GB1319088A – Method of manufacturing multi-element magnetic head
– Google Patents
GB1319088A – Method of manufacturing multi-element magnetic head
– Google Patents
Method of manufacturing multi-element magnetic head
Info
Publication number
GB1319088A
GB1319088A
GB2972470A
GB2972470A
GB1319088A
GB 1319088 A
GB1319088 A
GB 1319088A
GB 2972470 A
GB2972470 A
GB 2972470A
GB 2972470 A
GB2972470 A
GB 2972470A
GB 1319088 A
GB1319088 A
GB 1319088A
Authority
GB
United Kingdom
Prior art keywords
magnetic
magnetic head
june
slots
strips
Prior art date
1969-06-23
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
GB2972470A
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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.)
1969-06-23
Filing date
1970-06-18
Publication date
1973-05-31
1970-06-18
Application filed by Matsushita Electric Industrial Co Ltd
filed
Critical
Matsushita Electric Industrial Co Ltd
1973-05-31
Publication of GB1319088A
publication
Critical
patent/GB1319088A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
G11B5/1871—Shaping or contouring of the transducing or guiding surface
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
G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track
Abstract
1319088 Magnetic heads MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 18 June 1970 [23 June 1969] 29724/70 Heading G5R A multi-element magnetic head unit is constructed by joining two magnetic oxide core sections 4, 5 through a gap spacer, 6 as in Fig. 1a, removing the lower portions of the sections, and cutting a series of slots 8 extending into the spacer thereby to produce the structure shown in the upper part of Fig. 1b; shielding plates 10 with non-magnetic strips 9 are then fixed in slots 8, yokes 12 with coils 11 are joined to the oxide parts 7, and the arrangement is potted and cased, as in Fig. 1d (not shown). The assembly is then ground/lapped until the plates 10 and strips 9 are exposed and, while observing in the directions A, A
GB2972470A
1969-06-23
1970-06-18
Method of manufacturing multi-element magnetic head
Expired
GB1319088A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
JP5046869A
JPS5031818B1
(en)
1969-06-23
1969-06-23
Publications (1)
Publication Number
Publication Date
GB1319088A
true
GB1319088A
(en)
1973-05-31
Family
ID=12859702
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB2972470A
Expired
GB1319088A
(en)
1969-06-23
1970-06-18
Method of manufacturing multi-element magnetic head
Country Status (6)
Country
Link
JP
(1)
JPS5031818B1
(en)
CA
(1)
CA922097A
(en)
DE
(1)
DE2030712A1
(en)
FR
(1)
FR2047052B1
(en)
GB
(1)
GB1319088A
(en)
NL
(1)
NL7009147A
(en)
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2159318A
(en)
*
1984-05-25
1985-11-27
Alps Electric Co Ltd
Floating magnetic head
TWI465330B
(en)
*
2010-02-02
2014-12-21
Apple Inc
Cosmetic co-removal of material for electronic device surfaces
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
NL243050A
(en)
*
1959-09-05
US3353261A
(en)
*
1964-12-30
1967-11-21
Ibm
Method of making a multitrack magnetic transducer head
1969
1969-06-23
JP
JP5046869A
patent/JPS5031818B1/ja
active
Pending
1970
1970-06-18
GB
GB2972470A
patent/GB1319088A/en
not_active
Expired
1970-06-19
CA
CA086033A
patent/CA922097A/en
not_active
Expired
1970-06-22
NL
NL7009147A
patent/NL7009147A/xx
unknown
1970-06-22
DE
DE19702030712
patent/DE2030712A1/en
active
Pending
1970-06-22
FR
FR7022967A
patent/FR2047052B1/fr
not_active
Expired
Cited By (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2159318A
(en)
*
1984-05-25
1985-11-27
Alps Electric Co Ltd
Floating magnetic head
TWI465330B
(en)
*
2010-02-02
2014-12-21
Apple Inc
Cosmetic co-removal of material for electronic device surfaces
US9363905B2
(en)
2010-02-02
2016-06-07
Apple Inc.
Cosmetic co-removal of material for electronic device surfaces
US10234906B2
(en)
2010-02-02
2019-03-19
Apple Inc.
Cosmetic co-removal of material for electronic device surfaces
US10353436B2
(en)
2010-02-02
2019-07-16
Apple Inc.
Cosmetic co-removal of material for electronic device surfaces
US11099609B2
(en)
2010-02-02
2021-08-24
Apple Inc.
Cosmetic co-removal of material for electronic device surfaces
Also Published As
Publication number
Publication date
NL7009147A
(en)
1970-12-28
FR2047052A1
(en)
1971-03-12
CA922097A
(en)
1973-03-06
FR2047052B1
(en)
1973-01-12
JPS5031818B1
(en)
1975-10-15
DE2030712A1
(en)
1971-01-14
Similar Documents
Publication
Publication Date
Title
JPS5584016A
(en)
1980-06-24
Magnetic head and its manufacture
GB1300824A
(en)
1972-12-20
Method for manufacturing magnetic heads
GB1307587A
(en)
1973-02-21
Multiple transducing element magnetic heads
GB1422509A
(en)
1976-01-28
Magnetic transducer assembly
ES321648A1
(en)
1966-12-16
Method of manufacturing pole-piece units for magnetic heads
GB1321940A
(en)
1973-07-04
Multichannel rotary transformer
GB1525007A
(en)
1978-09-20
Multi-element magnetic head
GB1319088A
(en)
1973-05-31
Method of manufacturing multi-element magnetic head
JPS5235616A
(en)
1977-03-18
Magnetic head
GB1139737A
(en)
1969-01-15
Making multitrack magnetic transducer
GB900893A
(en)
1962-07-11
Improvements relating to magnetic-recording heads
GB1292945A
(en)
1972-10-18
Magnetic head assembly and method of making the same
GB1413229A
(en)
1975-11-12
Magnetic transducer apparatus
GB986543A
(en)
1965-03-17
A method of manufacturing a magnetic head assembly
GB1036001A
(en)
1966-07-13
Electromagnetic transducer head
GB900507A
(en)
1962-07-04
Improvements in or relating to magnetic heads
JPS539110A
(en)
1978-01-27
Magnetic head of vertical magnetization recording system
GB1307608A
(en)
1973-02-21
Multi-track dual-gap magnetic head assembly
GB949174A
(en)
1964-02-12
Improved magnetic recording heads
JPS542110A
(en)
1979-01-09
Production of floating type magnetic head
GB1376652A
(en)
1974-12-11
Magnetic transducers and to methods of manufacture thereof
SU670965A1
(en)
1979-06-30
Method of manufacturing floating magnetic head assembly
GB1339416A
(en)
1973-12-05
Magnetic head and method of manufacture thereof
GB1308956A
(en)
1973-03-07
Multi-element magnetic head
GB1152721A
(en)
1969-05-21
Improvements in or relating to Magnetic Transducer Heads.
Legal Events
Date
Code
Title
Description
1973-10-10
PS
Patent sealed
1979-01-31
PCNP
Patent ceased through non-payment of renewal fee
