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FR1032056A - Magnetic head for magnetographic sound recording - Google Patents

Magnetic head for magnetographic sound recording

Info

Publication number
FR1032056A
FR1032056A FR1032056DA FR1032056A FR 1032056 A FR1032056 A FR 1032056A FR 1032056D A FR1032056D A FR 1032056DA FR 1032056 A FR1032056 A FR 1032056A
Authority
FR
France
Prior art keywords
magnetographic
magnetic head
sound recording
sound
recording
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
French (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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik 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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Application granted granted Critical
Publication of FR1032056A publication Critical patent/FR1032056A/en
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
    • G11B5/133—Structure or manufacture of heads, e.g. inductive with cores composed of particles, e.g. with dust cores, with ferrite cores with cores composed of isolated magnetic particles
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Magnetic Heads (AREA)
FR1032056D 1950-02-06 1951-02-05 Magnetic head for magnetographic sound recording Expired FR1032056A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE287606X 1950-02-06

Publications (1)

Publication Number Publication Date
FR1032056A true FR1032056A (en) 1953-06-29

Family

ID=6059352

Family Applications (2)

Application Number Title Priority Date Filing Date
FR1032056D Expired FR1032056A (en) 1950-02-06 1951-02-05 Magnetic head for magnetographic sound recording
FR62575D Expired FR62575E (en) 1950-02-06 1952-03-11 Magnetic head for magnetographic sound recording

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR62575D Expired FR62575E (en) 1950-02-06 1952-03-11 Magnetic head for magnetographic sound recording

Country Status (5)

Country Link
US (1) US2809237A (en)
CH (1) CH287606A (en)
FR (2) FR1032056A (en)
GB (1) GB717573A (en)
IT (1) IT472736A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2933565A (en) * 1953-04-15 1960-04-19 Siemens Ag Magnetic transducers
US3268987A (en) * 1959-05-11 1966-08-30 Adams Edmond Method of making transducer head cores
US3079470A (en) * 1959-12-21 1963-02-26 Armour Res Found Magnetic transducer head
JPS53127707A (en) * 1977-04-13 1978-11-08 Nippon Gakki Seizo Kk Production of laminated type head core
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 (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2452529A (en) * 1941-10-24 1948-10-26 Hartford Nat Bank & Trust Co Magnet core
US2452530A (en) * 1943-05-15 1948-10-26 Hartford Nat Bank & Trust Co Magnetic core
US2452531A (en) * 1943-05-31 1948-10-26 Hartford Nat Bank & Trust Co Process of manufacturing a magnetic material and magnetic core
US2493742A (en) * 1945-08-22 1950-01-10 Brush Dev Co Magnetic transducing core for magnetic record transducers
CH274288A (en) * 1948-11-12 1951-03-31 Alexander Dr Egerer Karl Magnetic sound recording and reproducing head for tape-shaped sound carriers.
US2536260A (en) * 1948-12-30 1951-01-02 Rca Corp Device for reproducing magnetic records
US2592652A (en) * 1950-02-18 1952-04-15 Bell Telephone Labor Inc Magnetic transducer head

Also Published As

Publication number Publication date
FR62575E (en) 1955-06-15
US2809237A (en) 1957-10-08
IT472736A (en)
GB717573A (en) 1954-10-27
CH287606A (en) 1952-12-15

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