Friedhelm Zucker
29Patents
9h-index
9Co-inventors
68Inventor score
Filing activity: Jun 20, 1988 → Nov 30, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5812519A | ROM-RAM Disk | Physics | 30 | Expired |
| US5016233A | Optical scanning arrangement for maintaining constant the light output of a laser beam or the laser current | Physics | 22 | Expired |
| US5031162A | Magneto-optical recorded medium with a transparent substrate layer | Physics | 19 | Expired |
| US5247507A | Optical scanning system for a sinusoidal data track | Physics | 13 | Expired |
| US5802029A | Reproduction and/or recording device for optical recording media of varying storage density | Physics | 11 | Expired |
| US5229902A | Circuitry for reversing a magnetic field | Physics | 11 | Expired |
| US4959821A | Optical pick-up for scanning a magneto-optically recorded medium | Physics | 11 | Expired |
| US5202874A | Circuit arrangement for identifying the type of an optical record carrier | Physics | 9 | Expired |
| US5220467A | Circuit arrangement for reversing a magnetic field | Physics | 9 | Expired |
| US7466636B2 | Method for generating a corrected error signal, and corresponding apparatus | Physics | 9 | Expired |
| US5715232A | Recording and reproduction of items of information using ROM-RAM storage media | Physics | 9 | Expired |
| US5764605A | G factor alignment | Physics | 8 | Expired |
| US5325350A | Pick-up for selectively reading and writing an optical recording medium having pits and magnetic domains | Physics | 6 | Expired |
| US5550800A | Pick-up with adaptation | Physics | 6 | Expired |
| US5278818A | Magneto-optical recording circuitry for reversing a magnetic field | Electricity | 5 | Expired |
| US6285641A | Device for writing and/or reading optical recording medium of various designs | Physics | 4 | Expired |
| US5278713A | Cooling device including ribs, in combination with a magnetic head | Physics | 3 | Expired |
| US5519395A | Digital recording and reproduction device | Physics | 3 | Expired |
| US7423563B2 | Serial data transfer in a numerically controlled control system to update an output value of the control system | Physics | 3 | Active |
| US4888476A | Optical scanning system for focussing a compact-disk player | Physics | 3 | Expired |
| US6198706A | Optical format compatible recording and/or playback device | Physics | 2 | Expired |
| US5375109A | Magneto-optical recording and/or reproducing device | Physics | 1 | Expired |
| US6742096B1 | Fast startup procedure for multimode data players and/or recorders | Physics | 1 | Expired |
| US6781948B2 | Device for reading from and/or writing to optical recording media | Physics | 0 | Expired |
| US11675088B2 | Phase centre compensation for high precision GNSS antennas | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.