Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |