FR1073924A - Tête pour enregistrement magnétique perpendiculaire - Google Patents

Tête pour enregistrement magnétique perpendiculaire

Info

Publication number
FR1073924A
FR1073924A FR1073924DA FR1073924A FR 1073924 A FR1073924 A FR 1073924A FR 1073924D A FR1073924D A FR 1073924DA FR 1073924 A FR1073924 A FR 1073924A
Authority
FR
France
Prior art keywords
head
magnetic recording
perpendicular magnetic
recording
magnetic
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
Application number
Other languages
English (en)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston 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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR1073924A publication Critical patent/FR1073924A/fr
Expired 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • 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
    • 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
    • G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
    • 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
    • G11B5/17—Construction or disposition of windings
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
FR1073924D 1951-06-09 1952-06-09 Tête pour enregistrement magnétique perpendiculaire Expired FR1073924A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US230775A US2680156A (en) 1951-06-09 1951-06-09 Magnetic head for perpendicular recording

Publications (1)

Publication Number Publication Date
FR1073924A true FR1073924A (fr) 1954-09-30

Family

ID=22866533

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1073924D Expired FR1073924A (fr) 1951-06-09 1952-06-09 Tête pour enregistrement magnétique perpendiculaire

Country Status (3)

Country Link
US (1) US2680156A (fr)
BE (1) BE511951A (fr)
FR (1) FR1073924A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2490847A1 (fr) * 1980-09-22 1982-03-26 Cii Honeywell Bull Element d'enregistrement magnetique

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2838614A (en) * 1952-05-12 1958-06-10 North American Aviation Inc Magnetic recording head
US2927973A (en) * 1955-08-26 1960-03-08 Ibm Magnetic transducer
US2997695A (en) * 1956-04-06 1961-08-22 Robert L Conger Magnetic core storage device
US2959643A (en) * 1957-03-29 1960-11-08 Rca Corp Magnetic erase head
US3103665A (en) * 1959-12-28 1963-09-10 Magnavox Co Electro-magnetic transducer
JPS55125536A (en) * 1979-03-16 1980-09-27 Fuji Photo Film Co Ltd Recording medium for vertical magnetic record
US6665136B2 (en) 2001-08-28 2003-12-16 Seagate Technology Llc Recording heads using magnetic fields generated locally from high current densities in a thin film wire
US6917493B2 (en) * 2001-08-28 2005-07-12 Seagate Technology Llc Ampere head with perpendicular magnetic field
WO2003021576A1 (fr) * 2001-08-28 2003-03-13 Seagate Technology Llc Tetes d'enregistrement utilisant des champs magnetiques produits localement a partir de densites de courant elevees dans un fil en couche mince

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE612450C (de) * 1933-02-05 1935-04-25 Willy Hornauer Einrichtung zur Wiedergabe von Magnetogrammen
US2247847A (en) * 1937-07-23 1941-07-01 Pfleumer Fritz Recording and reproducing device for magnetic sound writing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2490847A1 (fr) * 1980-09-22 1982-03-26 Cii Honeywell Bull Element d'enregistrement magnetique

Also Published As

Publication number Publication date
BE511951A (fr)
US2680156A (en) 1954-06-01

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