JPH059922B2 - - Google Patents

Info

Publication number
JPH059922B2
JPH059922B2 JP57133369A JP13336982A JPH059922B2 JP H059922 B2 JPH059922 B2 JP H059922B2 JP 57133369 A JP57133369 A JP 57133369A JP 13336982 A JP13336982 A JP 13336982A JP H059922 B2 JPH059922 B2 JP H059922B2
Authority
JP
Japan
Prior art keywords
magnetic
cobalt
iron oxide
powder
silica
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.)
Expired - Lifetime
Application number
JP57133369A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5923505A (ja
Inventor
Kazuo Nakada
Seigo Maruo
Kyoshi Asano
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.)
Ishihara Sangyo Kaisha Ltd
Original Assignee
Ishihara Sangyo Kaisha 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 Ishihara Sangyo Kaisha Ltd filed Critical Ishihara Sangyo Kaisha Ltd
Priority to JP57133369A priority Critical patent/JPS5923505A/ja
Publication of JPS5923505A publication Critical patent/JPS5923505A/ja
Publication of JPH059922B2 publication Critical patent/JPH059922B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G11B5/712—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 surface treatment or coating of magnetic particles

Landscapes

  • Compounds Of Iron (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Hard Magnetic Materials (AREA)
JP57133369A 1982-07-30 1982-07-30 磁性粉末 Granted JPS5923505A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57133369A JPS5923505A (ja) 1982-07-30 1982-07-30 磁性粉末

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57133369A JPS5923505A (ja) 1982-07-30 1982-07-30 磁性粉末

Publications (2)

Publication Number Publication Date
JPS5923505A JPS5923505A (ja) 1984-02-07
JPH059922B2 true JPH059922B2 (enrdf_load_html_response) 1993-02-08

Family

ID=15103111

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57133369A Granted JPS5923505A (ja) 1982-07-30 1982-07-30 磁性粉末

Country Status (1)

Country Link
JP (1) JPS5923505A (enrdf_load_html_response)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0755828B2 (ja) * 1987-08-28 1995-06-14 戸田工業株式会社 磁性粒子粉末及びその製造法
JPH0676218B2 (ja) * 1988-02-10 1994-09-28 石原産業株式会社 コバルト含有強磁性酸化鉄の製造方法
JPH0755831B2 (ja) * 1988-05-25 1995-06-14 戸田工業株式会社 磁性粒子粉末及びその製造法
JPH0755832B2 (ja) * 1988-09-19 1995-06-14 石原産業株式会社 コバルト含有強磁性酸化鉄粉末の製造方法
JP2684232B2 (ja) * 1990-08-13 1997-12-03 富士写真フイルム株式会社 ハロゲン化銀写真感光材料
JP2670901B2 (ja) * 1990-11-27 1997-10-29 富士写真フイルム株式会社 透明度の改良された磁性材料
JP3398404B2 (ja) * 1992-11-11 2003-04-21 戸田工業株式会社 磁気記録用磁性粒子粉末の製造法
JP3476291B2 (ja) 1995-11-22 2003-12-10 富士写真フイルム株式会社 箔押し方法及び装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2815712A1 (de) * 1978-04-12 1979-10-25 Bayer Ag Eisenoxide zur magnetischen signalaufzeichnung und verfahren zu deren herstellung
JPS5729523A (en) * 1980-07-26 1982-02-17 Sumitomo Metal Ind Ltd Preventing method for pickup in hearth roll type heat treatment furnace

Also Published As

Publication number Publication date
JPS5923505A (ja) 1984-02-07

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