GB2173937B - Composite type magnetic head & manufacture of same - Google Patents

Composite type magnetic head & manufacture of same

Info

Publication number
GB2173937B
GB2173937B GB8606924A GB8606924A GB2173937B GB 2173937 B GB2173937 B GB 2173937B GB 8606924 A GB8606924 A GB 8606924A GB 8606924 A GB8606924 A GB 8606924A GB 2173937 B GB2173937 B GB 2173937B
Authority
GB
United Kingdom
Prior art keywords
manufacture
same
magnetic head
type magnetic
composite type
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
GB8606924A
Other languages
English (en)
Other versions
GB2173937A (en
GB8606924D0 (en
Inventor
Atsushi Ibaragi
Tetsuya Iwata
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.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric 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.)
Filing date
Publication date
Priority claimed from JP60057746A external-priority patent/JPS61216106A/ja
Priority claimed from JP60060332A external-priority patent/JPS61217919A/ja
Priority claimed from JP60061172A external-priority patent/JPS61220110A/ja
Priority claimed from JP60077928A external-priority patent/JPS61237213A/ja
Application filed by Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Publication of GB8606924D0 publication Critical patent/GB8606924D0/en
Publication of GB2173937A publication Critical patent/GB2173937A/en
Application granted granted Critical
Publication of GB2173937B publication Critical patent/GB2173937B/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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • 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
    • G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
    • G11B5/2651—Manufacture
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
GB8606924A 1985-03-22 1986-03-20 Composite type magnetic head & manufacture of same Expired GB2173937B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP60057746A JPS61216106A (ja) 1985-03-22 1985-03-22 複合型磁気ヘツドおよびその製造方法
JP60060332A JPS61217919A (ja) 1985-03-25 1985-03-25 複合型磁気ヘツドのバツクバ−接合構造
JP60061172A JPS61220110A (ja) 1985-03-26 1985-03-26 複合型磁気ヘツドの接合構造
JP60077928A JPS61237213A (ja) 1985-04-12 1985-04-12 複合型磁気ヘツド

Publications (3)

Publication Number Publication Date
GB8606924D0 GB8606924D0 (en) 1986-04-23
GB2173937A GB2173937A (en) 1986-10-22
GB2173937B true GB2173937B (en) 1989-06-28

Family

ID=27463552

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8606924A Expired GB2173937B (en) 1985-03-22 1986-03-20 Composite type magnetic head & manufacture of same

Country Status (3)

Country Link
KR (1) KR900000627B1 (enrdf_load_stackoverflow)
DE (1) DE3609694A1 (enrdf_load_stackoverflow)
GB (1) GB2173937B (enrdf_load_stackoverflow)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1325239A (en) * 1970-08-28 1973-08-01 Ampex Magnetic head and method of manufacture thereof
GB1376652A (en) * 1972-01-04 1974-12-11 Int Computers Ltd Magnetic transducers and to methods of manufacture thereof
EP0116451A2 (en) * 1983-02-08 1984-08-22 Ampex Corporation Magnetic transducer structure having reduced track width and a method of manufacturing thereof
EP0149509A2 (en) * 1984-01-14 1985-07-24 Ngk Insulators, Ltd. Magnectic head core and process of manufacturing the same
GB2154359A (en) * 1984-02-17 1985-09-04 Hitachi Metals Ltd Magnetic head

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4110804A (en) * 1977-07-21 1978-08-29 International Business Machines Corporation Read/write and tunnel erase magnetic head assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1325239A (en) * 1970-08-28 1973-08-01 Ampex Magnetic head and method of manufacture thereof
GB1376652A (en) * 1972-01-04 1974-12-11 Int Computers Ltd Magnetic transducers and to methods of manufacture thereof
EP0116451A2 (en) * 1983-02-08 1984-08-22 Ampex Corporation Magnetic transducer structure having reduced track width and a method of manufacturing thereof
EP0149509A2 (en) * 1984-01-14 1985-07-24 Ngk Insulators, Ltd. Magnectic head core and process of manufacturing the same
GB2154359A (en) * 1984-02-17 1985-09-04 Hitachi Metals Ltd Magnetic head

Also Published As

Publication number Publication date
KR900000627B1 (ko) 1990-02-01
DE3609694C2 (enrdf_load_stackoverflow) 1991-08-01
DE3609694A1 (de) 1986-09-25
KR860007631A (ko) 1986-10-15
GB2173937A (en) 1986-10-22
GB8606924D0 (en) 1986-04-23

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Legal Events

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

Effective date: 19960320