ATE35064T1 - Magnetischer aufzeichnungstraeger vom filmtyp und methode zur herstellung des traegers. - Google Patents

Magnetischer aufzeichnungstraeger vom filmtyp und methode zur herstellung des traegers.

Info

Publication number
ATE35064T1
ATE35064T1 AT84115484T AT84115484T ATE35064T1 AT E35064 T1 ATE35064 T1 AT E35064T1 AT 84115484 T AT84115484 T AT 84115484T AT 84115484 T AT84115484 T AT 84115484T AT E35064 T1 ATE35064 T1 AT E35064T1
Authority
AT
Austria
Prior art keywords
film
carrier
grains
magnetic recording
film type
Prior art date
Application number
AT84115484T
Other languages
English (en)
Inventor
Yasunori Takahashi
Original Assignee
Scitec 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 Scitec Corp filed Critical Scitec Corp
Application granted granted Critical
Publication of ATE35064T1 publication Critical patent/ATE35064T1/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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/716—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by two or more magnetic layers
    • 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
    • G11B5/62—Record carriers characterised by the selection of the material
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/256—Heavy metal or aluminum or compound thereof
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/256—Heavy metal or aluminum or compound thereof
    • Y10T428/257—Iron oxide or aluminum oxide

Landscapes

  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Liquid Crystal (AREA)
  • Thin Magnetic Films (AREA)
AT84115484T 1983-12-15 1984-12-14 Magnetischer aufzeichnungstraeger vom filmtyp und methode zur herstellung des traegers. ATE35064T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP58235022A JPS60127527A (ja) 1983-12-15 1983-12-15 膜状積重磁気記録媒体およびその製造方法
EP84115484A EP0145026B1 (de) 1983-12-15 1984-12-14 Magnetischer Aufzeichnungsträger vom Filmtyp und Methode zur Herstellung des Trägers

Publications (1)

Publication Number Publication Date
ATE35064T1 true ATE35064T1 (de) 1988-06-15

Family

ID=16979914

Family Applications (1)

Application Number Title Priority Date Filing Date
AT84115484T ATE35064T1 (de) 1983-12-15 1984-12-14 Magnetischer aufzeichnungstraeger vom filmtyp und methode zur herstellung des traegers.

Country Status (10)

Country Link
US (1) US4672009A (de)
EP (1) EP0145026B1 (de)
JP (1) JPS60127527A (de)
KR (1) KR920008416B1 (de)
AT (1) ATE35064T1 (de)
AU (1) AU566236B2 (de)
BR (1) BR8406406A (de)
CA (1) CA1228420A (de)
DE (1) DE3472023D1 (de)
ES (1) ES538636A0 (de)

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JPS62208415A (ja) * 1986-03-07 1987-09-12 Hitachi Maxell Ltd 磁気記録媒体およびその製造方法
US4837080A (en) * 1986-11-18 1989-06-06 Matsushita Electric Industrial Co., Ltd. Magnetic recording mediums for high density recording comprising an improved structure of a magnetic layer
JPH06162493A (ja) * 1992-11-18 1994-06-10 Nec Ibaraki Ltd 磁気ディスク用基板
US5413900A (en) * 1993-01-18 1995-05-09 Fuji Photo Film Co., Ltd. Silver halide photographic material and a manufacturing method therefor
JP3365141B2 (ja) * 1995-04-28 2003-01-08 鐘淵化学工業株式会社 人工毛髪用異形断面繊維
EP0858853B1 (de) * 1996-07-29 2002-03-06 Matsushita Electric Industrial Co., Ltd. herstellungsverfahren eines metallischen porösen körper
JP2003162807A (ja) 2001-11-27 2003-06-06 Toshiba Corp 垂直磁気記録媒体及びこれを用いた磁気記録再生装置
US8797674B2 (en) 2011-06-13 2014-08-05 Imation Corp. Servo mark length matched to write head gap for magnetic storage media
US8817415B2 (en) * 2011-06-13 2014-08-26 Imation Corp. Erasure of magnetic storage media having perpendicular anisotropy
US8767342B2 (en) 2011-06-13 2014-07-01 Imation Corp. Erasure and servowriting of magnetic storage media having perpendicular anistropy
US8804276B2 (en) 2011-06-13 2014-08-12 Imation Corp. Continuous biasing and servowriting of magnetic storage media having perpendicular anisotropy
WO2013151612A1 (en) 2012-04-04 2013-10-10 Imation Corp. Perpendicular pole head for servo writing magnetic media
US8643968B2 (en) 2012-04-26 2014-02-04 Imation Corp. Methods and systems for magnetic media servo writing
US8867167B2 (en) 2012-04-26 2014-10-21 Imation Corp. Tapered pole heads for magnetic media
US8760802B2 (en) 2012-04-26 2014-06-24 Imation Corp. Systems and methods for processing magnetic media with first and second magnetic gaps adjacent opposite sides of the recording layer
US8797681B2 (en) 2012-04-26 2014-08-05 Imation Corp. Servo write head having plural spaced front blocks coupled by magnetic posts to a back bar

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US2796359A (en) * 1952-07-05 1957-06-18 Audio Devices Inc Production of magnetic sound recording tape
US3047428A (en) * 1958-01-27 1962-07-31 Fuji Photo Film Co Ltd Magnetic recording material
US3185775A (en) * 1958-03-10 1965-05-25 Iit Res Inst Oriented tape
US3117065A (en) * 1959-09-02 1964-01-07 Magnetic Film And Tape Company Method and apparatus for making magnetic recording tape
US3052567A (en) * 1959-09-23 1962-09-04 Minnesota Mining & Mfg Magnetic recording medium
US3222205A (en) * 1963-02-15 1965-12-07 Lew W Karalus Recording tape
FR92623E (fr) * 1967-06-19 1968-12-06 Loire Atel Forges Perfectionnements apportés aux procédés pour l'amélioration des propriétés magnétiques des aciers à usages magnétiques, et produits obtenus par ces procédés
US3767464A (en) * 1968-11-13 1973-10-23 Fuji Photo Film Co Ltd Magnetic recording member and method of producing same
US3573099A (en) * 1969-12-22 1971-03-30 Ibm Process for making garnet films
US3853676A (en) * 1970-07-30 1974-12-10 Du Pont Reference points on films containing curved configurations of magnetically oriented pigment
US4109287A (en) * 1972-04-14 1978-08-22 Pilot Man-Nun-Hitsu Kabushiki Kaisha Process for recording information or sound and process for preparation of recording materials used therefor
US4042341A (en) * 1973-10-15 1977-08-16 General Electric Company Magnetic films of transition metal-rare earth alloys
US4024299A (en) * 1973-10-15 1977-05-17 General Electric Company Process for preparing magnetic member
US4144585A (en) * 1974-03-19 1979-03-13 The United States Of America As Represented By The Secretary Of The Air Force Bubble domain structures and method of making
JPS50134608A (de) * 1974-04-10 1975-10-24
JPS5719049B2 (de) * 1974-06-13 1982-04-20
US4171389A (en) * 1975-03-13 1979-10-16 Bell Telephone Laboratories, Incorporated Process for suppressing hard bubbles in magnetic bubble devices
JPS5246803A (en) * 1975-10-13 1977-04-14 Hitachi Ltd Structure of magnetic medium
US4075672A (en) * 1976-02-09 1978-02-21 Graham Magnetics Incorporated Magnetic recording members
US4237506A (en) * 1978-04-03 1980-12-02 Graham Magnetics Inc. Polymodal magnetic recording member
DE2815712A1 (de) * 1978-04-12 1979-10-25 Bayer Ag Eisenoxide zur magnetischen signalaufzeichnung und verfahren zu deren herstellung
US4293621A (en) * 1978-10-12 1981-10-06 Nippon Hoso Kyokai Recording medium
US4277809A (en) * 1979-09-26 1981-07-07 Memorex Corporation Apparatus for recording magnetic impulses perpendicular to the surface of a recording medium
JPS56119938A (en) * 1980-02-22 1981-09-19 Sony Corp Production of magnetic recording medium
JPS56134317A (en) * 1980-03-25 1981-10-21 Tdk Corp Magnetic recording medium
JPS56143519A (en) * 1980-04-08 1981-11-09 Tdk Corp Magnetic recording medium and manufacturing device
