JPS51112317A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS51112317A
JPS51112317A JP3609575A JP3609575A JPS51112317A JP S51112317 A JPS51112317 A JP S51112317A JP 3609575 A JP3609575 A JP 3609575A JP 3609575 A JP3609575 A JP 3609575A JP S51112317 A JPS51112317 A JP S51112317A
Authority
JP
Japan
Prior art keywords
magnetic head
reluctance
controlling
control
yoke
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
JP3609575A
Other languages
Japanese (ja)
Inventor
Hideo Hayashida
Akinori Kato
Takeaki Akatsuka
Kiyokazu Shinjo
Takuo Manno
Nobuo Sakakura
Hiroyoshi Amo
Katsumi Kondo
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP3609575A priority Critical patent/JPS51112317A/en
Publication of JPS51112317A publication Critical patent/JPS51112317A/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
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/245—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams

Abstract

PURPOSE:On-off control of operation of a magnetic head by controlling of reluctance of a part of a magnetic head yoke.
JP3609575A 1975-03-27 1975-03-27 Magnetic head Pending JPS51112317A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3609575A JPS51112317A (en) 1975-03-27 1975-03-27 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3609575A JPS51112317A (en) 1975-03-27 1975-03-27 Magnetic head

Publications (1)

Publication Number Publication Date
JPS51112317A true JPS51112317A (en) 1976-10-04

Family

ID=12460191

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3609575A Pending JPS51112317A (en) 1975-03-27 1975-03-27 Magnetic head

Country Status (1)

Country Link
JP (1) JPS51112317A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5979417A (en) * 1982-10-28 1984-05-08 Sony Corp Magnetic head device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5979417A (en) * 1982-10-28 1984-05-08 Sony Corp Magnetic head device

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