NL112518C - - Google Patents

Info

Publication number
NL112518C
NL112518C NL112518DA NL112518C NL 112518 C NL112518 C NL 112518C NL 112518D A NL112518D A NL 112518DA NL 112518 C NL112518 C NL 112518C
Authority
NL
Netherlands
Application number
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.)
Publication of NL112518C publication Critical patent/NL112518C/xx

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
    • G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
    • 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
    • G11B5/1272—Assembling or shaping of elements
    • 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
    • G11B5/1335—Assembling or shaping of elements
    • 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
    • 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
    • G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track
    • 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
    • Y10T29/49048—Machining magnetic material [e.g., grinding, etching, polishing]
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
NL112518D 1959-09-05 NL112518C (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL243051 1959-09-05

Publications (1)

Publication Number Publication Date
NL112518C true NL112518C (it)

Family

ID=19751904

Family Applications (3)

Application Number Title Priority Date Filing Date
NL243051D NL243051A (it) 1959-09-05
NL243049D NL243049A (it) 1959-09-05
NL112518D NL112518C (it) 1959-09-05

Family Applications Before (2)

Application Number Title Priority Date Filing Date
NL243051D NL243051A (it) 1959-09-05
NL243049D NL243049A (it) 1959-09-05

Country Status (5)

Country Link
US (1) US3237280A (it)
DE (2) DE1176712B (it)
ES (1) ES260772A1 (it)
GB (1) GB945997A (it)
NL (3) NL112518C (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3700827A (en) * 1970-01-31 1972-10-24 Nippon Electric Co Magnetic head including thin magnetic film separated by a gap spacer
US4264939A (en) * 1978-05-30 1981-04-28 Victor Company Of Japan, Limited Magnetic erasing head
US4870520A (en) * 1986-05-29 1989-09-26 Magnetic Peripherals Inc. Read/write head with side winding slot

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR884881A (fr) * 1941-08-15 1943-08-30 Weber Walter Procédé et dispositif d'enregistrements sonores magnétiques en vue de la reproduction stéréophonique
CH252162A (de) * 1946-01-11 1947-12-15 Beka St Aubin Ag Sprechkopf an Magnettongeräten.
US2810020A (en) * 1950-08-12 1957-10-15 Klangfilm Gmbh Magnetic head for sound-recording apparatus and the like
GB721755A (en) * 1951-06-08 1955-01-12 Clevite Corp Magnetic transducer head and method of making same
US2915812A (en) * 1953-04-21 1959-12-08 Rca Corp Method of constructing magnetic heads
GB772311A (en) * 1954-01-29 1957-04-10 Ibm Magnetic transducer
DE1784946A1 (it) * 1955-08-25
US2967750A (en) * 1956-04-04 1961-01-10 Sonotone Corp Magnetic record transducing heads
FR1213217A (fr) * 1959-01-06 1960-03-29 Bull Sa Machines Tête magnétique multiple

Also Published As

Publication number Publication date
US3237280A (en) 1966-03-01
GB945997A (en) 1964-01-08
DE1176712B (de) 1964-08-27
NL243051A (it)
NL243049A (it)
ES260772A1 (es) 1960-11-16
DE1140357B (de) 1962-11-29

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