.3×10-18 | 198 | 6.8×104 | 86 | 1.8 | 5.3×10-2 | 14 | 21 |
实施例8 | 42 | 10 | 1.1×10-18 | 210 | 3.5×104 | 93 | 2.1 | 2.5×10-2 | 14 | 20 |
实施例9 | 35 | 10 | 8.0×10-18 | 276 | 0.9×104 | 17 | 2.0 | 2.5×10-2 | 9 | 20 |
比较例1 | 30 | 9 | 5.3×10-18 | 142 | 6.0×104 | 76 | 2.4 | 2.6×10-2 | 14 | 17 |
比较例2 | 35 | 10 | 8.0×10-18 | 201 | 6.2×104 | 119 | 2.8 | 2.5×10-2 | 20 | 23 |
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002021355 | 2002-01-30 | ||
JP2002021355 | 2002-01-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1435822A CN1435822A (zh) | 2003-08-13 |
CN1277251C true CN1277251C (zh) | 2006-09-27 |
Family
ID=19192181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB031034233A Expired - Fee Related CN1277251C (zh) | 2002-01-30 | 2003-01-28 | 磁记录介质 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6777073B2 (zh) |
EP (1) | EP1333429A1 (zh) |
KR (1) | KR20030065352A (zh) |
CN (1) | CN1277251C (zh) |
MY (1) | MY125735A (zh) |
SG (1) | SG104994A1 (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004079060A (ja) * | 2002-08-14 | 2004-03-11 | Fuji Photo Film Co Ltd | 磁気転写用マスター担体 |
JP2005129115A (ja) * | 2003-10-22 | 2005-05-19 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
JP5770772B2 (ja) | 2013-03-26 | 2015-08-26 | 富士フイルム株式会社 | 六方晶フェライト磁性粒子およびその製造方法、ならびに磁気記録用磁性粉および磁気記録媒体 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4044793A (en) * | 1975-08-25 | 1977-08-30 | Shiley Laboratories, Inc. | Relief valve |
JPS5671822A (en) * | 1979-11-15 | 1981-06-15 | Tdk Corp | Magnetic recording medium |
US4446886A (en) * | 1982-03-08 | 1984-05-08 | Taylor Wesley L | Safety relief valve soft seat |
US4750709A (en) * | 1986-05-16 | 1988-06-14 | Nupro Company | Diaphragm valve |
JPS63183623A (ja) | 1987-01-23 | 1988-07-29 | Sony Corp | 可撓性デイスクへの接触磁界転写方法 |
JP3006913B2 (ja) * | 1991-05-09 | 2000-02-07 | 清原 まさ子 | 流体制御器 |
JPH086828B2 (ja) * | 1991-08-09 | 1996-01-29 | 株式会社ベンカン | メタルダイヤフラム弁 |
US5335691A (en) * | 1992-05-26 | 1994-08-09 | Nupro Company | High pressure diaphragm valve |
TW342495B (en) * | 1996-07-22 | 1998-10-11 | Matsushita Electric Ind Co Ltd | Master information carrier, method of producing the same, and method for recording master information signal on magnetic recording medium |
US5981054A (en) * | 1996-07-22 | 1999-11-09 | Kabushiki Kaisha Toshiba | Magnetic recording medium and method for manufacturing the same |
DE69834761T2 (de) * | 1997-03-14 | 2006-10-19 | Fuji Photo Film Co., Ltd., Minami-Ashigara | Magnetisches Aufzeichnungsmedium |
JP3429972B2 (ja) * | 1997-03-28 | 2003-07-28 | 株式会社日立製作所 | 磁気記録媒体およびそれを用いた磁気記憶装置 |
JP2001014467A (ja) | 1999-07-01 | 2001-01-19 | Sumitomo Metal Ind Ltd | ディジタル映像処理方法及びディジタル映像処理装置 |
US6680133B2 (en) * | 1999-12-08 | 2004-01-20 | Showa Denko Kabushiki Kaisha | Magnetic recording medium and sputtering target |
JP2001243624A (ja) * | 2000-02-28 | 2001-09-07 | Fuji Photo Film Co Ltd | 磁気転写方法 |
-
2003
- 2003-01-28 KR KR10-2003-0005396A patent/KR20030065352A/ko not_active Application Discontinuation
- 2003-01-28 CN CNB031034233A patent/CN1277251C/zh not_active Expired - Fee Related
- 2003-01-29 MY MYPI20030292A patent/MY125735A/en unknown
- 2003-01-30 EP EP03002082A patent/EP1333429A1/en not_active Withdrawn
- 2003-01-30 SG SG200300292A patent/SG104994A1/en unknown
- 2003-01-30 US US10/354,001 patent/US6777073B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1333429A1 (en) | 2003-08-06 |
CN1435822A (zh) | 2003-08-13 |
US6777073B2 (en) | 2004-08-17 |
SG104994A1 (en) | 2004-07-30 |
MY125735A (en) | 2006-08-30 |
KR20030065352A (ko) | 2003-08-06 |
US20030143432A1 (en) | 2003-07-31 |
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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: FUJI PHOTO FILM CO., LTD. Free format text: FORMER OWNER: FUJIFILM HOLDINGS CORP. Effective date: 20070803 |
|
C41 | Transfer of patent application or patent right or utility model | ||
C56 | Change in the name or address of the patentee |
Owner name: FUJIFILM HOLDINGS CORP. Free format text: FORMER NAME OR ADDRESS: FUJI PHOTO FILM CO., LTD. |
|
CP03 | Change of name, title or address |
Address after: Tokyo, Japan Patentee after: Fujifilm Corp. Address before: Kanagawa Patentee before: FUJIFILM Corp. |
|
TR01 | Transfer of patent right |
Effective date of registration: 20070803 Address after: Tokyo, Japan Patentee after: FUJIFILM Corp. Address before: Tokyo, Japan Patentee before: Fujifilm Corp. |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060927 Termination date: 20110128 |