JPS51149018A - Magnetic head device - Google Patents

Magnetic head device

Info

Publication number
JPS51149018A
JPS51149018A JP7353475A JP7353475A JPS51149018A JP S51149018 A JPS51149018 A JP S51149018A JP 7353475 A JP7353475 A JP 7353475A JP 7353475 A JP7353475 A JP 7353475A JP S51149018 A JPS51149018 A JP S51149018A
Authority
JP
Japan
Prior art keywords
magnetic head
head device
machinework
demagnetizing
choosing
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
JP7353475A
Other languages
Japanese (ja)
Inventor
Seiya Ogawa
Kohei Ikeda
Naochika Izawa
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 JP7353475A priority Critical patent/JPS51149018A/en
Publication of JPS51149018A publication Critical patent/JPS51149018A/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
    • G11B5/23—Gap features

Abstract

PURPOSE:To obtain a magnetic head device enabling high density recording without precise machinework by demagnetizing a part of the gap width direction of two opposing magnetic cores and choosing the track width.
JP7353475A 1975-06-17 1975-06-17 Magnetic head device Pending JPS51149018A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7353475A JPS51149018A (en) 1975-06-17 1975-06-17 Magnetic head device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7353475A JPS51149018A (en) 1975-06-17 1975-06-17 Magnetic head device

Publications (1)

Publication Number Publication Date
JPS51149018A true JPS51149018A (en) 1976-12-21

Family

ID=13520979

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7353475A Pending JPS51149018A (en) 1975-06-17 1975-06-17 Magnetic head device

Country Status (1)

Country Link
JP (1) JPS51149018A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986000740A1 (en) * 1984-07-13 1986-01-30 Matsushita Electric Industrial Co., Ltd. Magnetic head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986000740A1 (en) * 1984-07-13 1986-01-30 Matsushita Electric Industrial Co., Ltd. Magnetic head

Similar Documents

Publication Publication Date Title
JPS53116809A (en) Magnetic head core
JPS5235616A (en) Magnetic head
CA936958A (en) Magnetic recording head having a non-magnetic ferrite gap
JPS5347810A (en) Magnetic head
JPS51140708A (en) Magnetic head
JPS5345216A (en) Magnetic video recording and reproducing device of rotary head type
JPS5255513A (en) Magnetic head
JPS51149018A (en) Magnetic head device
JPS5350815A (en) Magnetic head
JPS539110A (en) Magnetic head of vertical magnetization recording system
JPS5411710A (en) Magnetic recorder-reproducer
JPS5278413A (en) Magnetic head
JPS5233505A (en) Magnetic tape recording reproduction device
JPS5220810A (en) Magnetic recording and playback apparatus containing double gap head
JPS5241504A (en) Magnetic recorder/player
JPS51150315A (en) Magnetic head
JPS5236011A (en) Magnetic recording and playback method
JPS546503A (en) Magnetic recorder
JPS5256917A (en) Floating magnetic head
JPS51138416A (en) Magnetic recorder/reproducer
JPS53101411A (en) Mr type magnetic head
JPS548512A (en) Magnetic recording-repruducer
JPS52153716A (en) Magnetic head
JPS5411709A (en) Magnetic recorder-reproducer
JPS5255512A (en) Magnetic head