DE3405602A1 - Magnetisches ferritmaterial fuer die magnetische aufzeichnung und verfahren zu seiner herstellung - Google Patents

Magnetisches ferritmaterial fuer die magnetische aufzeichnung und verfahren zu seiner herstellung

Info

Publication number
DE3405602A1
DE3405602A1 DE19843405602 DE3405602A DE3405602A1 DE 3405602 A1 DE3405602 A1 DE 3405602A1 DE 19843405602 DE19843405602 DE 19843405602 DE 3405602 A DE3405602 A DE 3405602A DE 3405602 A1 DE3405602 A1 DE 3405602A1
Authority
DE
Germany
Prior art keywords
magnetic
ferrite
mixture
metal atom
group
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
DE19843405602
Other languages
German (de)
English (en)
Other versions
DE3405602C2 (enExample
Inventor
Kouzi Kanagawa Kamiyama
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of DE3405602A1 publication Critical patent/DE3405602A1/de
Application granted granted Critical
Publication of DE3405602C2 publication Critical patent/DE3405602C2/de
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/0018—Mixed oxides or hydroxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/0018—Mixed oxides or hydroxides
    • C01G49/0036—Mixed oxides or hydroxides containing one alkaline earth metal, magnesium or lead
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/0018—Mixed oxides or hydroxides
    • C01G49/0063—Mixed oxides or hydroxides containing zinc
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/009—Compounds containing iron, with or without oxygen or hydrogen, and containing two or more other elements
    • 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
    • G11B5/70678—Ferrites
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/02—Amorphous compounds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/42—Magnetic properties

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Composite Materials (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Geology (AREA)
  • Hard Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)
  • Magnetic Ceramics (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
DE19843405602 1983-02-16 1984-02-16 Magnetisches ferritmaterial fuer die magnetische aufzeichnung und verfahren zu seiner herstellung Granted DE3405602A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58024253A JPS59151339A (ja) 1983-02-16 1983-02-16 磁気記録用フエライト磁性体とその製法

Publications (2)

Publication Number Publication Date
DE3405602A1 true DE3405602A1 (de) 1984-08-16
DE3405602C2 DE3405602C2 (enExample) 1989-08-24

Family

ID=12133080

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843405602 Granted DE3405602A1 (de) 1983-02-16 1984-02-16 Magnetisches ferritmaterial fuer die magnetische aufzeichnung und verfahren zu seiner herstellung

Country Status (3)

Country Link
US (1) US4543198A (enExample)
JP (1) JPS59151339A (enExample)
DE (1) DE3405602A1 (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0164251A3 (en) * 1984-05-31 1986-12-10 Toda Kogyo Corp Barium ferrite particles for magnetic recording media
US4781852A (en) * 1986-10-24 1988-11-01 Olin Corporation Process for making selected doped barium and strontium hexaferrite particles
EP0310323A1 (en) * 1987-09-30 1989-04-05 Kabushiki Kaisha Toshiba Magnetic powder for high-density magnetic recording and magnetic recording medium using the same

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59151341A (ja) * 1983-02-16 1984-08-29 Fuji Photo Film Co Ltd 磁気記録用フエライト磁性粉の製法
IT1199501B (it) * 1984-10-12 1988-12-30 Consiglio Nazionale Ricerche Metodo per la preparazione di polveri fini di ferriti esagonali in particolare per la registrazione magnetica
JPH0690969B2 (ja) * 1984-11-30 1994-11-14 株式会社東芝 磁気記録媒体用磁性粉及びそれを用いた磁気記録媒体
US4690861A (en) * 1985-03-11 1987-09-01 Ricoh Co., Ltd. Magneto optical recording medium
JPH0785301B2 (ja) * 1985-07-16 1995-09-13 株式会社東芝 磁気記録用磁性粉及びそれを用いた磁気記録用媒体
FR2587990B1 (fr) * 1985-09-30 1987-11-13 Centre Nat Rech Scient Compositions d'oxydes magnetiques particulaires a structure de type spinelle lacunaire, leur preparation et leur application
JPH0740380B2 (ja) * 1985-11-19 1995-05-01 株式会社リコー 光磁気記録材料
JPS6391847A (ja) * 1986-10-03 1988-04-22 Ricoh Co Ltd 光磁気記録媒体
JPH0630297B2 (ja) * 1988-02-03 1994-04-20 ティーディーケイ株式会社 フェライト焼結体およびチップ部品
JPH0289218A (ja) * 1988-09-26 1990-03-29 Hitachi Maxell Ltd 磁気記録媒体
WO1990005367A1 (fr) * 1988-11-08 1990-05-17 Tdk Corporation Poudre magnetique, procede de production, support d'enregistrement magnetique et procede d'enregistrement magnetique
US5378384A (en) * 1991-09-19 1995-01-03 Minnesota Mining And Manufacturing Company Process of making hexagonal magnetic ferrite pigment for high density magnetic recording applications
US5616414A (en) * 1993-12-28 1997-04-01 Imation Corp. Hexagonal magnetic ferrite pigment for high density magnetic recording applications
WO2016040481A1 (en) * 2014-09-09 2016-03-17 The Curators Of The University Of Missouri Glass derived nanoparticles for nerve tissue repair

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3162603A (en) * 1963-02-01 1964-12-22 Jack A Kohn Method of growing iridium substituted single crystal using bismuth oxide flux
JPS5562144A (en) * 1978-10-31 1980-05-10 Hitachi Metals Ltd Corrosion resistant, high permeability alloy
US4341648A (en) * 1979-11-08 1982-07-27 Tokyo Shibaura Denki Kabushiki Kaisha Method for manufacturing magnetic powder for high density magnetic recording

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5756329A (en) * 1980-09-22 1982-04-03 Toshiba Corp Manufacture of magnetic powder for magnetic recording medium

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3162603A (en) * 1963-02-01 1964-12-22 Jack A Kohn Method of growing iridium substituted single crystal using bismuth oxide flux
JPS5562144A (en) * 1978-10-31 1980-05-10 Hitachi Metals Ltd Corrosion resistant, high permeability alloy
US4341648A (en) * 1979-11-08 1982-07-27 Tokyo Shibaura Denki Kabushiki Kaisha Method for manufacturing magnetic powder for high density magnetic recording

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0164251A3 (en) * 1984-05-31 1986-12-10 Toda Kogyo Corp Barium ferrite particles for magnetic recording media
US4781852A (en) * 1986-10-24 1988-11-01 Olin Corporation Process for making selected doped barium and strontium hexaferrite particles
EP0310323A1 (en) * 1987-09-30 1989-04-05 Kabushiki Kaisha Toshiba Magnetic powder for high-density magnetic recording and magnetic recording medium using the same

Also Published As

Publication number Publication date
JPS59151339A (ja) 1984-08-29
DE3405602C2 (enExample) 1989-08-24
US4543198A (en) 1985-09-24
JPH0239844B2 (enExample) 1990-09-07

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition