Inventor
AKITA MAMORU
JP16 patents
⚠️ This page may combine multiple inventors who share the name “AKITA MAMORU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
14 patentsUS5475664ADec 12, 1995
Focus servo circuit apparatus with automatic bias adjustments
SONY CORP61 citations93
US7406649B2Jul 29, 2008
Semiconductor memory device and signal processing system
SONY CORP19 citations92
US6269061B1Jul 31, 2001
Servo control system for disk player
SONY CORP29 citations92
US5883866AMar 16, 1999
Disk driving system and disk driving method
SONY CORP34 citations92
US5694380ADec 2, 1997
Disc player apparatus having a disc rotational speed controller
SONY CORP26 citations92
US5636192AJun 3, 1997
Disc player apparatus having a signal processing circuit which produces a reproduction clock synchronism with a reproduced signal
SONY CORP33 citations92
US5508983AApr 16, 1996
Optical disc player with shockproof controller and method of processing reproduction data
SONY CORP26 citations92
US5548569AAug 20, 1996
Tracking traverse control circuit for head unit of disc player
SONY CORP22 citations91
US6339580B1Jan 15, 2002
Apparatus and method of forming evaluation signal used in adjusting focus bias and adjusting skew of disk drive
SONY CORP8 citations74
US5590106ADec 31, 1996
Disc player having a plurality of reading means for reading information on a disc
SONY CORP8 citations73
US5541940AJul 30, 1996
Error correction method and error correction circuit
SONY CORP10 citations73
US6353585B1Mar 5, 2002
Apparatus and method of forming evaluation signal used in adjusting focus bias and adjusting skew of disk drive
SONY CORP3 citations63
US7362671B2Apr 22, 2008
Optical disc recording and/or playing apparatus and method
SONY CORP2 citations59
US7151724B2Dec 19, 2006
Disk recording apparatus and disk recording method
SONY CORP2 citations53