Inventor · disambiguated record
Masuo Umemoto
Also filed as: UMEMOTO MASUO
22 granted patents·444 citations·filing 1975–1997
96Inventor score
Top patents by PatentIndex Score
22 records- 0189US4246601ASolid-state color imaging deviceHITACHI LTD·Filed 1979·Granted Jan 20, 1981·43 cites·16 claims
- 0289US4245241ASolid-state color imaging deviceHITACHI LTD·Filed 1979·Granted Jan 13, 1981·44 cites·25 claims
- 0383US4628297ACode modulation systemHITACHI LTD·Filed 1985·Granted Dec 9, 1986·30 cites·6 claims
- 0477US5881071ADigital write-and-read method and signal processing apparatusHITACHI LTD·Filed 1997·Granted Mar 9, 1999·30 cites·41 claims
- 0575US4283742ASolid-state imaging apparatus with fixed pattern noise reductionHITACHI LTD·Filed 1979·Granted Aug 11, 1981·35 cites·12 claims
- 0675US4223187AMethod and apparatus for recording and reproducing a video-disc with an oscillated trackHITACHI LTD·Filed 1977·Granted Sep 16, 1980·17 cites·32 claims
- 0774US4700240ADigital data playback systemHITACHI LTD·Filed 1985·Granted Oct 13, 1987·21 cites·7 claims
- 0873US4737863AMethod for distributing and recording video signals and an apparatus using the sameHITACHI LTD·Filed 1985·Granted Apr 12, 1988·31 cites·12 claims
- 0972US5247401AReplay equalization circuit in digital image recorderHITACHI LTD·Filed 1989·Granted Sep 21, 1993·20 cites·3 claims
- 1066US5594756ADecision feedback equalization circuitHITACHI LTD·Filed 1995·Granted Jan 14, 1997·19 cites·14 claims
- 1166US4775897ADubbing method and apparatus for digital recording reproducing apparatus including direct digital outputsHITACHI LTD·Filed 1986·Granted Oct 4, 1988·21 cites·13 claims
- 1265US4791495ADigital signal recording and reproducing system having an interface for dubbing a color television signal in the component formHITACHI ELECTRONICS·Filed 1986·Granted Dec 13, 1988·14 cites·6 claims
- 1364US3979721APulse code modulation recording and reproducing apparatusHITACHI LTD·Filed 1975·Granted Sep 7, 1976·11 cites·4 claims
- 1463US4281338ASolid state color imaging apparatusHITACHI LTD·Filed 1979·Granted Jul 28, 1981·13 cites·7 claims
- 1562US6130797AMagnetic recorder and magnetooptical recorderHITACHI LTD·Filed 1995·Granted Oct 10, 2000·16 cites·17 claims
- 1656US4467347AColor imaging deviceHITACHI LTD·Filed 1982·Granted Aug 21, 1984·11 cites·17 claims
- 1754US4802192ACircuit for detecting synchronizing codeHITACHI LTD·Filed 1987·Granted Jan 31, 1989·19 cites·3 claims
- 1851US5552940AMethod and apparatus for digital signal recording and/or reproductionHITACHI LTD·Filed 1995·Granted Sep 3, 1996·11 cites·36 claims
- 1948US5786952AMagnetic digital storage method and system wherein magnetic transition points in adjacent recorded tracks are out of phase with each otherHITACHI LTD·Filed 1995·Granted Jul 28, 1998·8 cites·10 claims
- 2048US4698811AMethod and apparatus for generating error correction codes for digitized picture signal recording/reproducingHITACHI LTD·Filed 1985·Granted Oct 6, 1987·9 cites·10 claims
- 2148US4661956AMethod of correcting errors of digital signals in the recording and reproduction of digital signalsHITACHI LTD·Filed 1985·Granted Apr 28, 1987·16 cites·12 claims
- 2235US4868853ADemodulation circuit for digital modulated signalHITACHI LTD·Filed 1988·Granted Sep 19, 1989·5 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →