Inventor · disambiguated record
Yasuhide Ouchi
Also filed as: OUCHI YASUHIDE
24 granted patents·1 pending application·602 citations·filing 1984–2002
97Inventor score
Files withHITACHI LTD24
Top patents by PatentIndex Score
25 records- 0194US5766718ALongitudinal magnetic recording medium and apparatusHITACHI LTD·Filed 1994·Granted Jun 16, 1998·70 cites·28 claims
- 0293US5703855AOptical disk apparatus and recording and reading method for an optical disk using the sameHITACHI LTD·Filed 1994·Granted Dec 30, 1997·61 cites·7 claims
- 0392US5848045AMethod for recording and reading an optical diskHITACHI LTD·Filed 1997·Granted Dec 8, 1998·70 cites·14 claims
- 0491US5418660AInformation processing apparatus for processing reproduction signal having nonlinear characteristicsHITACHI LTD·Filed 1992·Granted May 23, 1995·58 cites·15 claims
- 0589US6496316B1Magnetic recording and reproduction apparatusHITACHI LTD·Filed 2000·Granted Dec 17, 2002·22 cites·1 claims
- 0684US6661594B2Signal 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
- 0784US5287228APeak detection method and apparatus thereforHITACHI LTD·Filed 1991·Granted Feb 15, 1994·36 cites·35 claims
- 0883US5572503ACorrecting non-linear distortions of optical information with a non-linear equalizerHITACHI LTD·Filed 1994·Granted Nov 5, 1996·32 cites·13 claims
- 0983US5400189AMagnetic recording and reproducing apparatus, reproduction signal processing apparatus, and reproduction signal processing methodHITACHI LTD·Filed 1993·Granted Mar 21, 1995·33 cites·20 claims
- 1081US5818655ASignal 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
- 1181US4907100AReadout circuit in magnetic recording deviceHITACHI LTD·Filed 1988·Granted Mar 6, 1990·24 cites·13 claims
- 1277US4774601ARead channel for magnetic recordingHITACHI LTD·Filed 1986·Granted Sep 27, 1988·21 cites·7 claims
- 1369US6046873AMagnetic recording and reproducing apparatus including a viterbi detector having a variable reference amplitude valueHITACHI LTD·Filed 1995·Granted Apr 4, 2000·17 cites·8 claims
- 1459US5572699AVariable length data in a parallel disk arrayHITACHI LTD·Filed 1993·Granted Nov 5, 1996·33 cites·30 claims
- 1558US5008761AReadout circuit in magnetic recording deviceHITACHI LTD·Filed 1990·Granted Apr 16, 1991·10 cites·10 claims
- 1657US5392316ADecoding method and apparatus with maximum likelihood sequence estimationHITACHI LTD·Filed 1993·Granted Feb 21, 1995·16 cites·22 claims
- 1752US4644424AEqualizer used for magnetic storage deviceHITACHI LTD·Filed 1984·Granted Feb 17, 1987·7 cites·14 claims
- 1849US6175460B1Magnetic recording and reproduction apparatusHITACHI LTD·Filed 1999·Granted Jan 16, 2001·6 cites·8 claims
- 1949US5568330ARecording/reproducing apparatus with maximum likelihood sequence estimationHITACHI LTD·Filed 1994·Granted Oct 22, 1996·11 cites·20 claims
- 2042US5659309AData recording/reproducing apparatus having viterbi decoder and method thereofHITACHI LTD·Filed 1995·Granted Aug 19, 1997·9 cites·14 claims
- 2142US4823208AMulti slice level signal circuitHITACHI LTD·Filed 1987·Granted Apr 18, 1989·5 cites·17 claims
- 2242US2001009483A1Signal processing circuit and information recording/reproducing apparatus using the same, and method for optimizing coefficients of equalizer circuitFiled 2001·Application pending·0 cites
- 2340US5467232AMagnetic recording and reproducing method using phase discrimination and apparatus thereforHITACHI LTD·Filed 1993·Granted Nov 14, 1995·4 cites·22 claims
- 2440US5325364AMethod for error correction and circuit for realizing sameHITACHI LTD·Filed 1989·Granted Jun 28, 1994·9 cites·11 claims
- 2537US4651236AWaveform equalizing circuitHITACHI LTD·Filed 1986·Granted Mar 17, 1987·4 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →