ATE21293T1 - Mit hilfe von glas verkitteter magnetkopf und verfahren zu dessen herstellung. - Google Patents

Mit hilfe von glas verkitteter magnetkopf und verfahren zu dessen herstellung.

Info

Publication number
ATE21293T1
ATE21293T1 AT83200650T AT83200650T ATE21293T1 AT E21293 T1 ATE21293 T1 AT E21293T1 AT 83200650 T AT83200650 T AT 83200650T AT 83200650 T AT83200650 T AT 83200650T AT E21293 T1 ATE21293 T1 AT E21293T1
Authority
AT
Austria
Prior art keywords
layer
glass
magnetic head
cutted
manufacture
Prior art date
Application number
AT83200650T
Other languages
English (en)
Inventor
Johannes Petrus Maria Damen
Holstlaan
Klaas Prijs
Cornelis Henricus Maria Witmer
With Gijsbertus De
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Application granted granted Critical
Publication of ATE21293T1 publication Critical patent/ATE21293T1/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
    • G11B5/23—Gap features
    • G11B5/235—Selection of material for gap filler
    • 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
    • G11B5/23—Gap features
    • G11B5/232—Manufacture of gap
    • 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
    • Y10T29/49036—Fabricating head structure or component thereof including measuring or testing
    • Y10T29/49039—Fabricating head structure or component thereof including measuring or testing with dual gap materials
    • 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)
AT83200650T 1982-05-19 1983-05-06 Mit hilfe von glas verkitteter magnetkopf und verfahren zu dessen herstellung. ATE21293T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8202059A NL8202059A (nl) 1982-05-19 1982-05-19 Glas gekitte magneetkop en werkwijze voor zijn vervaardiging.
EP83200650A EP0094708B1 (de) 1982-05-19 1983-05-06 Mit Hilfe von Glas verkitteter Magnetkopf und Verfahren zu dessen Herstellung

Publications (1)

Publication Number Publication Date
ATE21293T1 true ATE21293T1 (de) 1986-08-15

Family

ID=19839756

Family Applications (1)

Application Number Title Priority Date Filing Date
AT83200650T ATE21293T1 (de) 1982-05-19 1983-05-06 Mit hilfe von glas verkitteter magnetkopf und verfahren zu dessen herstellung.

Country Status (6)

Country Link
US (2) US4600957A (de)
EP (1) EP0094708B1 (de)
JP (1) JPS58211317A (de)
AT (1) ATE21293T1 (de)
DE (1) DE3365098D1 (de)
NL (1) NL8202059A (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0758527B2 (ja) * 1986-01-10 1995-06-21 株式会社日立製作所 磁気ヘツド
DE3621873A1 (de) * 1986-06-30 1988-01-14 Grundig Emv Verfahren zur herstellung eines magnetkopfes
DE3629519A1 (de) * 1986-08-29 1988-03-10 Grundig Emv Verfahren zur herstellung eines magnetkopfes fuer ein video-magnetbandgeraet
JPH0775053B2 (ja) * 1988-08-03 1995-08-09 松下電器産業株式会社 磁気ヘッド及びその製造方法
JPH0258714A (ja) * 1988-08-23 1990-02-27 Nippon Mining Co Ltd 磁気ヘッド
JPH0644516A (ja) * 1992-07-24 1994-02-18 Matsushita Electric Ind Co Ltd 磁気ヘッド

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3656229A (en) * 1968-11-08 1972-04-18 Hitachi Ltd Process for producing magnetic head
NL6915563A (en) * 1969-10-15 1971-04-19 Magnetic recording head prodn
US3886025A (en) * 1972-08-24 1975-05-27 Ibm Ferrite head
JPS5024097A (de) * 1973-07-04 1975-03-14
JPS54105511A (en) * 1978-02-07 1979-08-18 Toshiba Corp Production of magnetic head cores
JPS5552524A (en) * 1978-10-13 1980-04-17 Toshiba Corp Manufacture of magnetic head
NL8003518A (nl) * 1980-06-18 1982-01-18 Philips Nv Magneetkop, werkwijze voor het vervaardigen van een magneetkop.
JPS57133515A (en) * 1981-02-06 1982-08-18 Sumitomo Special Metals Co Ltd Production of magnetic head core

Also Published As

Publication number Publication date
DE3365098D1 (en) 1986-09-11
EP0094708B1 (de) 1986-08-06
US4665612A (en) 1987-05-19
EP0094708A1 (de) 1983-11-23
US4600957A (en) 1986-07-15
JPS58211317A (ja) 1983-12-08
NL8202059A (nl) 1983-12-16

Similar Documents

Publication Publication Date Title
IT8521655A0 (it) Procedimento per legare l'argento al vetro e specchi prodotti secondo questo procedimento.
BE846849A (fr) Pigments magnetiques ameliores d'oxyde de fer pour la fabrication de couches magnetiques,
EP0126621A3 (en) Alignment marks on semiconductor wafers and method of manufacturing the marks
PT80946B (pt) Processo para a preparacao de agentes espessantes de latex, soluveis em alcalis
BE860891A (fr) Procede de fabrication d'un panneau creux en matiere vitreuse, espaceur pour un tel panneau et panneau ainsi obtenu
IT8322914A0 (it) Procedimento e bobinatrice per bobine incrociate per produrre l'avvolgimento di una bobina incrociata.
IT8422056A0 (it) Substrato semiconduttore e processo di realizzazione dello stesso.
JPS5584016A (en) Magnetic head and its manufacture
IT8022190A0 (it) Processo per la preparazione di un ossido di ferro micaceo.
BR8400824A (pt) Processo para a preparacao de oxido de ferro micaceo
JPS5446021A (en) Magnetic head and production of the same
JPS52153664A (en) Method of manufacturing semiconductor oxide layer
IT1143591B (it) Procedimento per produrre pigmenti di elevata densita' di ossido di ferro,in particolare per la registrazione magnetica
ATE21293T1 (de) Mit hilfe von glas verkitteter magnetkopf und verfahren zu dessen herstellung.
DE3581694D1 (de) Magnetkopf und herstellungsverfahren.
IT8421821V0 (it) Struttura di blocco di iniezione per l'alimentazione di stampi con materiale termoplatisco fuso.
DE69227077D1 (de) Wellenleiterherstellung durch Bestrahlung von Siliziumoxyd mit Elektronen
BE866589A (fr) Procede de fabrication d'une matiere pour plaques de structure legere, et plaques ainsi fabriquees, notamment plaques de parement
JPS5552524A (en) Manufacture of magnetic head
FR2346516A1 (fr) Procede et moule pour la fabrication d'un element isolant, notamment un panneau de construction
ES535791A0 (es) Procedimiento para preparar un nucleo magnetico de material ferromagnetico de caracter oxido.
JPS5654622A (en) Magnetic head and its manufacture
EP0152064A3 (de) Dünnfilm-Magnetkopf und Herstellungsverfahren
JPS57141008A (en) Thin film double azimuth magnetic head
JPS5580821A (en) Manufacture of magnetic head

Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee