Inventor · disambiguated record
Volker Zimmermann
Also filed as: ZIMMERMANN VOLKER · ZIMMERMANN VOLKER W
14 granted patents·270 citations·filing 1975–2020
93Inventor score
Top patents by PatentIndex Score
14 records- 0190US4217612AServo system for track accessing and track following in a disk driveIBM·Filed 1978·Granted Aug 12, 1980·38 cites·7 claims
- 0287US4045696ARotor stator assembly for a low inertia stepping motorIBM·Filed 1975·Granted Aug 30, 1977·49 cites·9 claims
- 0386US4072888AMethod of controlling a stepper motorIBM·Filed 1975·Granted Feb 7, 1978·42 cites·13 claims
- 0483US4514667AMethod and apparatus for the constant speed control of brushless DC motorsIBM·Filed 1983·Granted Apr 30, 1985·37 cites·10 claims
- 0582US4208685ADisk storage apparatus having an electrically tuned head-carriage actuatorIBM·Filed 1978·Granted Jun 17, 1980·25 cites·3 claims
- 0673US4580176AAdaptive equalization circuit for magnetic recording channels utilizing signal timingIBM·Filed 1983·Granted Apr 1, 1986·17 cites·10 claims
- 0771US4396960AServo track following control for magnetic heads, and method for compensating uniform disturbance variablesIBM·Filed 1981·Granted Aug 2, 1983·17 cites·3 claims
- 0867US4065708AMethod and apparatus for determining stepping motor parameters from induced voltagesIBM·Filed 1975·Granted Dec 27, 1977·16 cites·8 claims
- 0958US7805462B2Portfolio management methods, systems, and computer programsSAP AG·Filed 2004·Granted Sep 28, 2010·11 cites·14 claims
- 1051US4438467AMagnetic disk track following servo burst amplitude drop compensationIBM·Filed 1982·Granted Mar 20, 1984·7 cites·5 claims
- 1150US11732407B2Wallpaper and method for providing wallpaperBRAINSTOXX GmbH·Filed 2020·Granted Aug 22, 2023·0 cites·20 claims
- 1243US7500929B2Hybrid drive system comprising a hydrodynamic clutch particularly for motor vehiclesVOITH TURBO KG·Filed 2003·Granted Mar 10, 2009·5 cites·36 claims
- 1340US4664543ADevice for monitoring and compensating for changes in the flight time of the print hammers of impact printersIBM·Filed 1986·Granted May 12, 1987·4 cites·28 claims
- 1431US4744683ARevolving endless bands comprising means for compensating for a displacement perpendicular to their direction of movementIBM·Filed 1987·Granted May 17, 1988·2 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →