Inventor
CHI CHAO S
US12 patents
⚠️ This page may combine multiple inventors who share the name “CHI CHAO S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SPERRY CORP
6 patentsUS4317148AFeb 23, 1982
Transducer for perpendicular magnetic recording
SPERRY CORP55 citations95
US4479152AOct 23, 1984
Adjustable equalizer
SPERRY CORP22 citations81
US4423451ADec 27, 1983
Thin film magnetic head having disparate poles for pulse asymmetry compensation
SPERRY CORP26 citations81
US4544961AOct 1, 1985
Triplex digital magnetic recording and reproducing system
SPERRY CORP8 citations73
US4470081ASep 4, 1984
Controlled return to A.C. digital magnetic and reproducing system
SPERRY CORP3 citations62
US4410817AOct 18, 1983
Precision time duration detector
SPERRY CORP1 citations50
EASTMAN KODAK CO
4 patentsUS4802033AJan 31, 1989
Predictive positioning offset compensation for high TPI disk systems
EASTMAN KODAK CO59 citations95
US5121258AJun 9, 1992
Apparatus for anhysteretic duplication of a flexible magnetic disk
EASTMAN KODAK CO37 citations92
US5075801ADec 24, 1991
Electromagnetic drive circuitry for anhysteretic duplication of a flexible magnetic disk
EASTMAN KODAK CO23 citations92
US4954825ASep 4, 1990
Self clocking binary data encoding/decoding method
EASTMAN KODAK CO13 citations73