JPS5029157B1 - - Google Patents

Info

Publication number
JPS5029157B1
JPS5029157B1 JP46035860A JP3586071A JPS5029157B1 JP S5029157 B1 JPS5029157 B1 JP S5029157B1 JP 46035860 A JP46035860 A JP 46035860A JP 3586071 A JP3586071 A JP 3586071A JP S5029157 B1 JPS5029157 B1 JP S5029157B1
Authority
JP
Japan
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.)
Pending
Application number
JP46035860A
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 filed Critical
Priority to JP46035860A priority Critical patent/JPS5029157B1/ja
Priority to DE2225796A priority patent/DE2225796C3/de
Priority to US05/257,716 priority patent/US3958068A/en
Publication of JPS5029157B1 publication Critical patent/JPS5029157B1/ja
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/48—Coating with alloys
    • C23C18/50—Coating with alloys with alloys based on iron, cobalt or nickel
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/31—Coating with metals
    • C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
    • C23C18/34—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/06—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/065—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder obtained by a reduction
    • 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
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Dermatology (AREA)
  • General Health & Medical Sciences (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
JP46035860A 1971-05-27 1971-05-27 Pending JPS5029157B1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP46035860A JPS5029157B1 (ja) 1971-05-27 1971-05-27
DE2225796A DE2225796C3 (de) 1971-05-27 1972-05-26 Verfahren zur Herstellung von magnetischem Material in Pulverform
US05/257,716 US3958068A (en) 1971-05-27 1972-05-30 Process for the production of powdered magnetic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46035860A JPS5029157B1 (ja) 1971-05-27 1971-05-27

Publications (1)

Publication Number Publication Date
JPS5029157B1 true JPS5029157B1 (ja) 1975-09-20

Family

ID=12453722

Family Applications (1)

Application Number Title Priority Date Filing Date
JP46035860A Pending JPS5029157B1 (ja) 1971-05-27 1971-05-27

Country Status (3)

Country Link
US (1) US3958068A (ja)
JP (1) JPS5029157B1 (ja)
DE (1) DE2225796C3 (ja)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4137342A (en) * 1976-10-29 1979-01-30 Minnesota Mining And Manufacturing Company Cobalt-doped acicular hyper-magnetite particles
JPS5939814B2 (ja) * 1978-03-16 1984-09-26 ティーディーケイ株式会社 磁気記録媒体の製造方法
US4226909A (en) * 1978-08-21 1980-10-07 Minnesota Mining And Manufacturing Company Cobalt-doped acicular hyper-magnetite particles
US4657816A (en) * 1982-04-19 1987-04-14 Memorex Corporation Ferromagnetic recording materials
DE3240337A1 (de) * 1982-10-30 1984-05-03 Basf Ag, 6700 Ludwigshafen Nadelfoermige ferromagnetische chromdioxidteilchen
US4495246A (en) * 1983-10-27 1985-01-22 Basf Aktiengesellschaft Acicular ferromagnetic chromium dioxide particles
JP3866074B2 (ja) * 2001-10-12 2007-01-10 富士フイルムホールディングス株式会社 強磁性金属粉末及びその製造方法並びに磁気記録媒体
EP1662256A1 (en) * 2004-11-25 2006-05-31 Spinomix S.A. Tailored magnetic particles and method to produce same
EP2962107A1 (en) 2013-03-01 2016-01-06 Spinomix S.A. A magnetic particles based separation and assaying method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2809731A (en) * 1950-11-16 1957-10-15 Vickers Inc Magnetic particle coupling device with nickel-coated iron particles
US3139354A (en) * 1961-03-31 1964-06-30 Rca Corp Magnetic recording element containing magnetic particles treated with werner-type complex compound and method of manufacture thereof
US3556839A (en) * 1966-11-01 1971-01-19 Ind Distributors 1946 Ltd Electroless metal coating
US3494760A (en) * 1967-09-28 1970-02-10 Burton Electrochem Co Inc Production of metal and alloy particles by chemical reduction
US3567525A (en) * 1968-06-25 1971-03-02 Du Pont Heat treated ferromagnetic particles
US3632512A (en) * 1969-02-17 1972-01-04 Eastman Kodak Co Method of preparing magnetically responsive carrier particles
US3770500A (en) * 1969-09-16 1973-11-06 Tdk Electronics Co Ltd Magnetic materials and method of making same
US3718594A (en) * 1970-11-30 1973-02-27 Eastman Kodak Co Method of preparing magnetically responsive carrier particles

Also Published As

Publication number Publication date
US3958068A (en) 1976-05-18
DE2225796A1 (de) 1972-12-14
DE2225796B2 (de) 1977-06-08
DE2225796C3 (de) 1982-12-02

Similar Documents

Publication Publication Date Title
ATA136472A (ja)
AU2658571A (ja)
AU2691671A (ja)
AU2485671A (ja)
AU3005371A (ja)
AU2894671A (ja)
AU2684071A (ja)
AU2564071A (ja)
AU2952271A (ja)
AU2742671A (ja)
AU2941471A (ja)
AU2726271A (ja)
AR202997Q (ja)
AR199640Q (ja)
AU2706571A (ja)
AU2577671A (ja)
AU2399971A (ja)
AU2930871A (ja)
AU2486471A (ja)
AU2415871A (ja)
AU2740271A (ja)
AU1109576A (ja)
AU2837671A (ja)
AU2669471A (ja)
AU2755871A (ja)