JPS52135895A - Process for preparing cobaltt modified acicular crystal magnetic ironoxide particle - Google Patents
Process for preparing cobaltt modified acicular crystal magnetic ironoxide particleInfo
- Publication number
- JPS52135895A JPS52135895A JP5298576A JP5298576A JPS52135895A JP S52135895 A JPS52135895 A JP S52135895A JP 5298576 A JP5298576 A JP 5298576A JP 5298576 A JP5298576 A JP 5298576A JP S52135895 A JPS52135895 A JP S52135895A
- Authority
- JP
- Japan
- Prior art keywords
- cobaltt
- ironoxide
- particle
- preparing
- acicular crystal
- 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
Links
Landscapes
- Compounds Of Iron (AREA)
- Hard Magnetic Materials (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5298576A JPS52135895A (en) | 1976-05-09 | 1976-05-09 | Process for preparing cobaltt modified acicular crystal magnetic ironoxide particle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5298576A JPS52135895A (en) | 1976-05-09 | 1976-05-09 | Process for preparing cobaltt modified acicular crystal magnetic ironoxide particle |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS52135895A true JPS52135895A (en) | 1977-11-14 |
JPS6149251B2 JPS6149251B2 (fr) | 1986-10-28 |
Family
ID=12930194
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5298576A Granted JPS52135895A (en) | 1976-05-09 | 1976-05-09 | Process for preparing cobaltt modified acicular crystal magnetic ironoxide particle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS52135895A (fr) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3017525A1 (de) * | 1979-05-11 | 1980-11-13 | Tdk Electronics Co Ltd | Verfahren zur herstellung von magnetpulver mit hoher koerzitivkraft |
JPS5857709A (ja) * | 1981-10-01 | 1983-04-06 | Agency Of Ind Science & Technol | 磁気記録媒体 |
FR2515412A1 (fr) * | 1981-10-12 | 1983-04-29 | Ishihara Mining & Chemical Co | Procede de production de poudre d'oxyde de fer magnetique contenant du cobalt |
JPS5867954U (ja) * | 1981-10-30 | 1983-05-09 | いすゞ自動車株式会社 | デイ−ゼルエンジンの排気還流制御装置 |
FR2519183A1 (fr) * | 1981-12-25 | 1983-07-01 | Ishihara Mining & Chemical Co | Procede de preparation d'une poudre d'oxyde de fer magnetique contenant du cobalt |
JPS58139407A (ja) * | 1982-02-13 | 1983-08-18 | Hitachi Maxell Ltd | 磁気記録媒体 |
JPS59130407A (ja) * | 1978-04-12 | 1984-07-27 | バイエル・アクチエンゲゼルシヤフト | 磁気信号記録用針状フエリ磁性酸化鉄粒子 |
JPS61229305A (ja) * | 1985-04-03 | 1986-10-13 | Sony Corp | 金属磁性粉末の製造方法 |
EP0201822A2 (fr) * | 1985-05-10 | 1986-11-20 | BASF Aktiengesellschaft | Procédé pour la fabrication d'oxydes de fer aciculaire contenant du cobalt |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3652334A (en) * | 1967-11-25 | 1972-03-28 | Agfa Gevaert Ag | Magnetic material and method of making the same |
JPS4974400A (fr) * | 1972-11-24 | 1974-07-18 |
-
1976
- 1976-05-09 JP JP5298576A patent/JPS52135895A/ja active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3652334A (en) * | 1967-11-25 | 1972-03-28 | Agfa Gevaert Ag | Magnetic material and method of making the same |
JPS4974400A (fr) * | 1972-11-24 | 1974-07-18 |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59130407A (ja) * | 1978-04-12 | 1984-07-27 | バイエル・アクチエンゲゼルシヤフト | 磁気信号記録用針状フエリ磁性酸化鉄粒子 |
JPH0126164B2 (fr) * | 1978-04-12 | 1989-05-22 | Bayer Ag | |
DE3017525A1 (de) * | 1979-05-11 | 1980-11-13 | Tdk Electronics Co Ltd | Verfahren zur herstellung von magnetpulver mit hoher koerzitivkraft |
JPS5857709A (ja) * | 1981-10-01 | 1983-04-06 | Agency Of Ind Science & Technol | 磁気記録媒体 |
JPS6048885B2 (ja) * | 1981-10-01 | 1985-10-30 | 工業技術院長 | 磁気記録媒体 |
FR2515412A1 (fr) * | 1981-10-12 | 1983-04-29 | Ishihara Mining & Chemical Co | Procede de production de poudre d'oxyde de fer magnetique contenant du cobalt |
JPS5867954U (ja) * | 1981-10-30 | 1983-05-09 | いすゞ自動車株式会社 | デイ−ゼルエンジンの排気還流制御装置 |
FR2519183A1 (fr) * | 1981-12-25 | 1983-07-01 | Ishihara Mining & Chemical Co | Procede de preparation d'une poudre d'oxyde de fer magnetique contenant du cobalt |
JPS58139407A (ja) * | 1982-02-13 | 1983-08-18 | Hitachi Maxell Ltd | 磁気記録媒体 |
JPS61229305A (ja) * | 1985-04-03 | 1986-10-13 | Sony Corp | 金属磁性粉末の製造方法 |
EP0201822A2 (fr) * | 1985-05-10 | 1986-11-20 | BASF Aktiengesellschaft | Procédé pour la fabrication d'oxydes de fer aciculaire contenant du cobalt |
EP0201822A3 (en) * | 1985-05-10 | 1989-03-22 | Basf Aktiengesellschaft | Process for the production of needle-shaped iron oxides containing cobalt |
Also Published As
Publication number | Publication date |
---|---|
JPS6149251B2 (fr) | 1986-10-28 |
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