Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5757593 | Magnetic-type cassette with a pad having a polytetrafluoroethylene layer anchored to the open pores of a foam base | — | 1998-05-26 |
| 5558292 | Magnetic-tape cassette having at least one antifriction foil separated from an antifriction-foil stack | — | 1996-09-24 |
| 5418669 | Magnetic-tape cassette having a pressure-member support and a tape-guide-member support which independently engage common abutments therein | — | 1995-05-23 |
| 5408378 | Magnetic-tape cassette comprising a pressure-member support, and pressure-member support for such a cassette | — | 1995-04-18 |
| 5214554 | Cassette for a record carrier | Norbert C. Vollmann, Peter J. Doodson, Gunther Bernauer | 1993-05-25 |
| 5187629 | Cassette with magnetic tape on two coplanar reels | Norbert C. Vollmann, Jan Dewolf, Gunther Bernauer, Marco V. Koningsberger | 1993-02-16 |
| 5135111 | Holder for a cassette | — | 1992-08-04 |