FR2400493A1 - Procede pour former une couche polycristalline magnetique optique en ferrite de cobalt, et couche en ferrite de cobalt formee de la sorte - Google Patents

Procede pour former une couche polycristalline magnetique optique en ferrite de cobalt, et couche en ferrite de cobalt formee de la sorte

Info

Publication number
FR2400493A1
FR2400493A1 FR7823577A FR7823577A FR2400493A1 FR 2400493 A1 FR2400493 A1 FR 2400493A1 FR 7823577 A FR7823577 A FR 7823577A FR 7823577 A FR7823577 A FR 7823577A FR 2400493 A1 FR2400493 A1 FR 2400493A1
Authority
FR
France
Prior art keywords
cobalt ferrite
optical magnetic
layer
forming
cobalt
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7823577A
Other languages
English (en)
French (fr)
Other versions
FR2400493B1 (enrdf_load_stackoverflow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2400493A1 publication Critical patent/FR2400493A1/fr
Application granted granted Critical
Publication of FR2400493B1 publication Critical patent/FR2400493B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/0009—Materials therefor
    • G02F1/0036—Magneto-optical materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
    • H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
    • H01F10/18—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being compounds
    • H01F10/20—Ferrites

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Thin Magnetic Films (AREA)
  • Chemically Coating (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Compounds Of Iron (AREA)
  • Surface Treatment Of Glass (AREA)
FR7823577A 1977-08-15 1978-08-10 Procede pour former une couche polycristalline magnetique optique en ferrite de cobalt, et couche en ferrite de cobalt formee de la sorte Granted FR2400493A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7708959A NL7708959A (nl) 1977-08-15 1977-08-15 Werkwijze voor het vormen van een magneto-op- tische polykristallijne cobalt ferriet laag en cobalt ferriet laag vervaardigd volgens de werkwijze.

Publications (2)

Publication Number Publication Date
FR2400493A1 true FR2400493A1 (fr) 1979-03-16
FR2400493B1 FR2400493B1 (enrdf_load_stackoverflow) 1983-02-25

Family

ID=19829014

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7823577A Granted FR2400493A1 (fr) 1977-08-15 1978-08-10 Procede pour former une couche polycristalline magnetique optique en ferrite de cobalt, et couche en ferrite de cobalt formee de la sorte

Country Status (7)

Country Link
JP (1) JPS5435900A (enrdf_load_stackoverflow)
AU (1) AU521775B2 (enrdf_load_stackoverflow)
CA (1) CA1143258A (enrdf_load_stackoverflow)
DE (1) DE2835203A1 (enrdf_load_stackoverflow)
FR (1) FR2400493A1 (enrdf_load_stackoverflow)
GB (1) GB2002338B (enrdf_load_stackoverflow)
NL (1) NL7708959A (enrdf_load_stackoverflow)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8203725A (nl) * 1982-09-27 1984-04-16 Philips Nv Thermo-magneto-optische geheugeninrichting en registratiemedium daarvoor.
NL8204291A (nl) * 1982-11-05 1984-06-01 Philips Nv Optisch registratie-element.
NL8301916A (nl) * 1983-05-31 1984-12-17 Philips Nv Thermo-magneto-optische registratie-inrichting en registratie-element daarvoor.
US4670323A (en) * 1983-11-26 1987-06-02 Ricoh Company, Ltd. Magneto-optic recording medium having a metal oxide recording layer
US4670322A (en) * 1983-12-05 1987-06-02 Ricoh Company, Ltd. Metal oxide magnetic substance and a magnetic film consisting thereof and their uses
DE3503996A1 (de) * 1984-02-06 1985-08-08 Ricoh Co., Ltd., Tokio/Tokyo Magnetische metalloxidsubstanz und eine daraus bestehende magnetschicht sowie deren verwendungen
JPS63290465A (ja) * 1987-05-22 1988-11-28 Matsushita Graphic Commun Syst Inc 画像読取装置
JPH0246705A (ja) * 1988-08-09 1990-02-16 Asahi Chem Ind Co Ltd コバルトフェライト磁性薄膜
CA2048740A1 (en) * 1990-12-24 1992-06-25 John A. Deluca Method of preparing metal oxide films
JP4560619B2 (ja) * 2003-03-26 2010-10-13 独立行政法人産業技術総合研究所 永久磁石膜
JP2010083700A (ja) * 2008-09-30 2010-04-15 Dainippon Printing Co Ltd コバルト酸化物膜を有する積層体

