JPS57138061A - Magnetic transferring system - Google Patents

Magnetic transferring system

Info

Publication number
JPS57138061A
JPS57138061A JP56022606A JP2260681A JPS57138061A JP S57138061 A JPS57138061 A JP S57138061A JP 56022606 A JP56022606 A JP 56022606A JP 2260681 A JP2260681 A JP 2260681A JP S57138061 A JPS57138061 A JP S57138061A
Authority
JP
Japan
Prior art keywords
master
magnetic
magnetization
slave
bias
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
Application number
JP56022606A
Other languages
Japanese (ja)
Other versions
JPS6364816B2 (en
Inventor
Masaru Odagiri
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP56022606A priority Critical patent/JPS57138061A/en
Publication of JPS57138061A publication Critical patent/JPS57138061A/en
Publication of JPS6364816B2 publication Critical patent/JPS6364816B2/ja
Granted legal-status Critical Current

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
    • G11B5/86—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"

Landscapes

  • Recording Or Reproducing By Magnetic Means (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To achieve a magnetic transferring system with high transferring efficiency, even with comparatively small coercive force of a master, by using a magnetic recording medium having magnetic anisotropy toward tilt direction. CONSTITUTION:In an x-z plane including x axis of magnetic recording direction and z axis vertical to a master 1 and a slave 4, a master magnetic layer 3 is formed that the intensity of residual magnetization toward B with an angle of -45 deg. to the x axis is greater than the intensity of residual magnetization toward A with an angle of +45 deg. by >=25%, and a slave magnetic layer 6 is formed that the intensity of residual magnetization toward A is greater than that toward B by 25%. A bias magnetic field is applied to the magnetization difficult direction (direction A) of the master 1 by bias magnetization applying heads 7 and 8. Thus, even if the coercive force of the master is comparatively small, the bias magnetic field which is hardly demagnetized and sufficient can be applied, and since the bias magnetic field direction of the slave 4 is magnetization easy direction, the efficiency of transfer can be made increased.
JP56022606A 1981-02-17 1981-02-17 Magnetic transferring system Granted JPS57138061A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56022606A JPS57138061A (en) 1981-02-17 1981-02-17 Magnetic transferring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56022606A JPS57138061A (en) 1981-02-17 1981-02-17 Magnetic transferring system

Publications (2)

Publication Number Publication Date
JPS57138061A true JPS57138061A (en) 1982-08-26
JPS6364816B2 JPS6364816B2 (en) 1988-12-13

Family

ID=12087495

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56022606A Granted JPS57138061A (en) 1981-02-17 1981-02-17 Magnetic transferring system

Country Status (1)

Country Link
JP (1) JPS57138061A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63182316A (en) * 1987-01-26 1988-07-27 Asahi Chem Ind Co Ltd Optical disc base
US5247397A (en) * 1990-10-26 1993-09-21 Sony Corporation Method for magnetically recording digital video signals with specified ranges of the easy axis and the bias magnetic field
EP0915456A4 (en) * 1996-07-22 2002-06-26 Matsushita Electric Industrial Co Ltd MASTER INFORMATION MEDIUM, METHOD FOR PRODUCING SAID MEDIUM, AND METHOD AND APPARATUS FOR RECORDING A MASTER INFORMATION SIGNAL TO ANOTHER MAGNETIC RECORDING MEDIUM USING THE MASTER MEDIUM
US6611388B1 (en) 1998-03-23 2003-08-26 Matsushita Electric Industrial Co., Ltd. Master information magnetic recorder
US6714367B1 (en) 1998-10-29 2004-03-30 Matsushita Electric Industrial Co., Ltd. Master information medium and method of master information recording
US6858328B1 (en) 1998-03-20 2005-02-22 Matsushita Electric Industrial Co., Ltd. Master information support
US7139140B2 (en) * 2001-02-23 2006-11-21 Fuji Photo Film Co., Ltd. Method and apparatus of magnetically transferring information signal from master medium to slave medium

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63182316A (en) * 1987-01-26 1988-07-27 Asahi Chem Ind Co Ltd Optical disc base
US5247397A (en) * 1990-10-26 1993-09-21 Sony Corporation Method for magnetically recording digital video signals with specified ranges of the easy axis and the bias magnetic field
US6606208B2 (en) 1996-07-22 2003-08-12 Matsushita Electric Industrial Co., Ltd. Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier
US6567227B2 (en) 1996-07-22 2003-05-20 Matsushita Electric Industrial Co., Ltd. Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier
US6587290B2 (en) 1996-07-22 2003-07-01 Matsushita Electric Industrial Co., Ltd. Master information carrier, method for producing the carrier, and method apparatus for writing information into magnetic record medium using the carrier
US6590727B2 (en) 1996-07-22 2003-07-08 Matsushita Electric Industrial Co., Ltd. Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier
EP0915456A4 (en) * 1996-07-22 2002-06-26 Matsushita Electric Industrial Co Ltd MASTER INFORMATION MEDIUM, METHOD FOR PRODUCING SAID MEDIUM, AND METHOD AND APPARATUS FOR RECORDING A MASTER INFORMATION SIGNAL TO ANOTHER MAGNETIC RECORDING MEDIUM USING THE MASTER MEDIUM
US6606209B2 (en) 1996-07-22 2003-08-12 Matsushita Electric Industrial Co., Ltd. Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier
US6961196B2 (en) 1996-07-22 2005-11-01 Matsushita Electric Industrial Co., Ltd. Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier
US6858328B1 (en) 1998-03-20 2005-02-22 Matsushita Electric Industrial Co., Ltd. Master information support
US6611388B1 (en) 1998-03-23 2003-08-26 Matsushita Electric Industrial Co., Ltd. Master information magnetic recorder
US6714367B1 (en) 1998-10-29 2004-03-30 Matsushita Electric Industrial Co., Ltd. Master information medium and method of master information recording
US7139140B2 (en) * 2001-02-23 2006-11-21 Fuji Photo Film Co., Ltd. Method and apparatus of magnetically transferring information signal from master medium to slave medium
EP1235207A3 (en) * 2001-02-23 2007-10-24 FUJIFILM Corporation Method and apparatus of magnetically transferring information signal from master medium to slave medium

Also Published As

Publication number Publication date
JPS6364816B2 (en) 1988-12-13

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