Inventor
HOLLIS JR RALPH L
US10 patents
⚠️ This page may combine multiple inventors who share the name “HOLLIS JR RALPH L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
8 patentsUS5146566ASep 8, 1992
Input/output system for computer user interface using magnetic levitation
IBM288 citations98
US4874998AOct 17, 1989
Magnetically levitated fine motion robot wrist with programmable compliance
IBM138 citations97
US4745681AMay 24, 1988
Controlled pin insertion using airflow sensing and active feedback
IBM56 citations94
US4520570AJun 4, 1985
Piezoelectric x-y-positioner
IBM60 citations94
US5153494AOct 6, 1992
Ultrafast electro-dynamic x, y and theta positioning stage
IBM43 citations92
US4514674AApr 30, 1985
Electromagnetic X-Y-Theta precision positioner
IBM39 citations91
US4684547AAug 4, 1987
Format patterning method for magnetic recording media
IBM24 citations81
US4509002AApr 2, 1985
Precision X-Y positioner
IBM23 citations81