JPS54128315A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS54128315A
JPS54128315A JP3548978A JP3548978A JPS54128315A JP S54128315 A JPS54128315 A JP S54128315A JP 3548978 A JP3548978 A JP 3548978A JP 3548978 A JP3548978 A JP 3548978A JP S54128315 A JPS54128315 A JP S54128315A
Authority
JP
Japan
Prior art keywords
recording
magnetic pole
medium
magnetic
coil
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
JP3548978A
Other languages
Japanese (ja)
Inventor
Akio Nakamura
Shiro Nakagawa
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.)
TDK Corp
Original Assignee
TDK Corp
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 TDK Corp filed Critical TDK Corp
Priority to JP3548978A priority Critical patent/JPS54128315A/en
Publication of JPS54128315A publication Critical patent/JPS54128315A/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 simplify the constitution and enable recording and reproduction to be performed simultaneously, by integrating recording head and playback head of a simple laminar structure, and using the auxiliary magnetic pole necessary for vertical magnetization system commonly in both heads. CONSTITUTION:A main magnetic pole for recording 20, which is a thin laminar ferromagnetic body almost shaped in a U form being wound with a coil 21, and a main magnetic pole for playback 30, which is a ferromagnetic body almost shaped in a U form being wound with a coil 31 having a straight side 30b which intersects with a side 30a at a point where curved sides 30a and 30a slowly approaching along the running direction A of a magnetic recording medium 23 contact with the medium 23, are coupled together by way of a nonmagnetic spacer 22, and non magnetic spacers 32a and 22 are inserted between leg parts thereof. When recording, a recording current is passed into the coil 21, and the magnetic flux due to recording current flows in the closed magnetic path composed of the magnetic pole 20, medium 23, and auxiliary magnetic pole 24 as shown by the dotted line, so that the record is registered in the entire opposing width W. Thus, the signal recorded in the medium 23 is immediately read out by the magnetic pole 30.
JP3548978A 1978-03-29 1978-03-29 Magnetic head Pending JPS54128315A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3548978A JPS54128315A (en) 1978-03-29 1978-03-29 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3548978A JPS54128315A (en) 1978-03-29 1978-03-29 Magnetic head

Publications (1)

Publication Number Publication Date
JPS54128315A true JPS54128315A (en) 1979-10-04

Family

ID=12443152

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3548978A Pending JPS54128315A (en) 1978-03-29 1978-03-29 Magnetic head

Country Status (1)

Country Link
JP (1) JPS54128315A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4672494A (en) * 1983-09-01 1987-06-09 Matsushita Electric Industrial Co., Ltd. Magnetic head for effecting perpendicular magnetic recording

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4672494A (en) * 1983-09-01 1987-06-09 Matsushita Electric Industrial Co., Ltd. Magnetic head for effecting perpendicular magnetic recording

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