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE644605A (enrdf_load_stackoverflow) * 1963-03-06 1964-07-01
FR2143435A1 (enrdf_load_stackoverflow) * 1971-06-25 1973-02-02 Kyoto Ceramic

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1010205B (de) * 1952-09-22 1957-06-13 Siemens Ag Herstellung von ferromagnetischen Sinterferritkoerpern
DE1017298B (de) * 1953-03-06 1957-10-10 Siemens Ag Verfahren zur Herstellung einer ferromagnetischen, elektrisch nichtleitenden Schicht auf Traegerunterlagen
DE1091025B (de) * 1959-08-29 1960-10-13 Werk Fuer Bauelemente Der Nach Verfahren zur Herstellung von Ferritbauelementen
US3404026A (en) * 1965-04-06 1968-10-01 Army Usa Method of forming magnetic ferrite films
DE1917644A1 (de) * 1968-01-06 1970-09-10 Stamicarbon Verfahren zum Herstellen von dauermagnetisierbare Teilchen enthaltenden Platten,Baendern oder Formkoerpern zur magnetischen Speicherung von Informationen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE644605A (enrdf_load_stackoverflow) * 1963-03-06 1964-07-01
FR2143435A1 (enrdf_load_stackoverflow) * 1971-06-25 1973-02-02 Kyoto Ceramic

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
CA1975 *
CA1978 *
EXBK/64 *
EXBK/76 *

Also Published As

Publication number Publication date
CA1143258A (en) 1983-03-22
FR2400493B1 (enrdf_load_stackoverflow) 1983-02-25
DE2835203A1 (de) 1979-02-22
NL7708959A (nl) 1979-02-19
GB2002338B (en) 1982-04-15
JPS5435900A (en) 1979-03-16
GB2002338A (en) 1979-02-21
AU521775B2 (en) 1982-04-29
DE2835203C2 (enrdf_load_stackoverflow) 1988-03-10
AU3884578A (en) 1980-02-14
JPS62848B2 (enrdf_load_stackoverflow) 1987-01-09

Similar Documents

Publication Publication Date Title
FR2400493A1 (fr) Procede pour former une couche polycristalline magnetique optique en ferrite de cobalt, et couche en ferrite de cobalt formee de la sorte
BE838082A (fr) Procede et appareillage pour la fabrication de terphtalates d'alcenes oligomeres
JPS5277855A (en) Bonding transient liquid phase inclusive layer and method of producing same and bonding process
BE849787A (fr) Procede et installation pour le traitement des matieres abrasives
JPS5232270A (en) Passivation film formaion by sputtering
ES386457A1 (es) Un procedimiento para generar de manera continua una super-ficie litografica sobre una cinta metalica.
BE778963A (fr) Procede de fabrication d'elements minces a plusieurs courbures pour le revetement de coudes de tuyaux
BE790497A (fr) Procede et dispositif pour la regulation de la planeite d'une bande metallique passant par une machine a dresser
JPS5284597A (en) Method of grinding precisely and burnishing surface of lens by lapping tool tool for finishing surface of lens and method of manufacturing same
JPS5247702A (en) Process for producing a recording medium of magnetic iron oxide
BE842746A (fr) Procede et dispositif pour traiter des couches de matiere formee sur des filtres
JPS5546535A (en) Method of manufacturing semiconductor device
JPS5226214A (en) Method for coating resist
JPS51138997A (en) Method of manufacturing precisely finished surface and honing machine for carrying out this method
FR2313963A1 (fr) Procede et dispositif pour traiter des couches de matiere formee sur des filtres
JPS53147512A (en) Disc finishing device
FR2328295A1 (fr) Procede pour la fabrication de circuits en couches minces
JPS5225582A (en) Production method of semiconductor device
FR2314052A1 (fr) Procede de fabrication d'une matiere de revetement en cuir pour capitonnages et coussins d'ameublement
JPS5354041A (en) Method of producing liquid crystal molecule oriented and treated film
JPS52117549A (en) Film thickness control method for semiconductor film substance
ES439688A1 (es) Procedimiento y aparato para aplicar un recubrimiento a un substrato.
JPS5374014A (en) Production of common terminal type thin film multitrack head
JPS5339707A (en) Magnetic recording medium
IT1109303B (it) Carta di credito a magnetizzazione anisotropa uniassale

Legal Events

Date Code Title Description
ST Notification of lapse