Inventor
UMEMOTO MASUO
JP22 patents
⚠️ This page may combine multiple inventors who share the name “UMEMOTO MASUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
21 patentsUS4246601AJan 20, 1981
Solid-state color imaging device
HITACHI LTD43 citations93
US5881071AMar 9, 1999
Digital write-and-read method and signal processing apparatus
HITACHI LTD30 citations92
US4628297ADec 9, 1986
Code modulation system
HITACHI LTD30 citations92
US4283742AAug 11, 1981
Solid-state imaging apparatus with fixed pattern noise reduction
HITACHI LTD35 citations92
US4245241AJan 13, 1981
Solid-state color imaging device
HITACHI LTD44 citations92
US4737863AApr 12, 1988
Method for distributing and recording video signals and an apparatus using the same
HITACHI LTD31 citations89
US6130797AOct 10, 2000
Magnetic recorder and magnetooptical recorder
HITACHI LTD16 citations84
US5594756AJan 14, 1997
Decision feedback equalization circuit
HITACHI LTD19 citations84
US4802192AJan 31, 1989
Circuit for detecting synchronizing code
HITACHI LTD19 citations81
US4775897AOct 4, 1988
Dubbing method and apparatus for digital recording reproducing apparatus including direct digital outputs
HITACHI LTD21 citations81
US4700240AOct 13, 1987
Digital data playback system
HITACHI LTD21 citations81
US5247401ASep 21, 1993
Replay equalization circuit in digital image recorder
HITACHI LTD20 citations79
US5786952AJul 28, 1998
Magnetic digital storage method and system wherein magnetic transition points in adjacent recorded tracks are out of phase with each other
HITACHI LTD8 citations74
US4467347AAug 21, 1984
Color imaging device
HITACHI LTD11 citations74
US4281338AJul 28, 1981
Solid state color imaging apparatus
HITACHI LTD13 citations74
US4698811AOct 6, 1987
Method and apparatus for generating error correction codes for digitized picture signal recording/reproducing
HITACHI LTD9 citations73
US4661956AApr 28, 1987
Method of correcting errors of digital signals in the recording and reproduction of digital signals
HITACHI LTD16 citations73
US4223187ASep 16, 1980
Method and apparatus for recording and reproducing a video-disc with an oscillated track
HITACHI LTD17 citations73
US3979721ASep 7, 1976
Pulse code modulation recording and reproducing apparatus
HITACHI LTD11 citations72
US5552940ASep 3, 1996
Method and apparatus for digital signal recording and/or reproduction
HITACHI LTD11 citations71
US4868853ASep 19, 1989
Demodulation circuit for digital modulated signal
HITACHI LTD5 citations60