Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4717091 | Tape cassette, in particular a video tape cassette, and a pressure spring therefor | Klaus Schoettle, Herbert Dietze, Volker Frank, Oswald Waidele | 1988-01-05 |
| 4423454 | Magnetic recording disk | Peter Felleisen, Dieter Mayer, Eberhard Koester, Friedrich Domas | 1983-12-27 |
| 4382244 | Device for magnetically orienting the magnetizable particles or magnetic recording media in a preferred direction | Eberhard Koester, Dieter Schaefer, Karl Uhl, Roland Falk | 1983-05-03 |
| 4327139 | Rigid magnetic recording disk having perfluoropolyether lubricant | Dieter Schaefer, Herbert Motz, Dieter Mayer, Joachim Hack, Roland Falk | 1982-04-27 |
| 4275114 | Magnetic recording medium and method of stabilization of chromium dioxide magnetic pigments | Eduard Schoenafinger, Herbert Motz, Manfred Ohlinger, Werner Grau | 1981-06-23 |
| 4272563 | Manufacture of magnetic recording media having a wear-resistant surface | Werner Steck, Werner Loeser, Manfred Steuerwald, Gerd Wunsch | 1981-06-09 |
| 4271234 | Iron oxide magnetic pigments for the production of magnetic coatings | Eduard Schonafinger, Manfred Ohlinger, Helmut Jakusch, Jurgen Amort, Heinz Nestler +2 more | 1981-06-02 |
| 4201149 | Apparatus for spin coating in the production of thin magnetic layers for magnetic discs | Eberhard Koester, Roland Falk, Karl Uhl, Dieter Schaefer, Dieter Mayer +2 more | 1980-05-06 |
| 4201486 | Process for the manufacture of magnetic recording media | Werner Huebner, Job-Werner Hartmann, Friedrich Domas, Peter Nagel, Eberhard Koester +1 more | 1980-05-06 |