CA936958A - Magnetic recording head having a non-magnetic ferrite gap - Google Patents

Magnetic recording head having a non-magnetic ferrite gap

Info

Publication number
CA936958A
CA936958A CA116621A CA116621A CA936958A CA 936958 A CA936958 A CA 936958A CA 116621 A CA116621 A CA 116621A CA 116621 A CA116621 A CA 116621A CA 936958 A CA936958 A CA 936958A
Authority
CA
Canada
Prior art keywords
magnetic
recording head
magnetic recording
ferrite gap
gap
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
CA116621A
Other languages
English (en)
Other versions
CA116621S (en
Inventor
R. Secrist Duane
L. Turk Harold
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of CA936958A publication Critical patent/CA936958A/en
Expired 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
    • G11B5/235—Selection of material for gap filler
    • 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)
CA116621A 1970-07-02 1971-06-25 Magnetic recording head having a non-magnetic ferrite gap Expired CA936958A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5192870A 1970-07-02 1970-07-02

Publications (1)

Publication Number Publication Date
CA936958A true CA936958A (en) 1973-11-13

Family

ID=21974268

Family Applications (1)

Application Number Title Priority Date Filing Date
CA116621A Expired CA936958A (en) 1970-07-02 1971-06-25 Magnetic recording head having a non-magnetic ferrite gap

Country Status (7)

Country Link
US (1) US3639701A (fr)
JP (1) JPS5139100B1 (fr)
CA (1) CA936958A (fr)
DE (1) DE2125816A1 (fr)
FR (1) FR2097960A5 (fr)
GB (1) GB1342035A (fr)
SE (1) SE366414B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3824685A (en) * 1972-02-14 1974-07-23 Bell & Howell Co Method of making a ferrite head
JPS5410852B2 (fr) * 1973-08-07 1979-05-10
JPS5427132B2 (fr) * 1974-02-21 1979-09-07
FR2284159A1 (fr) * 1974-09-06 1976-04-02 Thomson Csf Methode de fabrication de tetes magnetiques de lecture, d'ecriture et d'effacement pour memoires a support defilant, et tete obtenue par ladite methode
JPS5827565B2 (ja) * 1977-09-19 1983-06-10 松下電器産業株式会社 磁気ヘッドおよびその製造方法
US4219853A (en) * 1978-12-21 1980-08-26 International Business Machines Corporation Read/write thin film head
US4406722A (en) * 1982-05-03 1983-09-27 International Business Machines Corp. Diffusion bonding of dissimilar ceramics
JPS60187910A (ja) * 1984-03-06 1985-09-25 Matsushita Electric Ind Co Ltd 合金磁気ヘツドのギヤツプ形成法
JPS61133007A (ja) * 1984-12-01 1986-06-20 Victor Co Of Japan Ltd 磁気ヘツド
JPS61233405A (ja) * 1985-04-08 1986-10-17 Matsushita Electric Ind Co Ltd 磁気ヘツド
US4874922A (en) * 1988-11-30 1989-10-17 Impris Technology Incorporated Granule vise for manufacturing a magnetic head core with a glass fillet adjacent the inner edge of the gap

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL299035A (fr) * 1963-10-09
US3495045A (en) * 1964-08-18 1970-02-10 Peter F Varadi Magnetic transducer head having a ceramic gap spacer
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.
US3478340A (en) * 1966-03-11 1969-11-11 Ibm Unitized magnetic assembly
US3479738A (en) * 1967-05-23 1969-11-25 Rca Corp Magnetic heads

Also Published As

Publication number Publication date
GB1342035A (en) 1973-12-25
FR2097960A5 (fr) 1972-03-03
US3639701A (en) 1972-02-01
DE2125816A1 (de) 1972-01-05
SE366414B (fr) 1974-04-22
JPS5139100B1 (fr) 1976-10-26

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