Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5543226 | Magnetic recording media | Michael Bobrich, August Lehner, Hermann Roller, Rudolf Suettinger, Ria Kress +6 more | 1996-08-06 |
| 5419959 | Magnetic recording medium having an infra-red light transparent balkcoat layer | Hermann Roller, Peter Heilmann, Michael Hitzfeld, Dieter Stockburger, Werner Latzel +4 more | 1995-05-30 |
| 5346761 | Flexible magnetic recording media having a backing coating containing a polyurethane resin having a phosphate group and precipated silica | Hermann Roller, Reinhold Baur, Michael Bobrich, Werner Latzel, Werner Lenz +1 more | 1994-09-13 |
| 5085889 | Process for the preparation of magnetic particle dispersions using ball mills and grinding media | Horst Platz, Friedrich Sommermann, Albert Kohl, Juergen Klausmann, Reinhold Baur +2 more | 1992-02-04 |
| 4775553 | Production of magnetic recording media | Jenoe Kovacs, Hermann Roller, Lothar Schwarz, Peter Nagel | 1988-10-04 |