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JPS55150116A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS55150116A
JPS55150116A JP5799379A JP5799379A JPS55150116A JP S55150116 A JPS55150116 A JP S55150116A JP 5799379 A JP5799379 A JP 5799379A JP 5799379 A JP5799379 A JP 5799379A JP S55150116 A JPS55150116 A JP S55150116A
Authority
JP
Japan
Prior art keywords
magnetic
thin
film
head
conductor
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
JP5799379A
Other languages
Japanese (ja)
Inventor
Tsutomu Iikawa
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP5799379A priority Critical patent/JPS55150116A/en
Publication of JPS55150116A publication Critical patent/JPS55150116A/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

Landscapes

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

Abstract

PURPOSE:To prolong the life of a magnetic head while making easy reading form a magnetic medium of a high frequency and writing on that of high coercive force, by employing a thin amorphous metallic film for at least part of a thin ferromagnetic film forming the magnetic path of a thin-film magnetic head. CONSTITUTION:On substrate A of crystal, etc., thin amorphous metallic film 1 of an alloy, etc., of boron and iron is formed by nonelectrolytic plating, vapor-deposition, etc., to obtain lower magnetic layer 1. Next, an insulating layer is formed and on it, coiled aluminum conductor 3 is formed. On the conductor, upper magnetic layer 2 is formed of an amorphous metallic film giving gap 5 to its surface opposing to the magnetic medium, thereby obtaining a thin-film head. Conductor 3 is connected at junction part 3. Since amorphous metal is high in specific resistance, a decrease in magnetic permeability due to an eddy current loss at a high frequency is lessened to make a high-frequency read easy and writing is also simplified because of high saturated magnetic-flux density. Additionally, hardness is high and the abrasion of a head surface and the destruction of a gap part are eliminated, so that the life can be prolonged.
JP5799379A 1979-05-14 1979-05-14 Magnetic head Pending JPS55150116A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5799379A JPS55150116A (en) 1979-05-14 1979-05-14 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5799379A JPS55150116A (en) 1979-05-14 1979-05-14 Magnetic head

Publications (1)

Publication Number Publication Date
JPS55150116A true JPS55150116A (en) 1980-11-21

Family

ID=13071524

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5799379A Pending JPS55150116A (en) 1979-05-14 1979-05-14 Magnetic head

Country Status (1)

Country Link
JP (1) JPS55150116A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5823315A (en) * 1981-08-03 1983-02-12 Hitachi Ltd Thin film magnetic head
EP0081239A2 (en) * 1981-12-09 1983-06-15 Matsushita Electric Industrial Co., Ltd. Magnetic head
EP0107443A2 (en) * 1982-10-15 1984-05-02 Hitachi, Ltd. Magnetic recording and reproducing thin film head
JPS5994221A (en) * 1982-11-20 1984-05-30 Matsushita Electric Ind Co Ltd Thin film magnetic head
JPS6035316A (en) * 1983-08-04 1985-02-23 Nec Corp Thin film magnetic head
JPS60151814A (en) * 1984-01-20 1985-08-09 Hitachi Ltd Thin film magnetic head
JPS60256905A (en) * 1984-06-01 1985-12-18 Matsushita Electric Ind Co Ltd Thin film magnetic head
JPS6150177A (en) * 1984-08-20 1986-03-12 Tohoku Richo Kk Electrode for electrographic recording and its production
JPS61144715A (en) * 1984-12-18 1986-07-02 Matsushita Electric Ind Co Ltd Thin film magnetic head and its production
US4622613A (en) * 1983-10-07 1986-11-11 Matsushita Electric Industrials Co., Ltd. Thin film magnetic head

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5823315A (en) * 1981-08-03 1983-02-12 Hitachi Ltd Thin film magnetic head
JPH0345445B2 (en) * 1981-08-03 1991-07-11 Hitachi Ltd
EP0081239A2 (en) * 1981-12-09 1983-06-15 Matsushita Electric Industrial Co., Ltd. Magnetic head
EP0107443A2 (en) * 1982-10-15 1984-05-02 Hitachi, Ltd. Magnetic recording and reproducing thin film head
JPS5994221A (en) * 1982-11-20 1984-05-30 Matsushita Electric Ind Co Ltd Thin film magnetic head
JPS6035316A (en) * 1983-08-04 1985-02-23 Nec Corp Thin film magnetic head
JPH0556561B2 (en) * 1983-08-04 1993-08-19 Nippon Electric Co
US4622613A (en) * 1983-10-07 1986-11-11 Matsushita Electric Industrials Co., Ltd. Thin film magnetic head
JPS60151814A (en) * 1984-01-20 1985-08-09 Hitachi Ltd Thin film magnetic head
JPS60256905A (en) * 1984-06-01 1985-12-18 Matsushita Electric Ind Co Ltd Thin film magnetic head
JPS6150177A (en) * 1984-08-20 1986-03-12 Tohoku Richo Kk Electrode for electrographic recording and its production
JPH0435070B2 (en) * 1984-08-20 1992-06-09 Tohoku Riko Kk
JPS61144715A (en) * 1984-12-18 1986-07-02 Matsushita Electric Ind Co Ltd Thin film magnetic head and its production
JPH0352124B2 (en) * 1984-12-18 1991-08-09 Matsushita Electric Ind Co Ltd

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