CN1372249A - 磁性复制方法及磁性复制装置 - Google Patents
磁性复制方法及磁性复制装置 Download PDFInfo
- Publication number
- CN1372249A CN1372249A CN02103261A CN02103261A CN1372249A CN 1372249 A CN1372249 A CN 1372249A CN 02103261 A CN02103261 A CN 02103261A CN 02103261 A CN02103261 A CN 02103261A CN 1372249 A CN1372249 A CN 1372249A
- Authority
- CN
- China
- Prior art keywords
- magnetic
- subordinate medium
- magnetic field
- medium
- subordinate
- 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
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
- G11B5/84—Processes or apparatus specially adapted for manufacturing 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
- G11B5/706—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 characterised by the composition of the magnetic material
-
- 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
- G11B5/739—Magnetic recording media substrates
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2508—Magnetic discs
- G11B2220/2516—Hard disks
Landscapes
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
Description
上下电磁铁的间隔(mm) | 电磁铁电流(A) | 复制磁场强度(kA/m) | 漏磁场强度(kA/m) | ΔC/N(dB) | |
实施例1 | 20 | 18 | 207 | 40 | 0(○) |
实施例2 | 25 | 21 | 207 | 64 | -0.8(○) |
实施例3 | 30 | 27 | 207 | 96 | -1.5(○) |
比较例1 | 40 | 40 | 207 | 119 | -6.1(×) |
Claims (12)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP200125675 | 2001-02-01 | ||
JP2001025675 | 2001-02-01 | ||
JP200147813 | 2001-02-23 | ||
JP2001047813A JP2002251724A (ja) | 2001-02-23 | 2001-02-23 | 磁気転写方法および磁気転写装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1372249A true CN1372249A (zh) | 2002-10-02 |
CN1259653C CN1259653C (zh) | 2006-06-14 |
Family
ID=26608784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB021032610A Expired - Fee Related CN1259653C (zh) | 2001-02-01 | 2002-02-01 | 磁性复制方法及磁性复制装置 |
Country Status (2)
Country | Link |
---|---|
KR (1) | KR20020064203A (zh) |
CN (1) | CN1259653C (zh) |
-
2002
- 2002-01-31 KR KR1020020005598A patent/KR20020064203A/ko not_active Application Discontinuation
- 2002-02-01 CN CNB021032610A patent/CN1259653C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR20020064203A (ko) | 2002-08-07 |
CN1259653C (zh) | 2006-06-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1241176C (zh) | 磁转录用主载体 | |
CN1235198C (zh) | 磁复制用主载体 | |
CN1219284C (zh) | 磁复制方法 | |
CN1226723C (zh) | 磁复制用主信息载体 | |
CN1253856C (zh) | 磁性复制方法与磁性复制装置 | |
CN1208761C (zh) | 磁复制方法 | |
CN1255782C (zh) | 磁复制方法 | |
US20050242453A1 (en) | Master carrier for magnetic transfer | |
CN1234113C (zh) | 磁复制用母载体 | |
CN1371092A (zh) | 磁复制用源载体 | |
CN1259653C (zh) | 磁性复制方法及磁性复制装置 | |
CN1219285C (zh) | 磁复制方法和磁复制装置 | |
CN1652210A (zh) | 磁复制用主载体 | |
US7667908B2 (en) | Magnetic transfer method for perpendicular magnetic recording medium, perpendicular magnetic recording medium, and magnetic recording apparatus | |
US7663827B2 (en) | Method of initializing perpendicular magnetic recording medium, perpendicular magnetic recording medium and magnetic recording apparatus | |
US7641822B2 (en) | Master information carrier for magnetic transfer and a method for producing the carrier | |
CN1245707C (zh) | 磁复制装置 | |
CN1256716C (zh) | 磁复录方法和磁复录装置 | |
JP2003173525A (ja) | 磁気転写装置 | |
JP2007012142A (ja) | 磁気転写方法及び装置 | |
JP2006202401A (ja) | 磁気転写用マスターディスク、磁気記録媒体、及び磁気記録装置 | |
CN1790489A (zh) | 磁性复制方法与磁性复制装置 | |
CN1385834A (zh) | 磁复制装置 | |
JP2006252609A (ja) | マスターディスクの吸着保持方法及び磁気転写装置 | |
JP2006216203A (ja) | 磁気転写用マスターディスク、磁気記録媒体、及び磁気記録装置 |
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 County, Japan 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. |
|
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |