ATE151555T1 - Magnetkopf mit kernteil aus polykristallinem mnzn-ferroferrit - Google Patents

Magnetkopf mit kernteil aus polykristallinem mnzn-ferroferrit

Info

Publication number
ATE151555T1
ATE151555T1 AT92203306T AT92203306T ATE151555T1 AT E151555 T1 ATE151555 T1 AT E151555T1 AT 92203306 T AT92203306 T AT 92203306T AT 92203306 T AT92203306 T AT 92203306T AT E151555 T1 ATE151555 T1 AT E151555T1
Authority
AT
Austria
Prior art keywords
ferroferrite
core part
part made
magnet head
mnzn
Prior art date
Application number
AT92203306T
Other languages
English (en)
Inventor
Mark Thomas Johnson
Freddy Roozeboom
Delden Martinus Hermanus W Van
Holstlaan Prof
Original Assignee
Philips Electronics 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 Electronics Nv filed Critical Philips Electronics Nv
Application granted granted Critical
Publication of ATE151555T1 publication Critical patent/ATE151555T1/de

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
    • G11B5/1274—Structure or manufacture of heads, e.g. inductive with "composite" cores, i.e. cores composed in some parts of magnetic particles and in some other parts of magnetic metal layers
    • 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
    • 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
    • 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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3103—Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing
    • 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
    • G11B5/008—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires
    • G11B5/00813—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes
    • 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
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
  • Soft Magnetic Materials (AREA)
AT92203306T 1991-11-04 1992-10-28 Magnetkopf mit kernteil aus polykristallinem mnzn-ferroferrit ATE151555T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP91202856 1991-11-04

Publications (1)

Publication Number Publication Date
ATE151555T1 true ATE151555T1 (de) 1997-04-15

Family

ID=8207980

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92203306T ATE151555T1 (de) 1991-11-04 1992-10-28 Magnetkopf mit kernteil aus polykristallinem mnzn-ferroferrit

Country Status (5)

Country Link
US (1) US6088198A (de)
JP (1) JPH05217108A (de)
KR (1) KR100260807B1 (de)
AT (1) ATE151555T1 (de)
DE (1) DE69218884T2 (de)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54121108A (en) * 1978-03-13 1979-09-20 Akai Electric Mnnzn ferrite monocrystal magnetic head and method of fabricating same
JPS5622207A (en) * 1979-07-31 1981-03-02 Matsushita Electric Ind Co Ltd Magnetic head
NL8200480A (nl) * 1982-02-09 1983-09-01 Philips Nv Magneetkop.
JPS60138708A (ja) * 1983-12-27 1985-07-23 Ngk Insulators Ltd 磁気ヘッド用コアの製造法
US4521323A (en) * 1984-06-27 1985-06-04 Matsushita Electric Industrial Co., Ltd. Polycrystalline ferrite and a magnetic head using the same
KR900001140B1 (ko) * 1984-10-02 1990-02-27 가부시끼가이샤 히다찌세이사꾸쇼 박막자기헤드 슬라이더 및 그 재료의 제조방법
JPH0622053B2 (ja) * 1986-04-23 1994-03-23 住友特殊金属株式会社 基板材料
US5049454A (en) * 1988-07-04 1991-09-17 U.S. Philips Corporation Monocrystalline MnZn-ferroferrite material having a high content of Zn, and a magnetic head manufactured from said material
JP2799238B2 (ja) * 1990-10-23 1998-09-17 信越化学工業株式会社 Ｍｎ―Ｚｎフェライト接合体の製造方法

Also Published As

Publication number Publication date
KR930010863A (ko) 1993-06-23
JPH05217108A (ja) 1993-08-27
US6088198A (en) 2000-07-11
KR100260807B1 (ko) 2000-07-01
DE69218884T2 (de) 1997-10-16
DE69218884D1 (de) 1997-05-15

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee