JPS5229840B1 - - Google Patents
Info
- Publication number
- JPS5229840B1 JPS5229840B1 JP47053055A JP5305572A JPS5229840B1 JP S5229840 B1 JPS5229840 B1 JP S5229840B1 JP 47053055 A JP47053055 A JP 47053055A JP 5305572 A JP5305572 A JP 5305572A JP S5229840 B1 JPS5229840 B1 JP S5229840B1
- 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.)
- Pending
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
- G11B5/70636—CrO2
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G37/00—Compounds of chromium
- C01G37/02—Oxides or hydrates thereof
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Hard Magnetic Materials (AREA)
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US73210968A | 1968-05-27 | 1968-05-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5229840B1 true JPS5229840B1 (en) | 1977-08-04 |
Family
ID=24942226
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP44040257A Pending JPS4819074B1 (en) | 1968-05-27 | 1969-05-26 | |
| JP47053055A Pending JPS5229840B1 (en) | 1968-05-27 | 1972-05-30 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP44040257A Pending JPS4819074B1 (en) | 1968-05-27 | 1969-05-26 |
Country Status (6)
| Country | Link |
|---|---|
| JP (2) | JPS4819074B1 (en) |
| BE (1) | BE733550A (en) |
| FR (1) | FR2009424A1 (en) |
| GB (1) | GB1241773A (en) |
| MY (1) | MY7300325A (en) |
| NL (1) | NL164695C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3828498A1 (en) * | 1988-08-23 | 1990-03-01 | Basf Ag | CHROME DIOXIDE MATERIAL, METHOD FOR THE PRODUCTION THEREOF AND MAGNETIC RECORDING CARRIER CONTAINING THIS CHROME DIOXIDE MATERIAL |
-
1969
- 1969-05-23 BE BE733550D patent/BE733550A/xx not_active IP Right Cessation
- 1969-05-23 NL NL6907918A patent/NL164695C/en not_active IP Right Cessation
- 1969-05-26 JP JP44040257A patent/JPS4819074B1/ja active Pending
- 1969-05-27 GB GB2681869A patent/GB1241773A/en not_active Expired
- 1969-05-27 FR FR6917231A patent/FR2009424A1/fr active Pending
-
1972
- 1972-05-30 JP JP47053055A patent/JPS5229840B1/ja active Pending
-
1973
- 1973-12-30 MY MY7300325A patent/MY7300325A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE733550A (en) | 1969-11-24 |
| DE1925541A1 (en) | 1970-03-12 |
| FR2009424A1 (en) | 1970-02-06 |
| NL6907918A (en) | 1969-12-01 |
| NL164695C (en) | 1981-01-15 |
| GB1241773A (en) | 1971-08-04 |
| NL164695B (en) | 1980-08-15 |
| MY7300325A (en) | 1973-12-31 |
| JPS4819074B1 (en) | 1973-06-11 |
| DE1925541B2 (en) | 1977-07-14 |