Inventor
KANAZAWA YASUNORI
JP16 patents
⚠️ This page may combine multiple inventors who share the name “KANAZAWA YASUNORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
7 patentsUS4539615ASep 3, 1985
Azimuthal magnetic recording and reproducing apparatus
HITACHI LTD125 citations96
US4703408AOct 27, 1987
Apparatus and record carrier for optically writing information
HITACHI LTD27 citations92
US4282551AAug 4, 1981
PCM Recording and reproducing apparatus
HITACHI LTD23 citations82
US4472686ASep 18, 1984
Circuit for reproducing and demodulating modulated digital signals
HITACHI LTD16 citations74
US4363039ADec 7, 1982
Automatic operation control apparatus for a PCM recording and reproducing system
HITACHI LTD10 citations74
US4227221AOct 7, 1980
PCM Recording apparatus
HITACHI LTD13 citations73
US3979721ASep 7, 1976
Pulse code modulation recording and reproducing apparatus
HITACHI LTD11 citations72
HITACHI MAXELL
7 patentsUS5007039AApr 9, 1991
Optical information recording/reproducing apparatus
HITACHI MAXELL31 citations92
US4678338AJul 7, 1987
Color sensor
HITACHI MAXELL55 citations90
US4740948AApr 26, 1988
Disc cartridge
HITACHI MAXELL24 citations79
US4733388AMar 22, 1988
Information recording disc
HITACHI MAXELL14 citations73
US4811151AMar 7, 1989
Shutter assembled disc cartridge
HITACHI MAXELL8 citations72
US4799123AJan 17, 1989
Disc cartridge
HITACHI MAXELL11 citations71
US4959744ASep 25, 1990
Shutter assembled disc cartridge
HITACHI MAXELL4 citations61