JPS4957397A - - Google Patents
Info
- Publication number
- JPS4957397A JPS4957397A JP47098511A JP9851172A JPS4957397A JP S4957397 A JPS4957397 A JP S4957397A JP 47098511 A JP47098511 A JP 47098511A JP 9851172 A JP9851172 A JP 9851172A JP S4957397 A JPS4957397 A JP S4957397A
- 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
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- 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
-
- 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
- G11B5/70647—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 with a skin
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/42—Magnetic properties
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Dermatology (AREA)
- General Health & Medical Sciences (AREA)
- Hard Magnetic Materials (AREA)
- Compounds Of Iron (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP47098511A JPS5221720B2 (US07223432-20070529-C00017.png) | 1972-09-30 | 1972-09-30 | |
GB4504473A GB1437409A (en) | 1972-09-30 | 1973-09-26 | Methods of making acicular goethite powder |
CA182,127A CA1064223A (en) | 1972-09-30 | 1973-09-28 | Method of making goethite powder |
DE19732349112 DE2349112A1 (de) | 1972-09-30 | 1973-09-29 | Verfahren zur herstellung von goethitpulver |
US05/627,757 US4060596A (en) | 1972-09-30 | 1975-10-31 | Method of making goethite powder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP47098511A JPS5221720B2 (US07223432-20070529-C00017.png) | 1972-09-30 | 1972-09-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS4957397A true JPS4957397A (US07223432-20070529-C00017.png) | 1974-06-04 |
JPS5221720B2 JPS5221720B2 (US07223432-20070529-C00017.png) | 1977-06-13 |
Family
ID=14221659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP47098511A Expired JPS5221720B2 (US07223432-20070529-C00017.png) | 1972-09-30 | 1972-09-30 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5221720B2 (US07223432-20070529-C00017.png) |
CA (1) | CA1064223A (US07223432-20070529-C00017.png) |
DE (1) | DE2349112A1 (US07223432-20070529-C00017.png) |
GB (1) | GB1437409A (US07223432-20070529-C00017.png) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53127400A (en) * | 1977-04-13 | 1978-11-07 | Nippon Telegr & Teleph Corp <Ntt> | Production of goethite |
JPS54110999A (en) * | 1978-02-20 | 1979-08-30 | Nippon Telegr & Teleph Corp <Ntt> | Preparation of magnetic particulates |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH637212A5 (fr) * | 1980-04-29 | 1983-07-15 | Schweizerische Beratungsstelle | Appareil de reglage d'une fixation de securite montee sur un ski. |
-
1972
- 1972-09-30 JP JP47098511A patent/JPS5221720B2/ja not_active Expired
-
1973
- 1973-09-26 GB GB4504473A patent/GB1437409A/en not_active Expired
- 1973-09-28 CA CA182,127A patent/CA1064223A/en not_active Expired
- 1973-09-29 DE DE19732349112 patent/DE2349112A1/de active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53127400A (en) * | 1977-04-13 | 1978-11-07 | Nippon Telegr & Teleph Corp <Ntt> | Production of goethite |
JPS5523215B2 (US07223432-20070529-C00017.png) * | 1977-04-13 | 1980-06-21 | ||
JPS54110999A (en) * | 1978-02-20 | 1979-08-30 | Nippon Telegr & Teleph Corp <Ntt> | Preparation of magnetic particulates |
JPS5523774B2 (US07223432-20070529-C00017.png) * | 1978-02-20 | 1980-06-25 |
Also Published As
Publication number | Publication date |
---|---|
JPS5221720B2 (US07223432-20070529-C00017.png) | 1977-06-13 |
CA1064223A (en) | 1979-10-16 |
DE2349112A1 (de) | 1974-04-04 |
GB1437409A (en) | 1976-05-26 |