Inventor
FUJIWARA TSUNEO
JP19 patents
⚠️ This page may combine multiple inventors who share the name “FUJIWARA TSUNEO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHARP KK
17 patentsUS5729517AMar 17, 1998
Data detecting circuit
SHARP KK43 citations92
US5675569AOct 7, 1997
Readback circuit for an optical information reading and recording apparatus
SHARP KK30 citations92
US6934229B2Aug 23, 2005
Phase correction circuit for a disk reproduction device
SHARP KK12 citations83
US4954903ASep 4, 1990
Digital signal reproduction apparatus for reading magneto-optical disks
SHARP KK6 citations74
US6282163B1Aug 28, 2001
Optical disk recording/reproducing device
SHARP KK11 citations73
US5673046ASep 30, 1997
Analog-to-digital conversion circuit for use in information reproduction apparatuses
SHARP KK11 citations73
US5010540AApr 23, 1991
Apparatus for recording and reproducing information on and from an optical disk
SHARP KK8 citations73
US4868922ASep 19, 1989
Data modulation/demodulation system utilizing demodulation clocks that differ in phase
SHARP KK8 citations71
US5166838ANov 24, 1992
Digital signal reproduction apparatus for reading magneto-optical discs
SHARP KK2 citations63
US5107472AApr 21, 1992
Track access and laser beam alignment system for an optical recording and reproduction apparatus
SHARP KK4 citations63
US5048004ASep 10, 1991
Optical recording medium recording and reproducing device
SHARP KK6 citations63
US7174501B2Feb 6, 2007
Apparatus and method of correcting offset
SHARP KK6 citations62
US6778477B2Aug 17, 2004
Reproduction power control method, reproduction power control device, and record reproducing device incorporating the same
SHARP KK2 citations62
US5056076AOct 8, 1991
Method for controlling the rotational velocity of an information recording disk
SHARP KK3 citations62
US4785252ANov 15, 1988
Waveform processing circuit
SHARP KK5 citations62
US4993012AFeb 12, 1991
Record face identifying device for magneto-optic record medium
SHARP KK2 citations61
US5018120AMay 21, 1991
Optical recording medium track indexing system
SHARP KK1 citations51