JPS644908A - Multi-layered thin film magnetic head - Google Patents

Multi-layered thin film magnetic head

Info

Publication number
JPS644908A
JPS644908A JP15772187A JP15772187A JPS644908A JP S644908 A JPS644908 A JP S644908A JP 15772187 A JP15772187 A JP 15772187A JP 15772187 A JP15772187 A JP 15772187A JP S644908 A JPS644908 A JP S644908A
Authority
JP
Japan
Prior art keywords
magnetic
films
layered
thin film
magnetic head
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
JP15772187A
Other languages
Japanese (ja)
Inventor
Katsuya Mitsuoka
Shuji Sudo
Masaaki Sano
Takao Imagawa
Akira Kumagai
Shinji Narushige
Masanobu Hanazono
Hiroshi Fukui
Ken Sugita
Tetsuo Kobayashi
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 JP15772187A priority Critical patent/JPS644908A/en
Publication of JPS644908A publication Critical patent/JPS644908A/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
    • G11B5/127—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

  • Magnetic Heads (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)

Abstract

PURPOSE:To provide stable recording and reproducing characteristics and high reading-out output by controlling the magnetic domain structure in the magnetic core shape of a thin film magnetic head. CONSTITUTION:This magnetic head is formed by laminating nonmagnetic films and magnetic films constituting multi-layered films at >=4X10<-3> and <=3X10<-2> ratios of the thicknesses of said films. The multi-layered films consist of the two layers interposed with one layer of the nonmagnetic film between the magnetic films. A conductor coil 54 is formed in part on a magnetic gap material 53 and further, an insulating film 55 consisting of an org. resin is formed to cover the conductor coil 54 with said film and the magnetic gap material 53. The inter-layer bond is intensified by using the two-layered films to the magnetic cores 52, 56. The head efficiency is thus more improved than in the case of using the single-layered films for the magnetic cores 52, 56.
JP15772187A 1987-06-26 1987-06-26 Multi-layered thin film magnetic head Pending JPS644908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15772187A JPS644908A (en) 1987-06-26 1987-06-26 Multi-layered thin film magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15772187A JPS644908A (en) 1987-06-26 1987-06-26 Multi-layered thin film magnetic head

Publications (1)

Publication Number Publication Date
JPS644908A true JPS644908A (en) 1989-01-10

Family

ID=15655918

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15772187A Pending JPS644908A (en) 1987-06-26 1987-06-26 Multi-layered thin film magnetic head

Country Status (1)

Country Link
JP (1) JPS644908A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5313356A (en) * 1990-12-12 1994-05-17 Fuji Electric Co., Ltd. Thin film magnetic head having a magnetic/non-magnetic laminate structure with the non-magnetic material being a metal or an insulating nitride
US5576098A (en) * 1992-07-08 1996-11-19 Fuji Electric Co., Ltd. Thin film magnetic head
JP2010151287A (en) * 2008-12-26 2010-07-08 Kanto Auto Works Ltd Nut body and bolt

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5313356A (en) * 1990-12-12 1994-05-17 Fuji Electric Co., Ltd. Thin film magnetic head having a magnetic/non-magnetic laminate structure with the non-magnetic material being a metal or an insulating nitride
US5576098A (en) * 1992-07-08 1996-11-19 Fuji Electric Co., Ltd. Thin film magnetic head
JP2010151287A (en) * 2008-12-26 2010-07-08 Kanto Auto Works Ltd Nut body and bolt

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