JPS4981016A - - Google Patents

Info

Publication number
JPS4981016A
JPS4981016A JP48079376A JP7937673A JPS4981016A JP S4981016 A JPS4981016 A JP S4981016A JP 48079376 A JP48079376 A JP 48079376A JP 7937673 A JP7937673 A JP 7937673A JP S4981016 A JPS4981016 A JP S4981016A
Authority
JP
Japan
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.)
Pending
Application number
JP48079376A
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 filed Critical
Publication of JPS4981016A publication Critical patent/JPS4981016A/ja
Pending 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
    • 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
    • Y10T29/49055—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)
  • Paints Or Removers (AREA)
  • Glass Compositions (AREA)
JP48079376A 1972-08-24 1973-07-16 Pending JPS4981016A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US283614A US3886025A (en) 1972-08-24 1972-08-24 Ferrite head

Publications (1)

Publication Number Publication Date
JPS4981016A true JPS4981016A (ja) 1974-08-05

Family

ID=23086846

Family Applications (1)

Application Number Title Priority Date Filing Date
JP48079376A Pending JPS4981016A (ja) 1972-08-24 1973-07-16

Country Status (5)

Country Link
US (1) US3886025A (ja)
JP (1) JPS4981016A (ja)
DE (1) DE2341649A1 (ja)
FR (1) FR2197204B1 (ja)
GB (1) GB1376100A (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2362465A1 (fr) * 1976-08-16 1978-03-17 Matsushita Electric Ind Co Ltd Tete magnetique et procede pour sa fabrication
FR2498003A1 (fr) * 1981-01-13 1982-07-16 Thomson Csf Procede de fixation d'une piece en ferrite sur une piece metallique, dispositif hyperfrequence obtenu par ce procede et utilisation d'un tel dispositif
US4418473A (en) * 1982-03-26 1983-12-06 International Business Machines Corp. Method of making edge protected ferrite core
NL8202059A (nl) * 1982-05-19 1983-12-16 Philips Nv Glas gekitte magneetkop en werkwijze voor zijn vervaardiging.
DE3472484D1 (en) * 1983-04-27 1988-08-04 Eastman Kodak Co Thin-film magnetic head with improved wear-guide
HU188511B (en) * 1983-11-11 1986-04-28 Budapesti Radiotechnikai Gyar,Hu Magnetic reading and/or writing head
JPH02263732A (ja) * 1989-04-05 1990-10-26 Alps Electric Co Ltd 磁気ヘッド用吸光融着性ガラス

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS505924A (ja) * 1973-05-18 1975-01-22

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US448915A (en) * 1891-03-24 Georg erlwein
US2820720A (en) * 1954-09-15 1958-01-21 Hughes Aircraft Co Glass-bonded ferrite
US3494026A (en) * 1962-08-13 1970-02-10 Matsushita Electric Ind Co Ltd Methods for manufacturing magnetic heads
US3479738A (en) * 1967-05-23 1969-11-25 Rca Corp Magnetic heads
US3562444A (en) * 1968-02-29 1971-02-09 Ibm Recording head assembly
GB1227704A (ja) * 1968-03-15 1971-04-07
US3650737A (en) * 1968-03-25 1972-03-21 Ibm Imaging method using photoconductive element having a protective coating
US3544982A (en) * 1968-05-01 1970-12-01 Rca Corp Multi-head magnetic transducer
US3663767A (en) * 1968-11-16 1972-05-16 Tokyo Shibaura Electric Co Magnetic head
DE2033916A1 (de) * 1969-07-18 1971-02-04 N V Philips Gloeilampenfabneken, Eindhoven (Niederlande) Verfahren zum Herstellen eines Magnetkopfes
US3551202A (en) * 1969-07-22 1970-12-29 Gen Electric System components having protective film thereon
JPS4930319B1 (ja) * 1969-08-29 1974-08-12
US3672045A (en) * 1970-04-29 1972-06-27 Surface Technology Corp Process for bonding magnetic heads
JPS519570B1 (ja) * 1970-10-05 1976-03-27
US3778896A (en) * 1972-05-05 1973-12-18 Bell & Howell Co Bonding an insulator to an inorganic member

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS505924A (ja) * 1973-05-18 1975-01-22

Also Published As

Publication number Publication date
GB1376100A (en) 1974-12-04
FR2197204A1 (ja) 1974-03-22
DE2341649A1 (de) 1974-03-07
FR2197204B1 (ja) 1976-11-12
US3886025A (en) 1975-05-27

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