AT357788B - Magnetkopf und verfahren zum herstellen eines solchen magnetkopfes - Google Patents

Magnetkopf und verfahren zum herstellen eines solchen magnetkopfes

Info

Publication number
AT357788B
AT357788B AT690076A AT690076A AT357788B AT 357788 B AT357788 B AT 357788B AT 690076 A AT690076 A AT 690076A AT 690076 A AT690076 A AT 690076A AT 357788 B AT357788 B AT 357788B
Authority
AT
Austria
Prior art keywords
magnetic head
producing
magnetic
head
Prior art date
Application number
AT690076A
Other languages
English (en)
Other versions
ATA690076A (de
Original Assignee
Ampex
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 Ampex filed Critical Ampex
Publication of ATA690076A publication Critical patent/ATA690076A/de
Application granted granted Critical
Publication of AT357788B publication Critical patent/AT357788B/de

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
    • G11B5/1871—Shaping or contouring of the transducing or guiding surface
    • 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
    • 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
    • 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
    • Y10T29/49057—Using glass bonding material

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
AT690076A 1975-09-22 1976-09-17 Magnetkopf und verfahren zum herstellen eines solchen magnetkopfes AT357788B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/615,532 US4115827A (en) 1975-09-22 1975-09-22 Magnetic transducer for narrow track recording and playback

Publications (2)

Publication Number Publication Date
ATA690076A ATA690076A (de) 1979-12-15
AT357788B true AT357788B (de) 1980-07-25

Family

ID=24465803

Family Applications (1)

Application Number Title Priority Date Filing Date
AT690076A AT357788B (de) 1975-09-22 1976-09-17 Magnetkopf und verfahren zum herstellen eines solchen magnetkopfes

Country Status (11)

Country Link
US (1) US4115827A (de)
JP (1) JPS5253412A (de)
AT (1) AT357788B (de)
BE (1) BE845281A (de)
CA (1) CA1079398A (de)
DE (1) DE2642643C2 (de)
FR (1) FR2325140A1 (de)
GB (1) GB1546207A (de)
IT (1) IT1074132B (de)
NL (1) NL170988C (de)
SU (2) SU1075998A3 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3322859A1 (de) * 1982-06-25 1984-01-19 Mitsubishi Denki K.K., Tokyo Verfahren zur herstellung eines zusammengesetzten magnetkopfes und derartiger magnetkopf
EP0128586A1 (de) * 1983-06-13 1984-12-19 Matsushita Electric Industrial Co., Ltd. Magnetkopf

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55157122A (en) * 1979-05-24 1980-12-06 Olympus Optical Co Ltd Magnetic head and production thereof magnetic head
US4325093A (en) * 1979-06-04 1982-04-13 Texas Instruments Incorporated Magnetic head transducer having enhanced signal output and manufacturing method therefor
US4404608A (en) * 1980-02-04 1983-09-13 Sanyo Electric Co., Ltd. Magnetic head with an improved inner core
US4475137A (en) * 1981-05-11 1984-10-02 Sanyo Electric Co., Ltd. Magnetic transducer
JPS5862810A (ja) * 1981-10-08 1983-04-14 Toshiba Corp 垂直磁化型磁気ヘッド
US4697217A (en) * 1982-10-13 1987-09-29 Sanyo Electric Co., Ltd. Magnetic head having a main core of sheet amorphous magnetic material
JPS5984321A (ja) * 1982-11-08 1984-05-16 Nakamichi Corp 磁気ヘツド
US4602307A (en) * 1983-03-11 1986-07-22 Mitsubishi Denki Kabushiki Kaisha Compound type magnetic head
DE3319437C2 (de) * 1983-05-28 1985-04-04 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co KG, 8510 Fürth Magnetkopf und Verfahren zu seiner Herstellung
DE3433750A1 (de) * 1984-09-14 1986-05-22 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co KG, 8510 Fürth Magnetkopf und verfahren zu seiner herstellung
JPS61110317A (ja) * 1984-11-01 1986-05-28 Sanyo Electric Co Ltd 磁気ヘツド
AU6032494A (en) * 1993-02-12 1994-08-29 Data Card Corporation Magnetic stripe read/write head
US5617273A (en) * 1995-06-07 1997-04-01 International Business Machines Corporation Thin film slider with protruding R/W element formed by chemical-mechanical polishing
US6198609B1 (en) 1998-11-09 2001-03-06 Read-Rite Corporation CPP Magnetoresistive device with reduced edge effect and method for making same
US8385018B2 (en) 2009-11-03 2013-02-26 International Business Machines Corporation Magnetic writer having multiple gaps with more uniform magnetic fields across the gaps

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL112519C (de) * 1959-09-05
US3354540A (en) * 1961-04-07 1967-11-28 Philips Corp Method of manufacturing reliable magnetic heads having accurately predetermined dimensions
US3303292A (en) * 1963-02-25 1967-02-07 Ampex Magnetic head assembly
NL146311B (nl) * 1965-04-22 1975-06-16 Philips Nv Werkwijze voor het vervaardigen van een dubbelspleets-magneetkop en dubbelspleets-magneetkop volgens deze werkwijze vervaardigd.
FR1500622A (fr) * 1965-11-12 1967-11-03 Grundig E M V Elktro Mechanisc Tête magnétique pour pistes de faible largeur
US3597836A (en) * 1968-05-21 1971-08-10 Matsushita Electric Ind Co Ltd Method of manufacturing a multichannel magnetic head
US3613228A (en) * 1969-07-02 1971-10-19 Ibm Manufacture of multielement magnetic head assemblies
US3845550A (en) * 1972-06-23 1974-11-05 Ampex Method of manufacturing a magnetic head
US3846840A (en) * 1973-08-10 1974-11-05 Ibm Read/write and longitudinal edge erase head assembly having multiple similarly shaped layers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3322859A1 (de) * 1982-06-25 1984-01-19 Mitsubishi Denki K.K., Tokyo Verfahren zur herstellung eines zusammengesetzten magnetkopfes und derartiger magnetkopf
EP0128586A1 (de) * 1983-06-13 1984-12-19 Matsushita Electric Industrial Co., Ltd. Magnetkopf

Also Published As

Publication number Publication date
NL7609924A (nl) 1977-03-24
JPS5253412A (en) 1977-04-30
BE845281A (fr) 1976-12-16
IT1074132B (it) 1985-04-17
FR2325140A1 (fr) 1977-04-15
SU1075998A3 (ru) 1984-02-23
ATA690076A (de) 1979-12-15
FR2325140B1 (de) 1980-09-05
US4115827A (en) 1978-09-19
DE2642643C2 (de) 1982-12-16
NL170988C (nl) 1983-01-17
DE2642643A1 (de) 1977-04-14
GB1546207A (en) 1979-05-23
CA1079398A (en) 1980-06-10
NL170988B (nl) 1982-08-16
SU1095884A3 (ru) 1984-05-30

Similar Documents

Publication Publication Date Title
AT351820B (de) Verfahren zum herstellen eines mit information beschriebenen informationsspeichers sowie informationsspeicher
AT357788B (de) Magnetkopf und verfahren zum herstellen eines solchen magnetkopfes
AT360763B (de) Verfahren zum behandeln eines gegenstandes
AT345878B (de) Verfahren und vorrichtung zum abschnittsweisen auswechseln eines gleises
AT347410B (de) Verfahren zum herstellen eines oberflaechen- aktiven produktes
AT372195B (de) Informationstraeger und verfahren zum herstellen eines informationstraegers
AT345117B (de) Verfahren und vorrichtung zum herstellen eines luftreifens
AT351797B (de) Verfahren zum herstellen einer rotierend antreibbaren magnetkopfanordnung und nach einem solchen verfahren hergestellte magnetkopf- anordnung
AT335922B (de) Verfahren zum herstellen eines druckpfahles
AT349346B (de) Verfahren und form zum herstellen eines luftreifens
DD126915A5 (de) Verfahren und einrichtung zum aushaerten von giesserei-kernen
AT357007B (de) Verfahren zum herstellen eines kugelgelenkes
ATA835176A (de) Verfahren zum herstellen von 1-phenyl-cis-2-hydroxymethyl-1-r-1-cyclohexanol
DD127996A5 (de) Verfahren und vorrichtung zum kontinuierlichen erzeugen eines kupferstrangs
DD131627A5 (de) Verfahren zum herstellen eines kugelgelenkes
ATA355676A (de) Verfahren und vorrichtung zum herstellung von qualitaetsstahl
ATA554578A (de) Original eines informationstraegers und verfahren zum herstellen des orginals
AT360686B (de) Verfahren und vorrichtung zum herstellen eines gussstranges
AT352657B (de) Verfahren und vorrichtung zum herstellen eines reissverschlusses
ATA658876A (de) Aus vorgearbeiteten teilen zusammengesetzter schieber und verfahren zum herstellen eines ge- haeuses hiefuer
AT366248B (de) Verfahren zum herstellen eines reissverschlussbandes und reissverschlusstraeger
AT353564B (de) Verfahren zum herstellen eines feststoffge- misches
DD128559A5 (de) Verfahren und vorrichtung zum herstellen eines hohlkoerpers
AT370709B (de) Verfahren zum herstellen eines neutronensicheren betons
AT363975B (de) Verfahren zum herstellen elektromagnetischer siliziumstaehle

Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee