NL8100014A - Magnetisch registratie element alsmede methoden voor de vervaardiging ervan. - Google Patents

Magnetisch registratie element alsmede methoden voor de vervaardiging ervan. Download PDF

Info

Publication number
NL8100014A
NL8100014A NL8100014A NL8100014A NL8100014A NL 8100014 A NL8100014 A NL 8100014A NL 8100014 A NL8100014 A NL 8100014A NL 8100014 A NL8100014 A NL 8100014A NL 8100014 A NL8100014 A NL 8100014A
Authority
NL
Netherlands
Prior art keywords
pigment
particles
binder
water
magnetic
Prior art date
Application number
NL8100014A
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 NL8100014A priority Critical patent/NL8100014A/nl
Priority to US06/330,623 priority patent/US4384012A/en
Priority to EP82200005A priority patent/EP0055994B1/fr
Priority to DE8282200005T priority patent/DE3261080D1/de
Priority to JP57000447A priority patent/JPS57135440A/ja
Publication of NL8100014A publication Critical patent/NL8100014A/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
    • G11B5/62—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
    • G11B5/706—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 the composition of the magnetic material
    • G11B5/70626—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 the composition of the magnetic material containing non-metallic substances
    • G11B5/70642—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 the composition of the magnetic material containing non-metallic substances iron oxides
    • G11B5/70652—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 the composition of the magnetic material containing non-metallic substances iron oxides gamma - Fe2 O3
    • G11B5/70657—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 the composition of the magnetic material containing non-metallic substances iron oxides gamma - Fe2 O3 with a skin
    • 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
    • G11B5/706—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 the composition of the magnetic material
    • G11B5/70626—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 the composition of the magnetic material containing non-metallic substances
    • G11B5/70642—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 the composition of the magnetic material containing non-metallic substances iron oxides
    • G11B5/70647—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 the composition of the magnetic material containing non-metallic substances iron oxides with a skin
    • 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
    • G11B5/712—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 the surface treatment or coating of magnetic particles

Landscapes

  • Health & Medical Sciences (AREA)
  • Dermatology (AREA)
  • General Health & Medical Sciences (AREA)
  • Paints Or Removers (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Magnetic Record Carriers (AREA)
NL8100014A 1981-01-06 1981-01-06 Magnetisch registratie element alsmede methoden voor de vervaardiging ervan. NL8100014A (nl)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL8100014A NL8100014A (nl) 1981-01-06 1981-01-06 Magnetisch registratie element alsmede methoden voor de vervaardiging ervan.
US06/330,623 US4384012A (en) 1981-01-06 1981-12-14 Method of manufacturing a magnetic recording element
EP82200005A EP0055994B1 (fr) 1981-01-06 1982-01-05 Elément d'enregistrement magnétique et procédé pour sa fabrication
DE8282200005T DE3261080D1 (en) 1981-01-06 1982-01-05 Magnetic recording element and method of manufacturing same
JP57000447A JPS57135440A (en) 1981-01-06 1982-01-06 Magnetic recording element and manufacture thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8100014A NL8100014A (nl) 1981-01-06 1981-01-06 Magnetisch registratie element alsmede methoden voor de vervaardiging ervan.
NL8100014 1981-01-06

Publications (1)

Publication Number Publication Date
NL8100014A true NL8100014A (nl) 1982-08-02

Family

ID=19836820

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8100014A NL8100014A (nl) 1981-01-06 1981-01-06 Magnetisch registratie element alsmede methoden voor de vervaardiging ervan.

Country Status (5)

Country Link
US (1) US4384012A (fr)
EP (1) EP0055994B1 (fr)
JP (1) JPS57135440A (fr)
DE (1) DE3261080D1 (fr)
NL (1) NL8100014A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4622262A (en) * 1982-12-30 1986-11-11 International Business Machines Corporation Recording materials of improved lubricity for use in electroerosion printing
JP2607456B2 (ja) * 1984-05-14 1997-05-07 株式会社東芝 磁気記録用磁性粉及びその製造方法
US4699771A (en) * 1984-05-14 1987-10-13 Kabushiki Kaisha Toshiba Magnetic recording powder, method of manufacturing thereof and application thereof
US4830909A (en) * 1986-04-10 1989-05-16 International Business Machines Corporation Scratch resistant recording materials for electroerosion printing comprising cross-linked polymer base layer
JP2008056097A (ja) * 2006-08-31 2008-03-13 Komatsu Utility Co Ltd 作業車両のフロアマット

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3686031A (en) * 1969-11-26 1972-08-22 Du Pont Metal phosphate coated ferromagnetic chromium oxide and its preparation
JPS4843437B1 (fr) * 1970-12-16 1973-12-18
JPS564566B2 (fr) * 1972-07-05 1981-01-30
US3904540A (en) * 1972-02-11 1975-09-09 Pfizer Magnetic impulse record member
SE404274B (sv) * 1972-05-24 1978-09-25 Montedison Spa Stabiliserad kromdioxid
FR2199177A1 (en) * 1972-09-07 1974-04-05 Matsushita Electric Ind Co Ltd Cobalt substd gamma-ferric oxide magnetic powder - modified with a halide to increase coercive force and residual induction and diminish the temp dependence
JPS5133758A (fr) * 1974-09-17 1976-03-23 Fuji Photo Film Co Ltd
US4268540A (en) * 1978-09-25 1981-05-19 Ampex Corporation Particles for magnetic recording
JPS6016728B2 (ja) * 1979-05-10 1985-04-27 ソニー株式会社 磁性粉の製法

Also Published As

Publication number Publication date
DE3261080D1 (en) 1984-12-06
JPS57135440A (en) 1982-08-21
JPH0227728B2 (fr) 1990-06-19
US4384012A (en) 1983-05-17
EP0055994B1 (fr) 1984-10-31
EP0055994A3 (en) 1982-08-04
EP0055994A2 (fr) 1982-07-14

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Legal Events

Date Code Title Description
A1B A search report has been drawn up
A85 Still pending on 85-01-01
BV The patent application has lapsed