Inventor
STAHL RONALD P
US4 patents
⚠️ This page may combine multiple inventors who share the name “STAHL RONALD P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
3 patentsUS5446710AAug 29, 1995
Focus error detection using an equal path length lateral shearing interferometer
IBM35 citations90
US5627818AMay 6, 1997
Optical disk with marks used for calibrating an optical detector to minimize noise from undesired perturbations in disk surfaces
IBM7 citations70
US5235574AAug 10, 1993
Optical disk drive relative position sensor
IBM15 citations69