JPS57135418A - Composite thin film head - Google Patents

Composite thin film head

Info

Publication number
JPS57135418A
JPS57135418A JP2200281A JP2200281A JPS57135418A JP S57135418 A JPS57135418 A JP S57135418A JP 2200281 A JP2200281 A JP 2200281A JP 2200281 A JP2200281 A JP 2200281A JP S57135418 A JPS57135418 A JP S57135418A
Authority
JP
Japan
Prior art keywords
write
head
readout
coil
sensitivity
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
JP2200281A
Other languages
Japanese (ja)
Inventor
Tokio Tatsuta
Mitsumasa Oshiki
Masao Hiyane
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 JP2200281A priority Critical patent/JPS57135418A/en
Publication of JPS57135418A publication Critical patent/JPS57135418A/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
    • G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier

Abstract

PURPOSE:To generate a sharp write magnetic field, and also to raise the readout sensitivity, by providing not only the first coil but also another coil, and energizing the main magnetic pole to the same polarity. CONSTITUTION:Readout is executed by providing a thin film ringlike head 11 having a readout coil 12. Reproducing sensitivity of the ringlike head 11 is satisfactory since an annularly flowing magnetic resistance is low. On the other hand, the ring head 11 is used for horizontal recording originally, its write magnetic field is strong in its horizontal component in a gap part 13, vertical magnetizing recording is not executed, and the recording density cannot be raised sufficiently. Therefore, by providing a write coil 14 on the outside circumference of the thin film ring head 11, the gap 13 is energized to the same polarity, the write magnetc field is made sharp, and a composite head which is satisfactory in not only write sensitivity but also readout sensitivity is formed.
JP2200281A 1981-02-17 1981-02-17 Composite thin film head Pending JPS57135418A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2200281A JPS57135418A (en) 1981-02-17 1981-02-17 Composite thin film head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2200281A JPS57135418A (en) 1981-02-17 1981-02-17 Composite thin film head

Publications (1)

Publication Number Publication Date
JPS57135418A true JPS57135418A (en) 1982-08-21

Family

ID=12070793

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2200281A Pending JPS57135418A (en) 1981-02-17 1981-02-17 Composite thin film head

Country Status (1)

Country Link
JP (1) JPS57135418A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6059511A (en) * 1983-08-19 1985-04-05 シーメンス、アクチエンゲゼルシヤフト Magnetic head for vertically magnetized recording medium
EP0146861A2 (en) * 1983-12-23 1985-07-03 Siemens Aktiengesellschaft Device with a thin layer magnetic head for perpendicular (vertical) recording
DE3346886A1 (en) * 1983-12-23 1985-07-11 Siemens AG, 1000 Berlin und 8000 München COMBINED WRITING AND READING MAGNET HEAD FOR A LONGITUDINAL OR VERTICAL RECORDING MEDIUM
JPS60237615A (en) * 1983-12-23 1985-11-26 シ−メンス、アクチエンゲゼルシヤフト Magnetic head

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6059511A (en) * 1983-08-19 1985-04-05 シーメンス、アクチエンゲゼルシヤフト Magnetic head for vertically magnetized recording medium
EP0146861A2 (en) * 1983-12-23 1985-07-03 Siemens Aktiengesellschaft Device with a thin layer magnetic head for perpendicular (vertical) recording
DE3346886A1 (en) * 1983-12-23 1985-07-11 Siemens AG, 1000 Berlin und 8000 München COMBINED WRITING AND READING MAGNET HEAD FOR A LONGITUDINAL OR VERTICAL RECORDING MEDIUM
JPS60237617A (en) * 1983-12-23 1985-11-26 シ−メンス、アクチエンゲゼルシヤフト Magnetic head
JPS60237615A (en) * 1983-12-23 1985-11-26 シ−メンス、アクチエンゲゼルシヤフト Magnetic head
EP0150371B1 (en) * 1983-12-23 1988-11-09 Siemens Aktiengesellschaft Thin film magnetic head for a recording medium to be magnetized vertically
JPH0322644B2 (en) * 1983-12-23 1991-03-27 Siemens Ag

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