NL7013667A - - Google Patents

Info

Publication number
NL7013667A
NL7013667A NL7013667A NL7013667A NL7013667A NL 7013667 A NL7013667 A NL 7013667A NL 7013667 A NL7013667 A NL 7013667A NL 7013667 A NL7013667 A NL 7013667A NL 7013667 A NL7013667 A NL 7013667A
Authority
NL
Netherlands
Application number
NL7013667A
Other versions
NL155116B (nl
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
Priority claimed from JP44076468A external-priority patent/JPS5020557B1/ja
Application filed filed Critical
Publication of NL7013667A publication Critical patent/NL7013667A/xx
Publication of NL155116B publication Critical patent/NL155116B/xx

Links

Classifications

    • 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
    • H01F1/061—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 with a protective layer
    • 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
    • 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

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Dermatology (AREA)
  • General Health & Medical Sciences (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Paints Or Removers (AREA)
NL707013667A 1969-09-16 1970-09-16 Werkwijze ter vervaardiging van een magnetisch materiaal, alsmede het aldus verkregen magnetische materiaal. NL155116B (nl)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP7338869 1969-09-16
JP44076468A JPS5020557B1 (Direct) 1969-09-25 1969-09-25
JP8622269 1969-10-29
JP8791669 1969-10-31

Publications (2)

Publication Number Publication Date
NL7013667A true NL7013667A (Direct) 1971-03-18
NL155116B NL155116B (nl) 1977-11-15

Family

ID=27465579

Family Applications (1)

Application Number Title Priority Date Filing Date
NL707013667A NL155116B (nl) 1969-09-16 1970-09-16 Werkwijze ter vervaardiging van een magnetisch materiaal, alsmede het aldus verkregen magnetische materiaal.

Country Status (4)

Country Link
US (1) US3770500A (Direct)
DE (1) DE2045842C3 (Direct)
FR (1) FR2061051A5 (Direct)
NL (1) NL155116B (Direct)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2225796A1 (de) * 1971-05-27 1972-12-14 Tdk Electronics Co Ltd Verfahren zur Herstellung von magnetischem Material in Pulverform
US4137342A (en) 1976-10-29 1979-01-30 Minnesota Mining And Manufacturing Company Cobalt-doped acicular hyper-magnetite particles

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3920410A (en) * 1971-04-28 1975-11-18 Sherritt Gordon Mines Ltd Cobalt coated composite powder
JPS5613005B2 (Direct) * 1971-08-19 1981-03-25
US4064292A (en) * 1972-09-01 1977-12-20 Badische Anilin- & Soda-Fabrik, Aktiengesellschaft Manufacture of cobalt-modified γ-iron(III)oxides
US4010310A (en) * 1973-03-20 1977-03-01 Tdk Electronics Company, Limited Magnetic powder
JPS5719049B2 (Direct) * 1974-06-13 1982-04-20
JPS604566B2 (ja) * 1974-06-28 1985-02-05 富士写真フイルム株式会社 強磁性粉末及びこれを使用した磁気記録体の安定化方法
JPS6018129B2 (ja) * 1975-07-03 1985-05-09 凸版印刷株式会社 磁気記録用金属微粒子の製造方法
US4272510A (en) * 1976-04-26 1981-06-09 Smith Kendall O Magnetic attraction transfer process for use in solid phase radioimmunoassays and in other assay methods
US4150173A (en) * 1976-08-02 1979-04-17 Xerox Corporation Process of preparing transparent colored magnetic materials
US4501774A (en) * 1981-10-12 1985-02-26 Ishihara Sangyo Kaisha, Ltd. Process for the production of cobalt-containing magnetic iron oxide powder
US4657816A (en) * 1982-04-19 1987-04-14 Memorex Corporation Ferromagnetic recording materials
JPS6028025A (ja) * 1983-07-26 1985-02-13 Fuji Photo Film Co Ltd 磁気記録媒体
US4563184A (en) * 1983-10-17 1986-01-07 Bernard Korol Synthetic resin wound dressing and method of treatment using same
JPS6120302A (ja) * 1984-07-06 1986-01-29 Hitachi Maxell Ltd 強磁性粉末とその製造方法
DE3633130A1 (de) * 1986-09-30 1988-03-31 Basf Ag Feinteilige, sphaerische, zweischichtige feststoffteilchen
US5075169A (en) * 1988-06-08 1991-12-24 Toda Kogyo Corp. Plate-like composite ferrite particles for magnetic recording and process for producing the same
US9138727B2 (en) * 2012-12-12 2015-09-22 The United States of America, as represented by the Secretary of Commerce, The National Institute of Standards and Technology Iron—nickel core-shell nanoparticles

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3046158A (en) * 1958-12-31 1962-07-24 Fuji Photo Film Co Ltd Process for producing magnetic material
US3062680A (en) * 1960-06-20 1962-11-06 Sherritt Gordon Mines Ltd Hydrogenation catalysts for reducing reactions
US3042543A (en) * 1960-11-07 1962-07-03 Franklin Inst Of The State Of Magnetic particles and method of making same
US3147154A (en) * 1961-05-25 1964-09-01 Texaco Inc Method of depositing metal-containing material onto an extended surface
US3348969A (en) * 1963-11-06 1967-10-24 Gen Motors Corp Electroless nickel plating

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2225796A1 (de) * 1971-05-27 1972-12-14 Tdk Electronics Co Ltd Verfahren zur Herstellung von magnetischem Material in Pulverform
US4137342A (en) 1976-10-29 1979-01-30 Minnesota Mining And Manufacturing Company Cobalt-doped acicular hyper-magnetite particles

Also Published As

Publication number Publication date
US3770500A (en) 1973-11-06
DE2045842B2 (de) 1975-03-13
NL155116B (nl) 1977-11-15
FR2061051A5 (Direct) 1971-06-18
DE2045842C3 (de) 1975-10-23
DE2045842A1 (de) 1971-05-27

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Legal Events

Date Code Title Description
VJC Lapsed due to non-payment of the due maintenance fee for the patent or patent application
NL80 Information provided on patent owner name for an already discontinued patent

Owner name: TDK ELECTRON