NL8400140A - Magneetkop. - Google Patents

Magneetkop. Download PDF

Info

Publication number
NL8400140A
NL8400140A NL8400140A NL8400140A NL8400140A NL 8400140 A NL8400140 A NL 8400140A NL 8400140 A NL8400140 A NL 8400140A NL 8400140 A NL8400140 A NL 8400140A NL 8400140 A NL8400140 A NL 8400140A
Authority
NL
Netherlands
Prior art keywords
core
magnetic head
magnetic
layers
magnetic material
Prior art date
Application number
NL8400140A
Other languages
English (en)
Dutch (nl)
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
Priority to NL8400140A priority Critical patent/NL8400140A/nl
Priority to EP84201915A priority patent/EP0149281B1/de
Priority to DE8484201915T priority patent/DE3477076D1/de
Priority to AT84201915T priority patent/ATE41256T1/de
Priority to US06/690,338 priority patent/US4670807A/en
Priority to JP60005628A priority patent/JPS60160008A/ja
Publication of NL8400140A publication Critical patent/NL8400140A/nl

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
    • G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
    • G11B5/2652—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track with more than one gap simultaneously operative
    • 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
    • G11B5/1875—"Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
NL8400140A 1984-01-17 1984-01-17 Magneetkop. NL8400140A (nl)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL8400140A NL8400140A (nl) 1984-01-17 1984-01-17 Magneetkop.
EP84201915A EP0149281B1 (de) 1984-01-17 1984-12-19 Magnetkopf
DE8484201915T DE3477076D1 (en) 1984-01-17 1984-12-19 Magnetic head
AT84201915T ATE41256T1 (de) 1984-01-17 1984-12-19 Magnetkopf.
US06/690,338 US4670807A (en) 1984-01-17 1985-01-10 Magnetic write head with smooth frequency response
JP60005628A JPS60160008A (ja) 1984-01-17 1985-01-16 磁気ヘツド

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8400140 1984-01-17
NL8400140A NL8400140A (nl) 1984-01-17 1984-01-17 Magneetkop.

Publications (1)

Publication Number Publication Date
NL8400140A true NL8400140A (nl) 1985-08-16

Family

ID=19843336

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8400140A NL8400140A (nl) 1984-01-17 1984-01-17 Magneetkop.

Country Status (6)

Country Link
US (1) US4670807A (de)
EP (1) EP0149281B1 (de)
JP (1) JPS60160008A (de)
AT (1) ATE41256T1 (de)
DE (1) DE3477076D1 (de)
NL (1) NL8400140A (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4823216A (en) * 1987-10-23 1989-04-18 Applied Magnetics Corporation Microminimonolithic magnetic head slider
US4972279A (en) * 1981-10-23 1990-11-20 Applied Magnetics Corporation Microminimonolithic magnetic head slider
JPS61133007A (ja) * 1984-12-01 1986-06-20 Victor Co Of Japan Ltd 磁気ヘツド
US4890378A (en) * 1985-08-28 1990-01-02 Canon Kabushiki Kaisha Method for manufacturing a magnetic head core having a magnetic film
DE3537110A1 (de) * 1985-10-18 1987-04-23 Grundig Emv Mig-magnetkopf
US5245488A (en) * 1986-08-13 1993-09-14 Seiko Epson Corporation Low-noise composite magnetic head for recording and producing
DE3628950A1 (de) * 1986-08-26 1988-03-03 Grundig Emv Verfahren zur herstellung eines magnetkopfes
NL8700160A (nl) * 1987-01-23 1988-08-16 Philips Nv Magneetkop voor gebruik bij loodrechte registratie.
JP2513205B2 (ja) * 1987-02-04 1996-07-03 ソニー株式会社 複合磁気ヘツド
JP2690895B2 (ja) * 1987-04-30 1997-12-17 株式会社日立製作所 磁気ヘツド
JPH0832949B2 (ja) * 1987-12-28 1996-03-29 富士通株式会社 鉄―コバルト系軟質磁性材料の製造方法
US5124865A (en) * 1988-03-31 1992-06-23 Applied Magnetics Corporation Microminimonolithic magnetic head slider having vertically extending slots to reduce flux leakage losses
US5081553A (en) * 1988-03-31 1992-01-14 Applied Magnetics Corporation Combination of elongated load arm and microminimonolithic head slider
US5038242A (en) * 1988-05-13 1991-08-06 Citizen Watch Co., Ltd. Magnetic head containing a barrier layer
US5029032A (en) * 1988-10-19 1991-07-02 Tdk Corporation Magnetic head for high density recording
US5001589A (en) * 1989-05-31 1991-03-19 Seagate Technology, Inc. Tungsten and tantalum diffusion barriers for Metal-In-Gap magnetic heads
JPH0448415A (ja) * 1990-06-13 1992-02-18 Alps Electric Co Ltd 磁気ヘッド
JPH0711050U (ja) * 1993-07-20 1995-02-14 村田機械株式会社 原稿のキャリアシート
EP0675485B1 (de) * 1994-03-31 2002-01-09 Matsushita Electric Industrial Co., Ltd. Magnetaufzeichnungs- und -wiedergabegerät
US5689384A (en) * 1994-06-30 1997-11-18 International Business Machines Corporation Timing based servo system for magnetic tape systems
JP3640296B2 (ja) * 1999-12-10 2005-04-20 富士通株式会社 磁気ヘッド、磁気ヘッド製造方法、および情報記録装置

