Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6724162 | Motor-control device enabling the rotational speed of the motor's rotor to be measured | Jannis Pieter van der Linde | 2004-04-20 |
| 6479955 | Method of energizing a polyphase motor having an increased energy efficiency | Emeric Uguen, Henricus Cornelis Johannes Büthker | 2002-11-12 |
| 6362583 | Control unit for a brushless motor and read/write device including such a control unit | Johannes P. M. Bahlmann | 2002-03-26 |
| 6204617 | Device for the detection of an angle of rotation of a brushless multi-phase d.c. motor | Catharinus T. Galema | 2001-03-20 |
| 5495372 | Motor drive circuit with emergency auxiliary power supply energized by motor | Johannes P. M. Bahlmann | 1996-02-27 |
| 5397971 | Bi-polar disk torquing system for a disk drive to free stuck transducers | Jeffrey S. McAllister, Boyd Norvell Shelton | 1995-03-14 |
| 5030864 | Three-phase electrical machine with reduced cogging torque | Jan-Christer JANSON, Johannes H. M. Janssen, Robertus I. Van Steen | 1991-07-09 |
| 4814676 | Self-starting brushless D.C. motor | — | 1989-03-21 |
| 4748385 | Brushless d.c. motor and switching device for use in such a d.c. motor | — | 1988-05-31 |
| 4731778 | Electro-magnetic drive unit comprising a pivotable armature | Johannes T. A. van de Veerdonk | 1988-03-15 |