US4367257A (en) * 1980-04-16 1983-01-04 Fuji Photo Film Co., Ltd. Thin magnetic recording medium
JPS5737737A (en) * 1980-08-15 1982-03-02 Fuji Photo Film Co Ltd Magnetic recording medium
DE3032708A1 (de) * 1980-08-30 1982-04-29 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren zur herstellung eines duennschicht-magnetfeld-sensors
JPS5798134A (en) * 1980-12-11 1982-06-18 Fuji Photo Film Co Ltd Magnetic recording body
JPS57100627A (en) * 1980-12-12 1982-06-22 Teijin Ltd Manufacture of vertical magnetic recording medium
JPS57143727A (en) * 1981-02-27 1982-09-06 Fuji Photo Film Co Ltd Magnetic recording medium
JPS57143729A (en) * 1981-02-27 1982-09-06 Fuji Photo Film Co Ltd Magnetic recording medium
US4333961A (en) * 1981-04-30 1982-06-08 International Business Machines Corporation Preparation of thin, aligned magnetic coatings
JPS57183627A (en) * 1981-05-07 1982-11-12 Fuji Photo Film Co Ltd Magnetic recording medium
JPS57183630A (en) * 1981-05-07 1982-11-12 Fuji Photo Film Co Ltd Magnetic recording medium
JPS57183626A (en) * 1981-05-07 1982-11-12 Fuji Photo Film Co Ltd Magnetic recording medium
JPS57195327A (en) * 1981-05-26 1982-12-01 Fuji Photo Film Co Ltd Magnetic recording medium
JPS57195329A (en) * 1981-05-26 1982-12-01 Fuji Photo Film Co Ltd Magnetic recording medium
JPS57198544A (en) * 1981-05-28 1982-12-06 Sony Corp Manufacture of magnetic recording medium
DE3123746A1 (de) * 1981-06-15 1982-12-30 Agfa-Gevaert Ag, 5090 Leverkusen Magnetisches richtsystem
US4399422A (en) * 1981-08-31 1983-08-16 Wang Laboratories, Inc. Magnetizing apparatus
US4388367A (en) * 1981-09-28 1983-06-14 Xerox Corporation Perpendicular magnetic recording medium and fabrication
JPS5880136A (ja) * 1981-11-02 1983-05-14 Fuji Photo Film Co Ltd 磁気記録材料の製造方法
JPS5883346A (ja) * 1981-11-10 1983-05-19 Kokusai Denshin Denwa Co Ltd <Kdd> 光磁気記録媒体
JPH065575B2 (ja) * 1982-06-17 1994-01-19 富士写真フイルム株式会社 磁気記録媒体の製造法
US4451495A (en) * 1982-08-30 1984-05-29 International Business Machines Corporation Increasing magnetic particle concentration in magnetic coatings
DE3308052A1 (de) * 1983-03-08 1984-09-13 Agfa-Gevaert Ag, 5090 Leverkusen Verfahren zur herstellung eines magnetischen aufzeichnungsmaterials mit senkrechtausrichtung
US4447467A (en) * 1983-03-23 1984-05-08 Tokyo Shibaura Denki Kabushiki Kaisha Method and apparatus for perpendicular magnetic recording medium

Also Published As

Publication number Publication date
KR850004835A (ko) 1985-07-27
BR8406406A (pt) 1985-10-08
CA1228420A (en) 1987-10-20
AU566236B2 (en) 1987-10-15
ES8601539A1 (es) 1985-11-01
AU3629884A (en) 1985-06-20
EP0145026A3 (en) 1986-02-05
EP0145026A2 (de) 1985-06-19
DE3472023D1 (en) 1988-07-14
ES538636A0 (es) 1985-11-01
US4672009A (en) 1987-06-09
EP0145026B1 (de) 1988-06-08
KR920008416B1 (ko) 1992-09-28
JPS60127527A (ja) 1985-07-08

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee