FR2530370B1 - Procede de production d'oxydes de fer ferromagnetiques contenant du cobalt et du fer ferreux, pouvant etre utilises pour la fabrication de bandes magnetiques - Google Patents
Procede de production d'oxydes de fer ferromagnetiques contenant du cobalt et du fer ferreux, pouvant etre utilises pour la fabrication de bandes magnetiquesInfo
- Publication number
- FR2530370B1 FR2530370B1 FR8311713A FR8311713A FR2530370B1 FR 2530370 B1 FR2530370 B1 FR 2530370B1 FR 8311713 A FR8311713 A FR 8311713A FR 8311713 A FR8311713 A FR 8311713A FR 2530370 B1 FR2530370 B1 FR 2530370B1
- Authority
- FR
- France
- Prior art keywords
- manufacture
- magnetic tapes
- containing cobalt
- oxides containing
- producing ferromagnetic
- 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
Links
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 title 1
- 239000010941 cobalt Substances 0.000 title 1
- 229910017052 cobalt Inorganic materials 0.000 title 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 title 1
- 230000005294 ferromagnetic effect Effects 0.000 title 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title 1
- 235000013980 iron oxide Nutrition 0.000 title 1
- 230000005291 magnetic effect Effects 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
- C01G49/06—Ferric oxide [Fe2O3]
-
- 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
- G11B5/70652—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 gamma - Fe2 O3
- G11B5/70668—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 gamma - Fe2 O3 containing a dopant
- G11B5/70673—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 gamma - Fe2 O3 containing a dopant containing Co
-
- 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
- G11B5/70684—Ferro-ferrioxydes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Hard Magnetic Materials (AREA)
- Compounds Of Iron (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57123918A JPS5918120A (ja) | 1982-07-16 | 1982-07-16 | コバルト及び第一鉄含有強磁性酸化鉄の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2530370A1 FR2530370A1 (fr) | 1984-01-20 |
| FR2530370B1 true FR2530370B1 (fr) | 1986-02-07 |
Family
ID=14872560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8311713A Expired FR2530370B1 (fr) | 1982-07-16 | 1983-07-13 | Procede de production d'oxydes de fer ferromagnetiques contenant du cobalt et du fer ferreux, pouvant etre utilises pour la fabrication de bandes magnetiques |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4551327A (fr) |
| JP (1) | JPS5918120A (fr) |
| KR (1) | KR890003881B1 (fr) |
| DE (1) | DE3325613A1 (fr) |
| FR (1) | FR2530370B1 (fr) |
| GB (1) | GB2125021B (fr) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59107924A (ja) * | 1982-12-08 | 1984-06-22 | Ishihara Sangyo Kaisha Ltd | コバルト含有磁性酸化鉄粉末の製造方法 |
| US4774012A (en) * | 1986-01-30 | 1988-09-27 | Ishihara Sangyo Kaisha, Ltd. | Cobalt-containing ferromagnetic iron oxide powder and process for producing the same |
| DE3616096A1 (de) * | 1986-05-13 | 1987-11-19 | Basf Ag | Verfahren zur herstellung kobalthaltiger, nadelfoermiger, magnetischer eisenoxide |
| JPH02263407A (ja) * | 1989-04-04 | 1990-10-26 | Showa Denko Kk | 磁気記録用磁性酸化鉄粉の連続製造法と装置 |
| FR2654092B1 (fr) * | 1989-11-08 | 1992-03-13 | Nancy Ctre Internal Eau | Ferrates de metaux alcalins ou alcalino-terreux leur preparation et leurs applications industrielles. |
| DE4319572A1 (de) * | 1993-06-14 | 1994-12-15 | Toda Kogyo Corp | Co-haltige Eisenoxidpigmente, Verfahren zu ihrer Herstellung und diese enthaltende magnetische Medien |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5236751B2 (fr) * | 1973-08-07 | 1977-09-17 | ||
| JPS5829604B2 (ja) * | 1975-07-02 | 1983-06-23 | 富士写真フイルム株式会社 | キヨウジセイフンマツノセイホウ |
| JPS608606B2 (ja) * | 1975-07-02 | 1985-03-04 | 富士写真フイルム株式会社 | 強磁性粉末の製法 |
| JPS525497A (en) * | 1975-07-02 | 1977-01-17 | Fuji Photo Film Co Ltd | Ferromagnetic grit manufacturing process |
| JPS5236751A (en) * | 1975-09-17 | 1977-03-22 | Nissin Electric Co Ltd | Capacitor |
| JPS6044254B2 (ja) * | 1977-03-16 | 1985-10-02 | 富士写真フイルム株式会社 | 強磁性粉末の製造方法 |
| GB1603213A (en) * | 1977-04-20 | 1981-11-18 | Hitachi Maxell | Cobalt containing iron oxide magnetic particles and method for the preparation of the same |
| JPS54106895A (en) * | 1978-02-08 | 1979-08-22 | Fuji Photo Film Co Ltd | Ferromagnetic powder |
| NL7902902A (nl) * | 1978-04-17 | 1979-10-19 | Montedison Spa | Werkwijze ter bereiding van magnetische poeders op basis van gamma-fe203, de aldus verkregen poeders en magnetische banden, die deze poeders bevatten. |
| JPS5556605A (en) * | 1978-10-20 | 1980-04-25 | Hitachi Maxell Ltd | Magnetic recording medium |
| DE2905351A1 (de) * | 1979-02-13 | 1980-08-21 | Basf Ag | Verfahren zur herstellung von nadelfoermigem kobalthaltigem, magnetischem eisenoxid |
| JPS5648444A (en) * | 1979-09-28 | 1981-05-01 | Sun Wave Ind | Tank gody mounting construction |
| JPS56104721A (en) * | 1980-01-22 | 1981-08-20 | Tdk Corp | Preparation of magnetic powder |
-
1982
- 1982-07-16 JP JP57123918A patent/JPS5918120A/ja active Granted
-
1983
- 1983-07-11 GB GB08318707A patent/GB2125021B/en not_active Expired
- 1983-07-12 US US06/513,033 patent/US4551327A/en not_active Expired - Lifetime
- 1983-07-13 KR KR1019830003185A patent/KR890003881B1/ko not_active IP Right Cessation
- 1983-07-13 FR FR8311713A patent/FR2530370B1/fr not_active Expired
- 1983-07-15 DE DE19833325613 patent/DE3325613A1/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| KR840005416A (ko) | 1984-11-12 |
| GB2125021A (en) | 1984-02-29 |
| DE3325613A1 (de) | 1984-01-19 |
| KR890003881B1 (ko) | 1989-10-10 |
| GB2125021B (en) | 1985-06-26 |
| US4551327A (en) | 1985-11-05 |
| FR2530370A1 (fr) | 1984-01-20 |
| DE3325613C2 (fr) | 1990-02-08 |
| GB8318707D0 (en) | 1983-08-10 |
| JPS5918120A (ja) | 1984-01-30 |
| JPH0114175B2 (fr) | 1989-03-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ER | Errata listed in the french official journal (bopi) |
Free format text: 03/84 |
|
| ST | Notification of lapse | ||
| ST | Notification of lapse | ||
| ST | Notification of lapse |