DE69120457D1 - Fliegender zusammengesetzter Magnetkopf - Google Patents

Fliegender zusammengesetzter Magnetkopf

Info

Publication number
DE69120457D1
DE69120457D1 DE69120457T DE69120457T DE69120457D1 DE 69120457 D1 DE69120457 D1 DE 69120457D1 DE 69120457 T DE69120457 T DE 69120457T DE 69120457 T DE69120457 T DE 69120457T DE 69120457 D1 DE69120457 D1 DE 69120457D1
Authority
DE
Germany
Prior art keywords
magnetic head
composite magnetic
flying
flying composite
head
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 - Fee Related
Application number
DE69120457T
Other languages
English (en)
Other versions
DE69120457T2 (de
Inventor
Tadafumi Tomitani
Ryo Goto
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
Priority claimed from JP25101190A external-priority patent/JPH041902A/ja
Application filed by Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Application granted granted Critical
Publication of DE69120457D1 publication Critical patent/DE69120457D1/de
Publication of DE69120457T2 publication Critical patent/DE69120457T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B5/1875—"Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers
    • G11B5/1877—"Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers including at least one magnetic thin film
    • G11B5/1878—"Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers including at least one magnetic thin film disposed immediately adjacent to the transducing gap, e.g. "Metal-In-Gap" structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
DE1991620457 1990-04-13 1991-04-12 Fliegender zusammengesetzter Magnetkopf Expired - Fee Related DE69120457T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9805390 1990-04-13
JP25101190A JPH041902A (ja) 1990-04-13 1990-09-20 浮上型複合磁気ヘッド

Publications (2)

Publication Number Publication Date
DE69120457D1 true DE69120457D1 (de) 1996-08-01
DE69120457T2 DE69120457T2 (de) 1997-01-23

Family

ID=26439253

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1991620457 Expired - Fee Related DE69120457T2 (de) 1990-04-13 1991-04-12 Fliegender zusammengesetzter Magnetkopf

Country Status (2)

Country Link
EP (1) EP0451871B1 (de)
DE (1) DE69120457T2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2260846B (en) * 1991-07-11 1995-05-17 Hitachi Metals Ltd Composite magnetic heads

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5779603A (en) * 1980-11-05 1982-05-18 Hitachi Metals Ltd Magnetic head
JPS5779144A (en) * 1980-11-05 1982-05-18 Hitachi Metals Ltd High permeability alloy
JPS63155414A (ja) * 1986-12-18 1988-06-28 Seiko Epson Corp 複合型磁気ヘツド
JPH01189020A (ja) * 1988-01-22 1989-07-28 Hitachi Metals Ltd 浮上型複合磁気ヘッド
JPH06101090B2 (ja) * 1988-01-28 1994-12-12 日立金属株式会社 浮上型複合磁気ヘッド

Also Published As

Publication number Publication date
DE69120457T2 (de) 1997-01-23
EP0451871A2 (de) 1991-10-16
EP0451871B1 (de) 1996-06-26
EP0451871A3 (en) 1992-12-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee