BE691147A - - Google Patents
Info
- Publication number
- BE691147A BE691147A BE691147A BE691147A BE691147A BE 691147 A BE691147 A BE 691147A BE 691147 A BE691147 A BE 691147A BE 691147 A BE691147 A BE 691147A BE 691147 A BE691147 A BE 691147A
- Authority
- BE
- Belgium
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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US51382565A | 1965-12-14 | 1965-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE691147A true BE691147A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1967-06-13 |
Family
ID=24044799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE691147A BE691147A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1965-12-14 | 1966-12-13 |
Country Status (6)
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3512930A (en) * | 1969-05-07 | 1970-05-19 | Du Pont | Stabilized ferromagnetic chromium dioxide |
| JPS4843436B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1970-10-20 | 1973-12-18 | ||
| JPS4843437B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1970-12-16 | 1973-12-18 | ||
| IT1012202B (it) * | 1974-05-09 | 1977-03-10 | Montedison Spa | Procedimento per la produzione di biossido di cromo ferromagnetico |
| DE2942646A1 (de) * | 1979-10-22 | 1981-04-30 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von ferromagnetischem chromdioxid |
| DE3513723A1 (de) * | 1985-04-17 | 1986-10-23 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von ferromagnetischem chromdioxid |
| EP1534634A2 (en) * | 2002-08-29 | 2005-06-01 | Tata Institute of Fundamental Research | Chromium dioxide (cro sb 2 /sb ) and composites of chromium dioxide and other oxides of chromium such as cro sb 2 /sb /cr sb 2 /sb o sb 3 /sb and cro sb 2 /sb /cr sb 2 /sb o sb 5 /sb and process for manufacturing the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3278263A (en) * | 1964-11-27 | 1966-10-11 | Du Pont | Ferromagnetic chromium dioxide and preparation thereof |
-
1965
- 1965-12-14 US US513825A patent/US3449073A/en not_active Expired - Lifetime
-
1966
- 1966-12-07 DE DE1966P0040942 patent/DE1592492B1/de active Pending
- 1966-12-12 GB GB55611/66A patent/GB1127968A/en not_active Expired
- 1966-12-13 BE BE691147A patent/BE691147A/xx not_active IP Right Cessation
- 1966-12-13 NL NL6617476A patent/NL6617476A/xx unknown
- 1966-12-13 FR FR87250A patent/FR1505024A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1505024A (fr) | 1967-12-08 |
| GB1127968A (en) | 1968-09-25 |
| US3449073A (en) | 1969-06-10 |
| NL6617476A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1967-06-15 |
| DE1592492B1 (de) | 1971-04-08 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE20 | Patent expired |
Owner name: E.I. DU PONT DE NEMOURS AND CY Effective date: 19861213 |