Inventor · disambiguated record
Ryushi Shimokawa
Also filed as: SHIMOKAWA RYUSHI · YAGI MICHIO
11 granted patents·1 pending application·152 citations·filing 1978–2002
90Inventor score
Top patents by PatentIndex Score
12 records- 0184US6661594B2Signal processing circuit and information recording/reproducing apparatus using the same, and method for optimizing coefficients of equalizer circuitHITACHI LTD·Filed 2002·Granted Dec 9, 2003·14 cites·13 claims
- 0282US4492450ACamera with microprocessorKONISHIROKU PHOTO IND·Filed 1982·Granted Jan 8, 1985·17 cites·8 claims
- 0381US5818655ASignal processing circuit and information recording/reproducing apparatus using the same, and method for optimizing coefficients of equalizer circuitHITACHI LTD·Filed 1995·Granted Oct 6, 1998·30 cites·35 claims
- 0478US5774470ADigital signal processor, error detection method, and recording medium reproducerHITACHI LTD·Filed 1995·Granted Jun 30, 1998·34 cites·12 claims
- 0564US4269494ABattery level warning deviceSHIOZAWA KAZUO·Filed 1978·Granted May 26, 1981·17 cites·12 claims
- 0663US4755768AAmplifier and display using the formerHITACHI LTD·Filed 1986·Granted Jul 5, 1988·12 cites·27 claims
- 0758US5805024APhase lock loop system including a primary phase lock loop apparatus and a high order phase lock loop apparatusHITACHI LTD·Filed 1995·Granted Sep 8, 1998·23 cites·16 claims
- 0842US2001009483A1Signal processing circuit and information recording/reproducing apparatus using the same, and method for optimizing coefficients of equalizer circuitFiled 2001·Application pending·0 cites
- 0938US4888561AAmplifier and display using the formerHITACHI LTD·Filed 1988·Granted Dec 19, 1989·4 cites·62 claims
- 1031US4198142APower supply resetting circuit for cameraHITACHI LTD·Filed 1978·Granted Apr 15, 1980·0 cites·3 claims
- 1130US4268136ACamera having an automatic exposure control meansKONISHIROKU PHOTO IND·Filed 1978·Granted May 19, 1981·0 cites·21 claims
- 1230US4180797ADigital comparator constructed of IILHITACHI LTD·Filed 1978·Granted Dec 25, 1979·1 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →