JPS4921695A - - Google Patents
Info
- Publication number
- JPS4921695A JPS4921695A JP48044697A JP4469773A JPS4921695A JP S4921695 A JPS4921695 A JP S4921695A JP 48044697 A JP48044697 A JP 48044697A JP 4469773 A JP4469773 A JP 4469773A JP S4921695 A JPS4921695 A JP S4921695A
- Authority
- JP
- Japan
- 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
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
- G11B5/70642—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
-
- 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
-
- 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
Landscapes
- Compounds Of Iron (AREA)
- Hard Magnetic Materials (AREA)
- Soft Magnetic Materials (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7214215A FR2180575B1 (https=) | 1972-04-21 | 1972-04-21 | |
| FR7301110A FR2213919A2 (en) | 1973-01-12 | 1973-01-12 | Solid solns of gamma-ferric oxide with divalent metals - - for use in magnetic recording tapes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4921695A true JPS4921695A (https=) | 1974-02-26 |
| JPS5649856B2 JPS5649856B2 (https=) | 1981-11-25 |
Family
ID=26217047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4469773A Expired JPS5649856B2 (https=) | 1972-04-21 | 1973-04-21 |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5649856B2 (https=) |
| CH (1) | CH569676A5 (https=) |
| DE (1) | DE2320182C2 (https=) |
| GB (1) | GB1432808A (https=) |
| IT (1) | IT982802B (https=) |
| NL (1) | NL180000C (https=) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63501834A (ja) * | 1985-09-30 | 1988-07-21 | サントル・ナシヨナル・ド・ラ・ルシエルシエ・シヤンテイフイツク・（セ・エ−ヌ・エ−ル・エス） | 間隙スピネル構造の粒状磁性酸化物、その製造方法およびその利用 |
| JP2019536716A (ja) * | 2017-07-21 | 2019-12-19 | ネオ−ナノメディクス， インコーポレイテッド | 生体適合的な交流磁場における巨大自己発熱可能なアルカリ金属またはアルカリ土類金属がドーピングされた酸化鉄ナノ粒子及びその製造方法 |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4096080A (en) * | 1973-12-26 | 1978-06-20 | Agence Nationale De Valorisation De La Recherche (Anvar) | Solid solutions of magnetic oxides and method of preparation |
| DE2639250C2 (de) * | 1976-09-01 | 1985-12-12 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Herstellung von nadelförmigem, kobaltdotiertem magnetischem Eisenoxid |
| DE2650890C2 (de) * | 1976-11-06 | 1985-12-12 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Herstellung von nadelförmigem, kobaltdotiertem, magnetischem Eisenoxid |
| DE2705967C2 (de) * | 1977-02-12 | 1990-01-04 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Herstellung von nadelförmigem kobalthaltigem magnetischem Eisenoxid |
| DE2935444A1 (de) * | 1979-09-01 | 1981-03-19 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von nadelfoermigen ferrimagnetischem eisenoxid |
| RU2761198C1 (ru) * | 2021-04-16 | 2021-12-06 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Ивановский государственный химико-технологический университет" | Способ получения феррита кобальта |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB679172A (en) * | 1948-04-23 | 1952-09-17 | Standard Telephones Cables Ltd | Improvements in or relating to the production of metal or metal oxide powders and products therefrom |
| US3317574A (en) * | 1961-07-21 | 1967-05-02 | Sony Corp | Method of making finely divided ferrous metal salts of organic acids |
-
1973
- 1973-04-11 NL NL7305050A patent/NL180000C/xx not_active IP Right Cessation
- 1973-04-19 IT IT2319773A patent/IT982802B/it active
- 1973-04-19 CH CH572173A patent/CH569676A5/xx not_active IP Right Cessation
- 1973-04-19 GB GB1888473A patent/GB1432808A/en not_active Expired
- 1973-04-19 DE DE19732320182 patent/DE2320182C2/de not_active Expired
- 1973-04-21 JP JP4469773A patent/JPS5649856B2/ja not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63501834A (ja) * | 1985-09-30 | 1988-07-21 | サントル・ナシヨナル・ド・ラ・ルシエルシエ・シヤンテイフイツク・（セ・エ−ヌ・エ−ル・エス） | 間隙スピネル構造の粒状磁性酸化物、その製造方法およびその利用 |
| JP2019536716A (ja) * | 2017-07-21 | 2019-12-19 | ネオ−ナノメディクス， インコーポレイテッド | 生体適合的な交流磁場における巨大自己発熱可能なアルカリ金属またはアルカリ土類金属がドーピングされた酸化鉄ナノ粒子及びその製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2320182C2 (de) | 1982-07-01 |
| NL7305050A (https=) | 1973-10-23 |
| JPS5649856B2 (https=) | 1981-11-25 |
| CH569676A5 (https=) | 1975-11-28 |
| DE2320182A1 (de) | 1973-10-31 |
| NL180000C (nl) | 1986-12-16 |
| IT982802B (it) | 1974-10-21 |
| GB1432808A (en) | 1976-04-22 |