FR1135708A - Tête d'enregistrement magnétique en ferrite - Google Patents

Tête d'enregistrement magnétique en ferrite

Info

Publication number
FR1135708A
FR1135708A FR1135708DA FR1135708A FR 1135708 A FR1135708 A FR 1135708A FR 1135708D A FR1135708D A FR 1135708DA FR 1135708 A FR1135708 A FR 1135708A
Authority
FR
France
Prior art keywords
recording head
magnetic ferrite
ferrite recording
magnetic
head
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of FR1135708A publication Critical patent/FR1135708A/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
    • G11B5/127—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/49055—Fabricating head structure or component thereof with bond/laminating preformed parts, at least two magnetic
FR1135708D 1955-08-05 1955-11-22 Tête d'enregistrement magnétique en ferrite Expired FR1135708A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2945919X 1955-08-05

Publications (1)

Publication Number Publication Date
FR1135708A true FR1135708A (fr) 1957-05-03

Family

ID=8001998

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1135708D Expired FR1135708A (fr) 1955-08-05 1955-11-22 Tête d'enregistrement magnétique en ferrite

Country Status (2)

Country Link
US (1) US2945919A (fr)
FR (1) FR1135708A (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1424431C3 (de) * 1959-10-02 1974-07-11 N.V. Philips' Gloeilampenfabrieken, Eindhoven (Niederlande) Verfahren zur Herstellung eines Magnetkopfes
US3079470A (en) * 1959-12-21 1963-02-26 Armour Res Found Magnetic transducer head
US3249700A (en) * 1960-09-27 1966-05-03 Philips Corp Magnetic heads with means for preventing side erosion
US3188400A (en) * 1961-01-09 1965-06-08 Ampex Ferrite coating
US3249987A (en) * 1961-03-30 1966-05-10 Philips Corp Method of manufacturing magnetic heads
US3316516A (en) * 1962-04-17 1967-04-25 English Electric Co Ltd Variable q transducer
JPS519572B1 (fr) * 1970-10-31 1976-03-27
US4188649A (en) * 1977-12-05 1980-02-12 Ibm Corporation Magnetic head having a jagged-edged gap, and method for producing such head

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2594414A (en) * 1948-02-10 1952-04-29 Charles F E Garreau Head for magnetic recorders
US2676393A (en) * 1949-03-29 1954-04-27 Leon J Lieberman Process for making clad metal
US2715659A (en) * 1950-10-14 1955-08-16 Ibuka Masaru Magnetic heads for magnetic recording and reproducing apparatus
US2711945A (en) * 1953-03-04 1955-06-28 Clevite Corp Magnetic transducer head for high frequency signals
US2836881A (en) * 1953-06-03 1958-06-03 Librascope Inc Method of making transducer cores

Also Published As

Publication number Publication date
US2945919A (en) 1960-07-19

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