NL9100192A - Magneetkop. - Google Patents

Magneetkop. Download PDF

Info

Publication number
NL9100192A
NL9100192A NL9100192A NL9100192A NL9100192A NL 9100192 A NL9100192 A NL 9100192A NL 9100192 A NL9100192 A NL 9100192A NL 9100192 A NL9100192 A NL 9100192A NL 9100192 A NL9100192 A NL 9100192A
Authority
NL
Netherlands
Prior art keywords
layer
metallic material
magnetic
magnetic head
coating
Prior art date
Application number
NL9100192A
Other languages
English (en)
Dutch (nl)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Priority to NL9100192A priority Critical patent/NL9100192A/nl
Priority to US07/688,016 priority patent/US5210668A/en
Priority to EP92200249A priority patent/EP0498493B1/fr
Priority to DE59205886T priority patent/DE59205886D1/de
Priority to JP4017645A priority patent/JPH0573829A/ja
Publication of NL9100192A publication Critical patent/NL9100192A/nl

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
    • G11B5/23—Gap features
    • G11B5/232—Manufacture of gap
    • 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)
NL9100192A 1991-02-04 1991-02-04 Magneetkop. NL9100192A (nl)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL9100192A NL9100192A (nl) 1991-02-04 1991-02-04 Magneetkop.
US07/688,016 US5210668A (en) 1991-02-04 1991-04-19 Magnetic head having soft-magnetic material cladded core limb faces
EP92200249A EP0498493B1 (fr) 1991-02-04 1992-01-29 Tête magnétique
DE59205886T DE59205886D1 (de) 1991-02-04 1992-01-29 Magnetkopf
JP4017645A JPH0573829A (ja) 1991-02-04 1992-02-03 磁気ヘツド

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9100192 1991-02-04
NL9100192A NL9100192A (nl) 1991-02-04 1991-02-04 Magneetkop.

Publications (1)

Publication Number Publication Date
NL9100192A true NL9100192A (nl) 1992-09-01

Family

ID=19858824

Family Applications (1)

Application Number Title Priority Date Filing Date
NL9100192A NL9100192A (nl) 1991-02-04 1991-02-04 Magneetkop.

Country Status (5)

Country Link
US (1) US5210668A (fr)
EP (1) EP0498493B1 (fr)
JP (1) JPH0573829A (fr)
DE (1) DE59205886D1 (fr)
NL (1) NL9100192A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2933491B2 (ja) * 1993-10-04 1999-08-16 松下電器産業株式会社 磁気ヘッドの製造方法
JP3707166B2 (ja) * 1996-01-29 2005-10-19 ソニー株式会社 磁気ヘッド
US5978186A (en) * 1996-03-14 1999-11-02 Matsushita Electric Industrial Co., Ltd. Magnetic head and reproducing apparatus with head having central core with winding thereabout and wire therethrough
DE10057847A1 (de) * 2000-11-22 2002-05-29 Fujitsu Siemens Computers Gmbh Kommunikationseinheit
US7500302B2 (en) * 2005-04-11 2009-03-10 Hitachi Global Storage Technologies, Netherlands B.V. Process for fabricating a magnetic recording head with a laminated write gap
US7525760B2 (en) * 2005-04-11 2009-04-28 Hitachi Global Storage Technologies B.V. Laminated write gap to improve writer performance

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5345221A (en) * 1976-10-05 1978-04-22 Pioneer Electronic Corp Magnetic head
EP0273496B1 (fr) * 1986-12-03 1991-04-10 Koninklijke Philips Electronics N.V. Tête magnétique comportant un entrefer en matériau dur électrochimiquement inerte
US4780779A (en) * 1987-11-19 1988-10-25 Ampex Corporation Laminated sendust metal-in-gap video head
JPH0258714A (ja) * 1988-08-23 1990-02-27 Nippon Mining Co Ltd 磁気ヘッド
US4942658A (en) * 1988-11-30 1990-07-24 Magnetic Peripherals Inc. Method for manufacturing a magnetic head core with a flux gap having a precisely controlled length
US5001589A (en) * 1989-05-31 1991-03-19 Seagate Technology, Inc. Tungsten and tantalum diffusion barriers for Metal-In-Gap magnetic heads

Also Published As

Publication number Publication date
EP0498493A1 (fr) 1992-08-12
JPH0573829A (ja) 1993-03-26
EP0498493B1 (fr) 1996-04-03
US5210668A (en) 1993-05-11
DE59205886D1 (de) 1996-05-09

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Legal Events

Date Code Title Description
A1B A search report has been drawn up
BV The patent application has lapsed