| 5543226 |
Magnetic recording media |
Michael Bobrich, August Lehner, Hermann Roller, Ria Kress, Norbert Schneider +6 more |
1996-08-06 |
| 5346761 |
Flexible magnetic recording media having a backing coating containing a polyurethane resin having a phosphate group and precipated silica |
Hermann Roller, Peter Engelhardt, Reinhold Baur, Michael Bobrich, Werner Latzel +1 more |
1994-09-13 |
| 5266407 |
Magnetic recording media |
Uwe Keppeler, Michael Bobrich, Helmut Auweter, Albert Kohl, Hermann Dikow +2 more |
1993-11-30 |
| 5266408 |
Magnetic recording media |
Uwe Keppeler, Hermann Dikow, Helmut Auweter, Michael Bobrich, Jochen Rudolph +3 more |
1993-11-30 |
| 5217810 |
Magnetic recording medium having a magnetic layer containing chromium dioxide particles and linolenic acid |
August Lehner, Michael Bobrich, Hermann Dikow, Hermann Roller, Werner Lenz +3 more |
1993-06-08 |
| 5169721 |
Magnetic recording media comprising a polyurethane binder resin containing perfluoro groups |
Michael Bobrich, August Lehner, Albert Kohl, Uwe Keppeler, Werner Lenz |
1992-12-08 |
| 5157259 |
Measuring method and measuring arrangement for determining the orientation ratio of flexible magnetic recording media |
Ursula Klein |
1992-10-20 |
| 5120608 |
Magnetic recording media comprising a polyurethane binder resin containing perfluoro groups |
Michael Bobrich, August Lehner, Albert Kohl, Uwe Keppeler, Werner Lenz +3 more |
1992-06-09 |
| 5082737 |
Magnetic recording media having a branched thermoplastic polyurethane binder containing a polysiloxane component in the main chain |
Michael Bobrich, Hermann Roller, August Lehner, Uwe Keppeler, Werner Loch +2 more |
1992-01-21 |
| 5075179 |
Magnetic recording media |
August Lehner, Michael Bobrich, Hermann Dikow, Hermann Roller, Werner Lenz +3 more |
1991-12-24 |
