Inventor
SHIMOKAWA RYUSHI
JP11 patents
⚠️ This page may combine multiple inventors who share the name “SHIMOKAWA RYUSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
8 patentsUS5818655AOct 6, 1998
Signal processing circuit and information recording/reproducing apparatus using the same, and method for optimizing coefficients of equalizer circuit
HITACHI LTD30 citations92
US5774470AJun 30, 1998
Digital signal processor, error detection method, and recording medium reproducer
HITACHI LTD34 citations92
US5805024ASep 8, 1998
Phase lock loop system including a primary phase lock loop apparatus and a high order phase lock loop apparatus
HITACHI LTD23 citations90
US6661594B2Dec 9, 2003
Signal processing circuit and information recording/reproducing apparatus using the same, and method for optimizing coefficients of equalizer circuit
HITACHI LTD14 citations83
US4755768AJul 5, 1988
Amplifier and display using the former
HITACHI LTD12 citations73
US4888561ADec 19, 1989
Amplifier and display using the former
HITACHI LTD4 citations62
US4180797ADec 25, 1979
Digital comparator constructed of IIL
HITACHI LTD1 citations51
US4198142AApr 15, 1980
Power supply resetting circuit for camera
HITACHI LTD0 citations40