IT999733B - MAGNETIC TRANSDUCER PARTICULARLY FOR MAGNETIC HEADS - Google Patents

MAGNETIC TRANSDUCER PARTICULARLY FOR MAGNETIC HEADS

Info

Publication number
IT999733B
IT999733B IT70254/73A IT7025473A IT999733B IT 999733 B IT999733 B IT 999733B IT 70254/73 A IT70254/73 A IT 70254/73A IT 7025473 A IT7025473 A IT 7025473A IT 999733 B IT999733 B IT 999733B
Authority
IT
Italy
Prior art keywords
magnetic
heads
transducer particularly
magnetic heads
magnetic transducer
Prior art date
Application number
IT70254/73A
Other languages
Italian (it)
Original Assignee
Cii
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 Cii filed Critical Cii
Application granted granted Critical
Publication of IT999733B publication Critical patent/IT999733B/en

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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/313—Disposition of layers
    • G11B5/3143—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding
    • G11B5/3146—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding magnetic layers
    • G11B5/3153—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding magnetic layers including at least one magnetic thin film coupled by interfacing to the basic magnetic thin film structure
    • 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
    • G11B5/245—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track
    • G11B5/2452—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track where the dimensions of the effective gap are controlled

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetic Heads (AREA)
  • Magnetic Record Carriers (AREA)
  • Thin Magnetic Films (AREA)
IT70254/73A 1972-11-07 1973-11-06 MAGNETIC TRANSDUCER PARTICULARLY FOR MAGNETIC HEADS IT999733B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7239317A FR2205701B1 (en) 1972-11-07 1972-11-07

Publications (1)

Publication Number Publication Date
IT999733B true IT999733B (en) 1976-03-10

Family

ID=9106735

Family Applications (1)

Application Number Title Priority Date Filing Date
IT70254/73A IT999733B (en) 1972-11-07 1973-11-06 MAGNETIC TRANSDUCER PARTICULARLY FOR MAGNETIC HEADS

Country Status (9)

Country Link
US (1) US3867368A (en)
BE (1) BE806212A (en)
DE (1) DE2355672C3 (en)
ES (1) ES420322A1 (en)
FR (1) FR2205701B1 (en)
GB (1) GB1453288A (en)
HU (1) HU169854B (en)
IT (1) IT999733B (en)
NL (1) NL7314869A (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2264350B1 (en) * 1974-03-11 1978-09-29 Cii
JPS51117020A (en) * 1975-04-07 1976-10-14 Hitachi Ltd Magnetic head and production method of it
US4191983A (en) * 1977-06-24 1980-03-04 Applied Magnetics Corporation Thin film magnetic head assembly having a thin film magnetic transducer encapsulated in insulating bonding material
US4321641A (en) * 1977-09-02 1982-03-23 Magnex Corporation Thin film magnetic recording heads
US4195323A (en) * 1977-09-02 1980-03-25 Magnex Corporation Thin film magnetic recording heads
GB2003647B (en) * 1977-09-02 1982-05-06 Magnex Corp Thin film magnetic recording heads
US4156882A (en) * 1977-12-15 1979-05-29 Texas Instruments Incorporated Magnetic transducer
US4374403A (en) * 1979-06-27 1983-02-15 Matsushita Electric Industrial Co., Ltd. Magnetic recording and reproducing system
DE3424651A1 (en) * 1983-11-04 1985-05-15 Control Data Corp., Minneapolis, Minn. MAGNETIC CONVERTER HEAD
JPH07114007B2 (en) * 1987-12-04 1995-12-06 ディジタル イクイプメント コーポレーション Multilayer magnetic pole of recording head
US5108837A (en) * 1987-12-04 1992-04-28 Digital Equipment Corporation Laminated poles for recording heads
US4897749A (en) * 1988-03-16 1990-01-30 Magnetic Peripherals Inc. Combination probe and ring head for vertical recording
US5065326A (en) * 1989-08-17 1991-11-12 Caterpillar, Inc. Automatic excavation control system and method
JPH0383213A (en) * 1989-08-24 1991-04-09 Matsushita Electric Ind Co Ltd Thin film magnetic head
US5132859A (en) * 1990-08-23 1992-07-21 International Business Machines Corporation Thin film structures for magnetic recording heads
US6259583B1 (en) 1998-09-16 2001-07-10 International Business Machines, Corporation Laminated yoke head with a domain control element
US7369360B2 (en) * 2004-11-05 2008-05-06 Seagate Technology Llc Perpendicular recording head having controlled permeability and saturation moment
US8329320B2 (en) * 2008-11-13 2012-12-11 Headway Technologies, Inc. Laminated high moment film for head applications

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3344237A (en) * 1967-09-26 Desposited film transducing apparatus and method op producing the apparatus
US3549825A (en) * 1967-09-18 1970-12-22 Ncr Co Magnetic transducer with planar spiral coil extending into the gap
US3564558A (en) * 1968-08-26 1971-02-16 Sperry Rand Corp High-density magnetic recording scheme
US3611417A (en) * 1969-07-30 1971-10-05 Sperry Rand Corp High-density magnetic recording method
BE758053A (en) * 1969-10-28 1971-04-01 Commissariat Energie Atomique INTEGRATED MAGNETIC HEAD AND METHOD FOR MANUFACTURING THE SAID HEAD
US3700827A (en) * 1970-01-31 1972-10-24 Nippon Electric Co Magnetic head including thin magnetic film separated by a gap spacer
US3639699A (en) * 1970-02-27 1972-02-01 Gen Electric Magnetic transducer having a composite magnetic core structure

Also Published As

Publication number Publication date
ES420322A1 (en) 1976-03-16
FR2205701A1 (en) 1974-05-31
DE2355672C3 (en) 1980-10-09
GB1453288A (en) 1976-10-20
DE2355672A1 (en) 1974-05-16
NL7314869A (en) 1974-05-09
BE806212A (en) 1974-02-15
US3867368A (en) 1975-02-18
HU169854B (en) 1977-02-28
DE2355672B2 (en) 1980-01-31
FR2205701B1 (en) 1977-08-05

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