NL7902091A - METHOD FOR PREPARING MAGNETIC POWDER. - Google Patents

METHOD FOR PREPARING MAGNETIC POWDER.

Info

Publication number
NL7902091A
NL7902091A NL7902091A NL7902091A NL7902091A NL 7902091 A NL7902091 A NL 7902091A NL 7902091 A NL7902091 A NL 7902091A NL 7902091 A NL7902091 A NL 7902091A NL 7902091 A NL7902091 A NL 7902091A
Authority
NL
Netherlands
Prior art keywords
magnetic powder
preparing magnetic
preparing
powder
magnetic
Prior art date
Application number
NL7902091A
Other languages
Dutch (nl)
Other versions
NL186784C (en
NL186784B (en
Original Assignee
Kanto Denka Kogyo Kk
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 JP3015078A external-priority patent/JPS54122663A/en
Priority claimed from JP3015178A external-priority patent/JPS54122664A/en
Application filed by Kanto Denka Kogyo Kk filed Critical Kanto Denka Kogyo Kk
Publication of NL7902091A publication Critical patent/NL7902091A/en
Publication of NL186784B publication Critical patent/NL186784B/en
Application granted granted Critical
Publication of NL186784C publication Critical patent/NL186784C/en

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
    • H01F1/065—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/17—Metallic particles coated with metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
NLAANVRAGE7902091,A 1978-03-16 1979-03-16 METHOD FOR PREPARING A MAGNETIC, IRON-CONTAINING POWDER NL186784C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3015078A JPS54122663A (en) 1978-03-16 1978-03-16 Production of magnetic powder for magnetic recording based on iron
JP3015178A JPS54122664A (en) 1978-03-16 1978-03-16 Production of magnetic powder for magnetic recording based on iron

Publications (3)

Publication Number Publication Date
NL7902091A true NL7902091A (en) 1979-09-18
NL186784B NL186784B (en) 1990-09-17
NL186784C NL186784C (en) 1991-02-18

Family

ID=26368438

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7902091,A NL186784C (en) 1978-03-16 1979-03-16 METHOD FOR PREPARING A MAGNETIC, IRON-CONTAINING POWDER

Country Status (4)

Country Link
DE (1) DE2909995C2 (en)
FR (1) FR2420193A1 (en)
GB (1) GB2016526B (en)
NL (1) NL186784C (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4316738A (en) * 1979-02-02 1982-02-23 Ampex Corporation Economical process for producing metal particles for magnetic recording
US4310349A (en) * 1979-02-02 1982-01-12 Ampex Corporation Highly orientable iron particles
US4256484A (en) 1979-07-30 1981-03-17 Pfizer Inc. Metallic iron particles for magnetic recording
US4305752A (en) 1979-07-30 1981-12-15 Pfizer Inc. Metallic iron particles for magnetic recording
JPS56109827A (en) * 1980-02-05 1981-08-31 Mitsui Toatsu Chem Inc Manufacture of iron compound particle for magnetic recording medium
JPS56114833A (en) * 1980-02-08 1981-09-09 Mitsui Toatsu Chem Inc Production of fine particle of iron compound for magnetic recording
EP0041257B1 (en) * 1980-05-30 1984-11-14 Hitachi Maxell Ltd. Process for preparing ferromagnetic particles comprising metallic iron
US4305753A (en) 1980-07-31 1981-12-15 Hercules Incorporated Process for producing ferromagnetic metallic particles
JPS57183627A (en) * 1981-05-07 1982-11-12 Fuji Photo Film Co Ltd Magnetic recording medium
DE3228659A1 (en) * 1982-07-31 1984-02-02 Bayer Ag, 5090 Leverkusen METHOD FOR PRODUCING COBALT-EPITAXIAL-COATED IRON OXIDES FOR MAGNETIC RECORDING
US4437881A (en) * 1982-07-31 1984-03-20 Toda Kogyo Corp. Acicular ferromagnetic alloy particles and process for producing said particles
US4544612A (en) * 1982-09-22 1985-10-01 Nippon Telegraph & Telephone Public Corporation Iron oxide magnetic film and process for fabrication thereof
JPS5999706A (en) * 1982-11-29 1984-06-08 Kanto Denka Kogyo Kk Ferromagnetic metal powder for magnetic recording and manufacture thereof
JPS59153810A (en) * 1983-02-22 1984-09-01 Chisso Corp Production of ferromagnetic fine metallic particle
JPS59157204A (en) * 1983-02-23 1984-09-06 Chisso Corp Manufacture of ferromagnetic metallic fine particle
CA1226456A (en) * 1984-01-12 1987-09-08 Michael J. Pryor Method and apparatus for producing acicular iron or iron alloy particles
US5102732A (en) * 1988-07-15 1992-04-07 Konica Corporation Magnetic recording medium

