GB717573A - Improvements in magnetic sound recording heads - Google Patents

Improvements in magnetic sound recording heads

Info

Publication number
GB717573A
GB717573A GB2619/51A GB261951A GB717573A GB 717573 A GB717573 A GB 717573A GB 2619/51 A GB2619/51 A GB 2619/51A GB 261951 A GB261951 A GB 261951A GB 717573 A GB717573 A GB 717573A
Authority
GB
United Kingdom
Prior art keywords
sound recording
recording heads
magnetic sound
magnetic
feb
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
GB2619/51A
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.)
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
Publication of GB717573A publication Critical patent/GB717573A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127Structure or manufacture of heads, e.g. inductive
    • G11B5/133Structure 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127Structure or manufacture of heads, e.g. inductive

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
GB2619/51A 1950-02-06 1951-02-02 Improvements in magnetic sound recording heads Expired GB717573A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB717573A true GB717573A (en) 1954-10-27

Family

ID=6059352

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2619/51A Expired GB717573A (en) 1950-02-06 1951-02-02 Improvements in magnetic sound recording heads

Country Status (5)

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

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 (de) * 1948-11-12 1951-03-31 Alexander Dr Egerer Karl Magnetton-Aufzeichnungs- und Wiedergabekopf für bandförmige Tonträger.
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 (fr) 1955-06-15
IT472736A (de)
FR1032056A (fr) 1953-06-29
CH287606A (de) 1952-12-15
US2809237A (en) 1957-10-08

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