DE68923952D1 - Magnetischer Wiedergabe-/Aufzeichnungskopf. - Google Patents

Magnetischer Wiedergabe-/Aufzeichnungskopf.

Info

Publication number
DE68923952D1
DE68923952D1 DE68923952T DE68923952T DE68923952D1 DE 68923952 D1 DE68923952 D1 DE 68923952D1 DE 68923952 T DE68923952 T DE 68923952T DE 68923952 T DE68923952 T DE 68923952T DE 68923952 D1 DE68923952 D1 DE 68923952D1
Authority
DE
Germany
Prior art keywords
recording head
magnetic
magnetic playback
active surface
magnetic material
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
DE68923952T
Other languages
English (en)
Other versions
DE68923952T2 (de
Inventor
Paul-Louis Meunier
Jean-Marc Coutellier
Manijeh Razeghi
Jean-Marie Mackowski
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Application granted granted Critical
Publication of DE68923952D1 publication Critical patent/DE68923952D1/de
Publication of DE68923952T2 publication Critical patent/DE68923952T2/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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
    • G11B5/727—Inorganic carbon protective coating, e.g. graphite, diamond like carbon or doped carbon
    • 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
    • G11B5/255—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for protection against wear

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Thin Magnetic Films (AREA)
DE68923952T 1988-07-05 1989-07-04 Magnetischer Wiedergabe-/Aufzeichnungskopf. Expired - Fee Related DE68923952T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8809068A FR2634051B1 (fr) 1988-07-05 1988-07-05 Dispositif en materiau magnetique a couche anti-usure et applications a une tete d'enregistrement-lecture et a un disque d'enregistrement
PCT/FR1989/000346 WO1990000793A1 (fr) 1988-07-05 1989-07-04 Dispositif en materiau magnetique a couche anti-usure et applications a une tete d'enregistrement-lecture et a un disque d'enregistrement

Publications (2)

Publication Number Publication Date
DE68923952D1 true DE68923952D1 (de) 1995-09-28
DE68923952T2 DE68923952T2 (de) 1996-01-11

Family

ID=9368074

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68923952T Expired - Fee Related DE68923952T2 (de) 1988-07-05 1989-07-04 Magnetischer Wiedergabe-/Aufzeichnungskopf.

Country Status (7)

Country Link
EP (2) EP0350412A1 (de)
JP (2) JPH03500466A (de)
KR (1) KR900702507A (de)
AT (1) ATE126918T1 (de)
DE (1) DE68923952T2 (de)
FR (1) FR2634051B1 (de)
WO (1) WO1990000793A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69117916T2 (de) * 1990-12-27 1996-10-02 Ibm Magnetkopfgleitstück und sein Herstellungsverfahren
EP0590701B1 (de) * 1992-08-03 1997-02-05 Koninklijke Philips Electronics N.V. Magnetkopf mit verschleissbeständiger Schicht und dessen Herstellungsverfahren
CN1125439C (zh) * 1994-07-13 2003-10-22 三星电子株式会社 制造磁头的方法
US5901021A (en) * 1995-05-19 1999-05-04 Sanyo Electric Co., Ltd. Thin-film magnetic head
DE19733273C2 (de) * 1997-08-01 2001-08-16 Verschleis Technik Dr Ing Hans Verschleißteil

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3594064A (en) * 1969-06-25 1971-07-20 Du Pont Enhanced magneto-optic mirror apparatus
JPS5619518A (en) * 1979-07-25 1981-02-24 Matsushita Electric Ind Co Ltd Magnetic head
JPS5619517A (en) * 1979-07-25 1981-02-24 Matsushita Electric Ind Co Ltd Magnetic head
FR2474219A1 (fr) * 1980-01-21 1981-07-24 Eurofarad Tete magnetique en ferrite avec enduit protecteur
JPS59127214A (ja) * 1983-01-11 1984-07-23 Seiko Epson Corp 磁気ヘツド
JPS59127232A (ja) * 1983-01-11 1984-07-23 Seiko Epson Corp 磁気記録媒体
DE3307776A1 (de) * 1983-03-04 1984-09-06 Siemens AG, 1000 Berlin und 8000 München Aufzeichnungsanordnung fuer einen magnetschichtspeicher
JPS59213030A (ja) * 1983-05-17 1984-12-01 Denki Kagaku Kogyo Kk 磁気記録媒体及びその製法
JPS6029936A (ja) * 1983-07-29 1985-02-15 Denki Kagaku Kogyo Kk 磁気記録媒体およびその製法
JPS60193112A (ja) * 1984-03-15 1985-10-01 Seiko Instr & Electronics Ltd 磁気ヘツド
FR2569072B1 (fr) * 1984-05-25 1988-09-16 Thomson Csf Systeme de lecture magneto-optique
JPS61242323A (ja) * 1985-04-19 1986-10-28 Fuji Electric Co Ltd 磁気記録媒体
JPS62172521A (ja) * 1986-01-24 1987-07-29 Hitachi Maxell Ltd 磁気記録媒体
US4898774A (en) * 1986-04-03 1990-02-06 Komag, Inc. Corrosion and wear resistant magnetic disk
FR2597247B1 (fr) * 1986-04-11 1995-01-27 Thomson Csf Procede de realisation d'une couche de protection mecanique pour tete magnetique d'enregistrement/lecture et tete magnetique d'enregistrement/lecture mettant en oeuvre ce procede
WO1988006334A1 (en) * 1987-02-13 1988-08-25 Akashic Memories Corporation Surface coating for magnetic head

Also Published As

Publication number Publication date
WO1990000793A1 (fr) 1990-01-25
FR2634051B1 (fr) 1995-02-24
EP0380624B1 (de) 1995-08-23
JPH1117U (ja) 1999-02-02
EP0380624A1 (de) 1990-08-08
DE68923952T2 (de) 1996-01-11
FR2634051A1 (fr) 1990-01-12
KR900702507A (ko) 1990-12-07
JPH03500466A (ja) 1991-01-31
ATE126918T1 (de) 1995-09-15
EP0350412A1 (de) 1990-01-10
JP2607241Y2 (ja) 2001-05-28

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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