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL92346C (de) *
CH332872A (de) * 1954-02-27 1958-09-30 Luxor Industri Ab Magnetkopf mit einem Kern aus Ferrit
DE960586C (de) * 1954-04-02 1957-03-21 Telefunken Gmbh Hoerkopf fuer Magnettongeraete
US3143603A (en) * 1960-08-29 1964-08-04 Ampex Magnetic record head assembly
JPS5151118A (ja) * 1974-10-29 1976-05-06 Takao Izuhara Kabekozo
JPS51120208A (en) * 1975-04-12 1976-10-21 Canon Inc Magnetic head
JPS543517A (en) * 1977-06-09 1979-01-11 Sony Corp Erasing head
JPS5429017U (de) * 1977-07-29 1979-02-26
SU652605A1 (ru) * 1978-03-27 1979-03-15 Предприятие П/Я А-3593 Магнитна головка
SU725081A1 (ru) * 1978-10-25 1980-03-30 Предприятие П/Я А-3593 Магнитна головка дл записи и стирани сигналограммы
JPS5641520A (en) * 1979-09-13 1981-04-18 Hitachi Ltd Magnetic head
JPS57103116A (en) * 1980-12-19 1982-06-26 Sony Corp Magnetic head
JPS581820A (ja) * 1981-06-26 1983-01-07 Sony Corp 磁気ヘツド
JPS58105422A (ja) * 1981-12-17 1983-06-23 Sony Corp 磁気ヘツド
JPS58159219A (ja) * 1982-03-16 1983-09-21 Canon Electronics Inc 磁気ヘツド
EP0108074A4 (de) * 1982-05-04 1984-10-29 Eastman Kodak Co Magnetkopf mit hoch sättigungsfähiger spaltenverkleidung.
JPS6089806A (ja) * 1983-10-24 1985-05-20 Sony Corp 磁気消去ヘツド

Also Published As

Publication number Publication date
DE3477076D1 (en) 1989-04-13
EP0149281B1 (de) 1989-03-08
JPS60160008A (ja) 1985-08-21
EP0149281A2 (de) 1985-07-24
ATE41256T1 (de) 1989-03-15
US4670807A (en) 1987-06-02
EP0149281A3 (en) 1985-08-14
JPH0518164B2 (de) 1993-03-11

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Legal Events

Date Code Title Description
A1B A search report has been drawn up
BV The patent application has lapsed