BE894201A - Tete d'enregistrement magnetique a permeabilite differentielle et a concentration de champ - Google Patents

Tete d'enregistrement magnetique a permeabilite differentielle et a concentration de champ

Info

Publication number
BE894201A
BE894201A BE0/208875A BE208875A BE894201A BE 894201 A BE894201 A BE 894201A BE 0/208875 A BE0/208875 A BE 0/208875A BE 208875 A BE208875 A BE 208875A BE 894201 A BE894201 A BE 894201A
Authority
BE
Belgium
Prior art keywords
recording head
magnetic recording
field concentration
differential permeability
permeability
Prior art date
Application number
BE0/208875A
Other languages
English (en)
Inventor
G D Springer
Original Assignee
Ferix Corp
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 Ferix Corp filed Critical Ferix Corp
Publication of BE894201A publication Critical patent/BE894201A/fr

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G19/00—Processes using magnetic patterns; Apparatus therefor, i.e. magnetography

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Magnetic Heads (AREA)
BE0/208875A 1982-05-26 1982-08-25 Tete d'enregistrement magnetique a permeabilite differentielle et a concentration de champ BE894201A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US38192282A 1982-05-26 1982-05-26

Publications (1)

Publication Number Publication Date
BE894201A true BE894201A (fr) 1983-02-25

Family

ID=23506870

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/208875A BE894201A (fr) 1982-05-26 1982-08-25 Tete d'enregistrement magnetique a permeabilite differentielle et a concentration de champ

Country Status (10)

Country Link
JP (1) JPS58211178A (fr)
BE (1) BE894201A (fr)
BR (1) BR8205722A (fr)
CA (1) CA1189969A (fr)
DE (1) DE3302172A1 (fr)
FR (1) FR2527820A1 (fr)
GB (1) GB2122949B (fr)
IT (1) IT1209905B (fr)
NL (1) NL8300256A (fr)
SE (1) SE8204518L (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4494125A (en) * 1982-05-26 1985-01-15 Ferix Corporation Differential-permeability field-concentrating magnetic read/write head
US7538977B2 (en) * 2004-04-30 2009-05-26 Hitachi Global Storage Technologies B.V. Method and apparatus for providing diamagnetic flux focusing in a storage device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL215946A (fr) * 1956-04-03
GB1344890A (en) * 1971-08-21 1974-01-23 Ibm Electromagnetic transducers
DE2520581C3 (de) * 1975-05-09 1980-09-04 Kienzle Apparate Gmbh, 7730 Villingen-Schwenningen Anordnung zum loschbaren Aufzeichnen von Meßgrößen
DE2715103C2 (de) * 1977-04-04 1985-05-02 Wang Laboratories, Inc., Lowell, Mass. Magnet-Druckkopf einer Druckvorrichtung
US4414554A (en) * 1980-07-21 1983-11-08 Ferix Corporation Magnetic imaging apparatus

Also Published As

Publication number Publication date
JPS58211178A (ja) 1983-12-08
NL8300256A (nl) 1983-12-16
DE3302172A1 (de) 1983-12-01
CA1189969A (fr) 1985-07-02
FR2527820A1 (fr) 1983-12-02
SE8204518D0 (sv) 1982-07-30
SE8204518L (sv) 1983-11-27
GB2122949B (en) 1985-10-23
IT8249149A0 (it) 1982-09-21
IT1209905B (it) 1989-08-30
GB2122949A (en) 1984-01-25
BR8205722A (pt) 1984-04-17

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: FERIX CORP.

Effective date: 19850831