CH489864A - Mehrspur-Magnetkopf - Google Patents

Mehrspur-Magnetkopf

Info

Publication number
CH489864A
CH489864A CH838869A CH838869A CH489864A CH 489864 A CH489864 A CH 489864A CH 838869 A CH838869 A CH 838869A CH 838869 A CH838869 A CH 838869A CH 489864 A CH489864 A CH 489864A
Authority
CH
Switzerland
Prior art keywords
magnetic head
bearing surface
cylinder
balance
track magnetic
Prior art date
Application number
CH838869A
Other languages
English (en)
French (fr)
Inventor
Rasmussen Solyst Erik
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Publication of CH489864A publication Critical patent/CH489864A/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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/60—Fluid-dynamic spacing of heads from record-carriers
    • G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
    • 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
    • G11B5/17—Construction or disposition of windings
    • 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
    • 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
    • G11B5/295—Manufacture
    • 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
    • Y10T29/49041—Fabricating head structure or component thereof including measuring or testing with significant slider/housing shaping or treating
    • 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
    • Y10T29/49053—Multitrack heads having integral holding means
    • 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)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Sliding-Contact Bearings (AREA)
CH838869A 1968-06-17 1969-06-03 Mehrspur-Magnetkopf CH489864A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73775968A 1968-06-17 1968-06-17

Publications (1)

Publication Number Publication Date
CH489864A true CH489864A (de) 1970-04-30

Family

ID=24965202

Family Applications (1)

Application Number Title Priority Date Filing Date
CH838869A CH489864A (de) 1968-06-17 1969-06-03 Mehrspur-Magnetkopf

Country Status (7)

Country Link
US (1) US3579214A (de)
BE (1) BE734414A (de)
CH (1) CH489864A (de)
ES (1) ES367499A1 (de)
FR (1) FR2011039A1 (de)
GB (1) GB1250427A (de)
NL (1) NL6908601A (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678482A (en) * 1970-08-26 1972-07-18 Burroughs Corp Multiple surface fluid film bearing
US3813693A (en) * 1970-08-28 1974-05-28 Ampex Magnetic head with protective pockets of glass adjacent the corners of the gap
GB1300297A (en) * 1970-10-01 1972-12-20 Int Computers Ltd Improvements in or relating to magnetic transducing head assemblies
US3706132A (en) * 1970-11-19 1972-12-19 Rca Corp Magnetic transducer fabrication technique
US3845550A (en) * 1972-06-23 1974-11-05 Ampex Method of manufacturing a magnetic head
US3823416A (en) * 1973-03-01 1974-07-09 Ibm Flying magnetic transducer assembly having three rails
US3859663A (en) * 1973-06-18 1975-01-07 Sperry Rand Corp Multichannel transducer with glass support elements
US3859664A (en) * 1973-07-09 1975-01-07 Honeywell Inf Systems Batch fabricated thin-film transducers having a common pole with tunnel erase poles and a plurality of read/write poles
US3943624A (en) * 1975-01-24 1976-03-16 U. S. Philips Corporation Method of manufacturing a magnetic head
JPS5370808A (en) * 1976-12-07 1978-06-23 Victor Co Of Japan Ltd Magnetic head
JPS56500630A (de) * 1979-06-01 1981-05-07
US4396967A (en) * 1981-04-13 1983-08-02 International Business Machines Corporation Multielement magnetic head assembly
US5426539A (en) * 1992-12-01 1995-06-20 National Semiconductor Corporation Multiple gap read/write head for data storage devices
US6078468A (en) * 1997-05-01 2000-06-20 Fiske; Orlo James Data storage and/or retrieval methods and apparatuses and components thereof
US7023313B2 (en) * 2003-07-16 2006-04-04 Marvell World Trade Ltd. Power inductor with reduced DC current saturation
US7489219B2 (en) 2003-07-16 2009-02-10 Marvell World Trade Ltd. Power inductor with reduced DC current saturation
US7307502B2 (en) * 2003-07-16 2007-12-11 Marvell World Trade Ltd. Power inductor with reduced DC current saturation
US7760525B2 (en) * 2003-08-21 2010-07-20 Marvell World Trade Ltd. Voltage regulator
US7872454B2 (en) * 2003-08-21 2011-01-18 Marvell World Trade Ltd. Digital low dropout regulator
US8324872B2 (en) * 2004-03-26 2012-12-04 Marvell World Trade, Ltd. Voltage regulator with coupled inductors having high coefficient of coupling
US7190152B2 (en) * 2004-07-13 2007-03-13 Marvell World Trade Ltd. Closed-loop digital control system for a DC/DC converter

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2785038A (en) * 1952-06-02 1957-03-12 Rca Corp Magnetic transducer
US2848556A (en) * 1954-08-02 1958-08-19 Rca Corp Magnetic recording transducer
US2987582A (en) * 1955-08-12 1961-06-06 Sperry Rand Corp Multichannel magnetic erasing heads
US3164682A (en) * 1959-08-20 1965-01-05 Iit Res Inst Magnetic transducer
US3156919A (en) * 1960-12-30 1964-11-10 Ibm Electromagnetic transducer head
NL263324A (de) * 1961-04-07
US3292169A (en) * 1962-12-12 1966-12-13 Sperry Rand Corp Magnetic head suspensions
US3458926A (en) * 1965-10-08 1969-08-05 Ibm Method of forming a glass filled gap

Also Published As

Publication number Publication date
NL6908601A (de) 1969-12-19
ES367499A1 (es) 1971-04-01
FR2011039A1 (de) 1970-02-27
DE1929747A1 (de) 1970-04-16
BE734414A (de) 1969-11-17
DE1929747B2 (de) 1976-10-21
US3579214A (en) 1971-05-18
GB1250427A (de) 1971-10-20

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Legal Events

Date Code Title Description
PL Patent ceased