Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7760471 | Servo track writer arm positioning device | Volker Hoefer | 2010-07-20 |
| 7507949 | Positioning device having a shaft axially movable via a ring diaphragm | Volker Hoefer | 2009-03-24 |
| 7474511 | Voice-coil motor and positioning device or servo-track writer including a voice-coil motor | Volker Hoefer | 2009-01-06 |
| 7136249 | Positioning device | Volker Hoefer, Johann Lahr, Johann Mitterreiter | 2006-11-14 |
| 6772935 | Method and device for friction stir welding with simultaneous cooling | Frank Palm, Klaus Raether | 2004-08-10 |