JPS5798121A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS5798121A
JPS5798121A JP17296980A JP17296980A JPS5798121A JP S5798121 A JPS5798121 A JP S5798121A JP 17296980 A JP17296980 A JP 17296980A JP 17296980 A JP17296980 A JP 17296980A JP S5798121 A JPS5798121 A JP S5798121A
Authority
JP
Japan
Prior art keywords
magnetic head
magnetic
medium
al2o3
sio2
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
JP17296980A
Other languages
Japanese (ja)
Inventor
Shigetoshi Morita
Shinji Furuichi
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP17296980A priority Critical patent/JPS5798121A/en
Publication of JPS5798121A publication Critical patent/JPS5798121A/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
    • G11B5/255—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 protection against wear

Abstract

PURPOSE:To improve wear resistance of a magnetic head, by attaching non- magnetic materials such as Al2O3, SiO2, by spattering or high frequency ion plating, to a surface which slidably contacts to a medium. CONSTITUTION:Non-magnetic protection film 1 is attached in uniform thickness to a surface of a magnetic head which contacts with a medium. Magnetic head of ferrite of Mn-Zn family manufactured through a normal machine work, is laid in a sputtering apparatus. Non-magnetic materials such as Al2O3, SiO2 which have a value of Vickers hardness >=Hv 600 is used in simple substance for forming a guard membrane through a sputtering only on the surface which opposes the medium of the magnetic head. In this arrangement, drop of reproducing output is suppressed >=15% maximum if thickness of the non-magnetic material is >=1/5 of the floating quantity.
JP17296980A 1980-12-08 1980-12-08 Magnetic head Pending JPS5798121A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17296980A JPS5798121A (en) 1980-12-08 1980-12-08 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17296980A JPS5798121A (en) 1980-12-08 1980-12-08 Magnetic head

Publications (1)

Publication Number Publication Date
JPS5798121A true JPS5798121A (en) 1982-06-18

Family

ID=15951708

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17296980A Pending JPS5798121A (en) 1980-12-08 1980-12-08 Magnetic head

Country Status (1)

Country Link
JP (1) JPS5798121A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62209708A (en) * 1986-03-11 1987-09-14 Toshiba Corp Magnetic head
FR2597247A1 (en) * 1986-04-11 1987-10-16 Thomson Csf METHOD FOR MAKING A MECHANICAL PROTECTION LAYER FOR MAGNETIC RECORDING / READING HEAD AND RECORDING / READING MAGNETIC HEAD USING THE SAME

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62209708A (en) * 1986-03-11 1987-09-14 Toshiba Corp Magnetic head
FR2597247A1 (en) * 1986-04-11 1987-10-16 Thomson Csf METHOD FOR MAKING A MECHANICAL PROTECTION LAYER FOR MAGNETIC RECORDING / READING HEAD AND RECORDING / READING MAGNETIC HEAD USING THE SAME
US4849842A (en) * 1986-04-11 1989-07-18 Thomson-Csf Method for the manufacture of a mechanically shielding layer for a magnetic read/write head, and magnetic read/write head using this method

Similar Documents

Publication Publication Date Title
JPS57130233A (en) Magnetic recording medium
JPS56107363A (en) Floating type magnetic head
JPS55122234A (en) Magnetic recording medium
JPS57183004A (en) Magnetically recording medium
JPS5798121A (en) Magnetic head
JPS55157121A (en) Magnetic head core
JPS5718025A (en) Magnetic recording medium
JPS56143522A (en) Magnetic recording medium
JPS57183628A (en) Magnetic recording medium
JPS56107837A (en) Grinding wheel for electrolytic electrospark machining
JPS5733435A (en) Magnetic recording medium
JPS5256510A (en) Magnetic recording material
JPS5724026A (en) Magnetic recording medium
JPS5755533A (en) Magnetic recording medium
JPS56143523A (en) Magnetic recording medium
JPS5329527A (en) Rolled core with gap
JPS5323608A (en) Magnet ic recording medium
JPS5720910A (en) Magnetic head
JPS57147118A (en) Thin film type magnetic head
ES421261A1 (en) Magnetic core assemblies
JPS5733419A (en) Magnetic head
JPS5737721A (en) Magnetic recording medium
JPS5755523A (en) Production of magnetic core
JPS57191819A (en) Magnetic head
JPS52137313A (en) Magnetic head