FR2474219B1 - - Google Patents

Info

Publication number
FR2474219B1
FR2474219B1 FR8001178A FR8001178A FR2474219B1 FR 2474219 B1 FR2474219 B1 FR 2474219B1 FR 8001178 A FR8001178 A FR 8001178A FR 8001178 A FR8001178 A FR 8001178A FR 2474219 B1 FR2474219 B1 FR 2474219B1
Authority
FR
France
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
Application number
FR8001178A
Other languages
French (fr)
Other versions
FR2474219A1 (fr
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.)
Eurofarad EFD SAS
Original Assignee
Eurofarad EFD SAS
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 Eurofarad EFD SAS filed Critical Eurofarad EFD SAS
Priority to FR8001178A priority Critical patent/FR2474219A1/fr
Publication of FR2474219A1 publication Critical patent/FR2474219A1/fr
Application granted granted Critical
Publication of FR2474219B1 publication Critical patent/FR2474219B1/fr
Granted 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
    • G11B5/255—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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
FR8001178A 1980-01-21 1980-01-21 Tete magnetique en ferrite avec enduit protecteur Granted FR2474219A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8001178A FR2474219A1 (fr) 1980-01-21 1980-01-21 Tete magnetique en ferrite avec enduit protecteur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8001178A FR2474219A1 (fr) 1980-01-21 1980-01-21 Tete magnetique en ferrite avec enduit protecteur

Publications (2)

Publication Number Publication Date
FR2474219A1 FR2474219A1 (fr) 1981-07-24
FR2474219B1 true FR2474219B1 (enrdf_load_stackoverflow) 1984-12-21

Family

ID=9237681

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8001178A Granted FR2474219A1 (fr) 1980-01-21 1980-01-21 Tete magnetique en ferrite avec enduit protecteur

Country Status (1)

Country Link
FR (1) FR2474219A1 (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2622338B1 (fr) * 1987-10-27 1990-01-26 Thomson Csf Tete magnetique d'enregistrement-lecture a couche anti-abrasion et procede de realisation
FR2634051B1 (fr) * 1988-07-05 1995-02-24 Thomson Csf Dispositif en materiau magnetique a couche anti-usure et applications a une tete d'enregistrement-lecture et a un disque d'enregistrement

Also Published As

Publication number Publication date
FR2474219A1 (fr) 1981-07-24

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Legal Events

Date Code Title Description
ST Notification of lapse