JPH0123924B2 - - Google Patents

Info

Publication number
JPH0123924B2
JPH0123924B2 JP54038352A JP3835279A JPH0123924B2 JP H0123924 B2 JPH0123924 B2 JP H0123924B2 JP 54038352 A JP54038352 A JP 54038352A JP 3835279 A JP3835279 A JP 3835279A JP H0123924 B2 JPH0123924 B2 JP H0123924B2
Authority
JP
Japan
Prior art keywords
cro
coercive force
magnetization
magnetic
electroless plating
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
Application number
JP54038352A
Other languages
English (en)
Japanese (ja)
Other versions
JPS55132005A (en
Inventor
Ken Namikawa
Takeshi Mori
Minoru Sato
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.)
TDK Corp
Toppan Inc
Original Assignee
TDK Corp
Toppan Printing 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 TDK Corp, Toppan Printing Co Ltd filed Critical TDK Corp
Priority to JP3835279A priority Critical patent/JPS55132005A/ja
Publication of JPS55132005A publication Critical patent/JPS55132005A/ja
Publication of JPH0123924B2 publication Critical patent/JPH0123924B2/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
    • G11B5/706—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
    • G11B5/70636—CrO2

Landscapes

  • Hard Magnetic Materials (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
JP3835279A 1979-04-02 1979-04-02 Ferromagnetic powder and manufacture therefor Granted JPS55132005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3835279A JPS55132005A (en) 1979-04-02 1979-04-02 Ferromagnetic powder and manufacture therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3835279A JPS55132005A (en) 1979-04-02 1979-04-02 Ferromagnetic powder and manufacture therefor

Publications (2)

Publication Number Publication Date
JPS55132005A JPS55132005A (en) 1980-10-14
JPH0123924B2 true JPH0123924B2 (enrdf_load_stackoverflow) 1989-05-09

Family

ID=12522878

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3835279A Granted JPS55132005A (en) 1979-04-02 1979-04-02 Ferromagnetic powder and manufacture therefor

Country Status (1)

Country Link
JP (1) JPS55132005A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3228659A1 (de) * 1982-07-31 1984-02-02 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von cobalt-epitaxial-beschichteten eisenoxiden fuer die magnetaufzeichnung
JPS6120302A (ja) * 1984-07-06 1986-01-29 Hitachi Maxell Ltd 強磁性粉末とその製造方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7306877A (enrdf_load_stackoverflow) * 1972-05-24 1973-11-27

Also Published As

Publication number Publication date
JPS55132005A (en) 1980-10-14

Similar Documents

Publication Publication Date Title
US3902888A (en) Process for preparing ferromagnetic alloy powder
US3977985A (en) Magnetic recording medium comprising cobalt or cobalt alloy coated particles of spicular magnetite
US3958068A (en) Process for the production of powdered magnetic material
US4303699A (en) Method of manufacturing magnetic powder
JPH033361B2 (enrdf_load_stackoverflow)
JPH0123924B2 (enrdf_load_stackoverflow)
US4683167A (en) Magnetic iron oxide pigment and recording media
JPH0633116A (ja) 磁気記録媒体用強磁性金属粉末及びその製造方法
US4803132A (en) Magnetic recording medium
JP3337046B2 (ja) コバルトと鉄とを主成分とする紡錘状金属磁性粒子粉末及びその製造法
JPS6132259B2 (enrdf_load_stackoverflow)
JPS62204B2 (enrdf_load_stackoverflow)
JPS6242858B2 (enrdf_load_stackoverflow)
JP3303896B2 (ja) 紡錘状を呈した鉄を主成分とする金属磁性粒子粉末及びその製造法
JP3582578B2 (ja) 鉄を主成分とする針状合金磁性粒子粉末
JPH0732094B2 (ja) 針状強磁性酸化鉄磁性粉
JPS6136684B2 (enrdf_load_stackoverflow)
JP2897794B2 (ja) コバルト被着型磁性酸化鉄粒子粉末の製造法
JPH0561206B2 (enrdf_load_stackoverflow)
JPH038083B2 (enrdf_load_stackoverflow)
JPS60165703A (ja) 針状強磁性酸化鉄磁性粉
JPH0470687B2 (enrdf_load_stackoverflow)
JPH03199301A (ja) 金属磁性粉末、その製造法及び磁気記録媒体
JPS6116024A (ja) 磁気記録媒体
JPS6132258B2 (enrdf_load_stackoverflow)