| 5084319 |
Disk-shaped magnetic recording media, their production and information stores containing these recording media |
Hartmut Hibst, Arend Werner, Heinrich Mannsperger, Michael Hitzfeld, Werner Grau +2 more |
1992-01-28 |
| 5050015 |
Method and arrangement for reducing wear in a magnetic storage means |
Werner Grau, Werner Sickmueller, Heinrich Mannsperger, Helmut Jakusch |
1991-09-17 |
| 4891114 |
Magnetic recording media |
Michael Hitzfeld, Werner Grau |
1990-01-02 |
| 4796137 |
Protective jacket for a disk-shaped recording medium |
Dietrich Gruehn, Hubert Fehrenbach, Peter Rudolf, Norbert Holl |
1989-01-03 |
| 4626944 |
Positioning device for scanning means in a disk drive unit |
Klaus Schulze-Berge, Klaus Birkenmeier |
1986-12-02 |
| 4623942 |
Method and arrangement for detecting error signals in a disk-drive, and a magnetic test disk therefor |
Gerold Kraus, Walter Huber, Klaus Schulze-Berge, Roland Sold |
1986-11-18 |
| 4597990 |
Preparation of magnetic recording media |
Hermann Roller, Uwe Woweries, August Lehner, Werner Grau, Peter Nagel +1 more |
1986-07-01 |
| 4551359 |
Production of magnetic recording media |
August Lehner, Karl Krucker, Werner Balz, Karl H. Roemer, Peter Rudolf +2 more |
1985-11-05 |
| 4534999 |
Production of magnetic recording media having a backing coating |
Hermann Roller, August Lehner, Werner Grau, Werner Balz, Reinhold Baur |
1985-08-13 |
| 4514937 |
Method for the surface treatment of magnetic recording media |
Manfred Gehrung, Klaus Schoettle, Helmut Kreissler, Peter Rudolf, Friedrich Anslinger |
1985-05-07 |
| 4438462 |
Document identification employing exchange-anisotropic magnetic material |
Eberhard Koester, Manfred Steuerwald |
1984-03-20 |
| 4430678 |
Drive apparatus for recording disks in which the disk is clamped between a driven recessed member and a rotatably mounted clamping member |
Roland Brotzler, Klaus Schulze-Berge, Rudolf Angermann |
1984-02-07 |
| 4396886 |
Document authentication by means of exchange-anisotropic magnetic material |
Eberhard Koester, Manfred Steuerwald |
1983-08-02 |
| 4346413 |
Magnetic head positioning servo arrangement for a system for recording/reproducing information on a magnetic recording medium, particularly on a flexible magnetic recording medium |
— |
1982-08-24 |
| 4327139 |
Rigid magnetic recording disk having perfluoropolyether lubricant |
Dieter Schaefer, Herbert Motz, Dieter Mayer, Paul Deigner, Roland Falk |
1982-04-27 |
| 4320171 |
Magnetic recording media containing elastomeric polyurethane binders in the magnetic coating |
Herbert Motz, August Lehner, Heinrich Hartmann, Rudolf Bachmann, Hans-Joerg Hartmann +4 more |
1982-03-16 |
| 4303951 |
Device for compensating unequal write fields in magnetic data-storage devices, especially in disc memories |
— |
1981-12-01 |
