GB1385946A - Methods of manufacturing magnetic transducing heads - Google Patents

Methods of manufacturing magnetic transducing heads

Info

Publication number
GB1385946A
GB1385946A GB2643573A GB2643573A GB1385946A GB 1385946 A GB1385946 A GB 1385946A GB 2643573 A GB2643573 A GB 2643573A GB 2643573 A GB2643573 A GB 2643573A GB 1385946 A GB1385946 A GB 1385946A
Authority
GB
United Kingdom
Prior art keywords
methods
manufacturing magnetic
magnetic transducing
transducing heads
june
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.)
Expired
Application number
GB2643573A
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 Services Ltd
Original Assignee
Fujitsu Services 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 Services Ltd filed Critical Fujitsu Services Ltd
Priority to GB2643573A priority Critical patent/GB1385946A/en
Priority claimed from GB2623072A external-priority patent/GB1385945A/en
Publication of GB1385946A publication Critical patent/GB1385946A/en
Expired 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
    • G11B5/455—Arrangements for functional testing of heads; Measuring arrangements for heads
    • 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
    • G11B5/1272—Assembling or shaping of elements
    • 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
    • G11B5/133—Structure or manufacture of heads, e.g. inductive with cores composed of particles, e.g. with dust cores, with ferrite cores with cores composed of isolated magnetic particles
    • G11B5/1335—Assembling or shaping of elements
    • 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
    • G11B5/193—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features the pole pieces being ferrite or other magnetic particles

Abstract

1385946 Manufacturing magnetic transducers INTERNATIONAL COMPUTERS Ltd 4 June 1973 [6 June 1972] 26435/73 Divided out of 1385945 Heading G5R The description is identical to that of the parent Specification, but the claims relate to the separate testing of polepiece unit and yoke assembly prior to their securing together.
GB2643573A 1972-06-06 1972-06-06 Methods of manufacturing magnetic transducing heads Expired GB1385946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2643573A GB1385946A (en) 1972-06-06 1972-06-06 Methods of manufacturing magnetic transducing heads

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2623072A GB1385945A (en) 1972-06-06 1972-06-06 Methods of manufacturing magnetic transducing heads and parts thereof
GB2643573A GB1385946A (en) 1972-06-06 1972-06-06 Methods of manufacturing magnetic transducing heads

Publications (1)

Publication Number Publication Date
GB1385946A true GB1385946A (en) 1975-03-05

Family

ID=26258153

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2643573A Expired GB1385946A (en) 1972-06-06 1972-06-06 Methods of manufacturing magnetic transducing heads

Country Status (1)

Country Link
GB (1) GB1385946A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520540A1 (en) * 1982-01-28 1983-07-29 Victor Company Of Japan MAGNETIC HEAD AND METHOD FOR MANUFACTURING THE SAME
FR2641111A1 (en) * 1988-12-27 1990-06-29 Thomson Csf

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520540A1 (en) * 1982-01-28 1983-07-29 Victor Company Of Japan MAGNETIC HEAD AND METHOD FOR MANUFACTURING THE SAME
US4595964A (en) * 1982-01-28 1986-06-17 Victor Company Of Japan, Limited Magnetic head and method of making the same
FR2641111A1 (en) * 1988-12-27 1990-06-29 Thomson Csf
EP0376790A1 (en) * 1988-12-27 1990-07-04 Thomson-Csf Process for producing planar magnetic heads, and magnetic heads obtained by such a process

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee