JPS6331086B2 - - Google Patents

Info

Publication number
JPS6331086B2
JPS6331086B2 JP54086342A JP8634279A JPS6331086B2 JP S6331086 B2 JPS6331086 B2 JP S6331086B2 JP 54086342 A JP54086342 A JP 54086342A JP 8634279 A JP8634279 A JP 8634279A JP S6331086 B2 JPS6331086 B2 JP S6331086B2
Authority
JP
Japan
Prior art keywords
magnetic powder
iron oxide
cobalt
water
dispersant
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
JP54086342A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5610903A (en
Inventor
Haruo Ando
Fumio Togawa
Toshihiko Tanabe
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.)
Maxell Ltd
Original Assignee
Hitachi Maxell 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 Hitachi Maxell Ltd filed Critical Hitachi Maxell Ltd
Priority to JP8634279A priority Critical patent/JPS5610903A/ja
Priority to EP80102919A priority patent/EP0019894B1/en
Priority to DE8080102919T priority patent/DE3064620D1/de
Priority to US06/154,015 priority patent/US4299882A/en
Publication of JPS5610903A publication Critical patent/JPS5610903A/ja
Publication of JPS6331086B2 publication Critical patent/JPS6331086B2/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
    • G11B5/7013—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 dispersing agent

Landscapes

  • Compounds Of Iron (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Hard Magnetic Materials (AREA)
JP8634279A 1979-05-28 1979-07-07 Preparation of magnetic powder for magnetic recording Granted JPS5610903A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP8634279A JPS5610903A (en) 1979-07-07 1979-07-07 Preparation of magnetic powder for magnetic recording
EP80102919A EP0019894B1 (en) 1979-05-28 1980-05-24 Magnetic recording medium and process for its preparation
DE8080102919T DE3064620D1 (en) 1979-05-28 1980-05-24 Magnetic recording medium and process for its preparation
US06/154,015 US4299882A (en) 1979-05-28 1980-05-28 Magnetic recording medium and process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8634279A JPS5610903A (en) 1979-07-07 1979-07-07 Preparation of magnetic powder for magnetic recording

Publications (2)

Publication Number Publication Date
JPS5610903A JPS5610903A (en) 1981-02-03
JPS6331086B2 true JPS6331086B2 (enExample) 1988-06-22

Family

ID=13884174

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8634279A Granted JPS5610903A (en) 1979-05-28 1979-07-07 Preparation of magnetic powder for magnetic recording

Country Status (1)

Country Link
JP (1) JPS5610903A (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4774012A (en) * 1986-01-30 1988-09-27 Ishihara Sangyo Kaisha, Ltd. Cobalt-containing ferromagnetic iron oxide powder and process for producing the same
JPS63275028A (ja) * 1987-05-01 1988-11-11 Mihama Hisaharu コ−テイング材で処理された磁性体粒子
JP5639371B2 (ja) * 2010-03-10 2014-12-10 ゼネラル株式会社 水性磁性分散体および磁性インクジェットインク

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5446510A (en) * 1977-09-20 1979-04-12 Hitachi Maxell Magnetic recording medium

Also Published As

Publication number Publication date
JPS5610903A (en) 1981-02-03

Similar Documents

Publication Publication Date Title
JPS63109105A (ja) 強磁性金属微粒子の製造方法
JPS6331085B2 (enExample)
JPS6149251B2 (enExample)
JPS6331086B2 (enExample)
JPS59107924A (ja) コバルト含有磁性酸化鉄粉末の製造方法
JPS6332242B2 (enExample)
JPH059922B2 (enExample)
US4305752A (en) Metallic iron particles for magnetic recording
US4686142A (en) Process for the production of iron oxides epitaxially coated with cobalt the coated oxides and their cue
JPH037121B2 (enExample)
JPS5854487B2 (ja) 磁気記録材料用針状磁性酸化鉄粒子粉末の製造法
JPS6242858B2 (enExample)
JPS5939814B2 (ja) 磁気記録媒体の製造方法
JPH0755832B2 (ja) コバルト含有強磁性酸化鉄粉末の製造方法
JPH0243687B2 (enExample)
JPH0230563B2 (enExample)
JPS6334609B2 (enExample)
JPS6149252B2 (enExample)
JPH0430162B2 (enExample)
JPS5828809A (ja) 磁気記録媒体
JPH0480522B2 (enExample)
JPH0157482B2 (enExample)
JPH0521321B2 (enExample)
KR100241694B1 (ko) 강자성 산화철 분말 및 그 제조방법
JPH0425687B2 (enExample)