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE527378A (en) *
DE1247026B (en) * 1965-01-09 1967-08-10 Basf Ag Process for the production of magnetizable metallic particles suitable for the production of magnetogram carriers
JPS4922630B1 (en) * 1970-06-23 1974-06-10
DE2212934A1 (en) * 1972-03-17 1973-09-20 Philips Nv Iron powder prodn for magnetic recording - by redn of needle-like crystals of iron oxide or its hydrate in presence of
NL167729C (en) * 1973-05-03 1982-01-18 Philips Nv METHOD FOR PREPARING A MAJOR METAL POWDER

Also Published As

Publication number Publication date
FR2420193A1 (en) 1979-10-12
NL186784C (en) 1991-02-18
NL186784B (en) 1990-09-17
GB2016526B (en) 1982-11-03
DE2909995C2 (en) 1984-06-28
DE2909995A1 (en) 1979-09-27
FR2420193B1 (en) 1983-10-21
GB2016526A (en) 1979-09-26

Similar Documents

Publication Publication Date Title
NL7904536A (en) METHOD FOR MAKING PARTICLES.
NL7603604A (en) METHOD FOR PREPARING ALKES.
NL7707167A (en) METHOD FOR PREPARING POLYETHENE.
NL7902091A (en) METHOD FOR PREPARING MAGNETIC POWDER.
NL188800C (en) METHOD FOR PREPARING ADIPONITRIL.
NL7900892A (en) METHOD FOR PREPARING AMINES.
NL7904585A (en) PROCESS FOR PREPARING 1-HYDROXYCALCIFEROL DERIVATIVES.
NL7903975A (en) PROCESS FOR PREPARING PREGNAN DERIVATIVES.
NL7900904A (en) METHOD FOR SINTERING POWDER METAL PARTS.
NL7805119A (en) METHOD FOR PREPARING ALKES.
NL7903148A (en) PROCESS FOR PREPARING METHYL FORMIAATE.
NL7809713A (en) METHOD FOR PREPARING 7-AZABENZIMIDAZOLS
NL7604355A (en) METHOD FOR PREPARING 5-ACETOACETYL-AMINOBENZIMIDAZOLONE.
NL7705879A (en) METHOD FOR PREPARING SUBSTITUTED THIAZOLS
NL186573C (en) METHOD FOR PREPARING NATURAL KALIMER CAPTIDES
NL7702100A (en) METHOD FOR PREPARING UBICHINON-10.
NL7904387A (en) METABOLITES AND METHODS FOR PREPARING AND USING THESE METABOLITES.
NL188941C (en) METHOD FOR PREPARING CARBONYL SULFIDE
NL7704101A (en) METHOD FOR PREPARING HYDROXYKETONE.
NL181436C (en) PROCESS FOR PREPARING POLYACETALCOPOLYMERS.
NL7902588A (en) METHOD OF PREPARING THIOXANTHONES.
NL7901788A (en) PROCESS FOR PREPARING SUBSTITUTED PYRIDINS.
NL7902023A (en) METHOD FOR PREPARING STYRENE RESINS
NL7705744A (en) METHOD FOR PREPARING ALDEHYDEN.
NL184071C (en) METHOD FOR PREPARING FERRITE SINGLE CRYSTALS

Legal Events

Date Code Title Description
A1A A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
V4 Discontinued because of reaching the maximum lifetime of a patent

Free format text: 19990316