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JPS6482301A - Magnetic recording and reproducing device - Google Patents

Magnetic recording and reproducing device

Info

Publication number
JPS6482301A
JPS6482301A JP23872287A JP23872287A JPS6482301A JP S6482301 A JPS6482301 A JP S6482301A JP 23872287 A JP23872287 A JP 23872287A JP 23872287 A JP23872287 A JP 23872287A JP S6482301 A JPS6482301 A JP S6482301A
Authority
JP
Japan
Prior art keywords
head
thin film
current
magnetic
flow
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.)
Pending
Application number
JP23872287A
Other languages
Japanese (ja)
Inventor
Kazuo Shiiki
Takeo Yamashita
Isamu Yuhito
Yoshihiro Hamakawa
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP23872287A priority Critical patent/JPS6482301A/en
Publication of JPS6482301A publication Critical patent/JPS6482301A/en
Pending 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
    • G11B5/465—Arrangements for demagnetisation of heads
    • 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
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/3113—Details for improving the magnetic domain structure or avoiding the formation or displacement of undesirable magnetic domains

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

PURPOSE:To always obtain a reproduced waveform having high reproducibility and being free from a wiggle by allowing a current to flow to a coil of a magnetic head at the time of reproduction. CONSTITUTION:At the time of reproduction, a current is allowed to flow to a coil of a thin film head, and the thin film magnetic head is magnetized to the extent that a medium is not demagnetized. In this regard, this thin film head is a head which has used an Ni-Fe alloy as a magnetic pole material, and a current which is allowed to flow in a DC current. In such a way, when the thin film head is magnetized, the reproducibility of a magnetic domain structure of a magnetic pole is improved, that is, the same magnetic state comes to be reproduced easily, therefore, the generation of a wiggle can be suppressed. In such a way, the high recording density can be realized.
JP23872287A 1987-09-25 1987-09-25 Magnetic recording and reproducing device Pending JPS6482301A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23872287A JPS6482301A (en) 1987-09-25 1987-09-25 Magnetic recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23872287A JPS6482301A (en) 1987-09-25 1987-09-25 Magnetic recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS6482301A true JPS6482301A (en) 1989-03-28

Family

ID=17034288

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23872287A Pending JPS6482301A (en) 1987-09-25 1987-09-25 Magnetic recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS6482301A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0339874A2 (en) * 1988-04-29 1989-11-02 Quantum Corporation Thin film head read recovery
US6587295B1 (en) * 1999-12-13 2003-07-01 Tdk Corporation Method, apparatus, system and computer process for improving property of thin-film magnetic head

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0339874A2 (en) * 1988-04-29 1989-11-02 Quantum Corporation Thin film head read recovery
EP0339874A3 (en) * 1988-04-29 1992-02-26 Quantum Corporation Thin film head read recovery
US6587295B1 (en) * 1999-12-13 2003-07-01 Tdk Corporation Method, apparatus, system and computer process for improving property of thin-film magnetic head

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