Inventor
DOI AKIHIKO
JP20 patents
⚠️ This page may combine multiple inventors who share the name “DOI AKIHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSHIBA KK
14 patentsUS5161144ANov 3, 1992
System for recording information on an optical recording medium
TOSHIBA KK22 citations92
US4755980AJul 5, 1988
Optical disk and recording/reproducing device for optical disk
TOSHIBA KK42 citations92
US5063548ANov 5, 1991
Information processing apparatus
TOSHIBA KK21 citations82
US4764912AAug 16, 1988
Optical focusing in magneto-optic disk system
TOSHIBA KK20 citations82
US4684797AAug 4, 1987
Optical system and method for reducing vibration of an objective lens in an optical head assembly of an optical read/write system
TOSHIBA KK17 citations74
US4641023AFeb 3, 1987
Optical head
TOSHIBA KK17 citations74
US5901125AMay 4, 1999
Recording and reproducing optical disk device with multi-disk type capability
TOSHIBA KK10 citations73
US5406536AApr 11, 1995
Optical disc apparatus having improved read accuracy with non-linear servo signal gain during track access and focus initialization
TOSHIBA KK10 citations73
US5306903AApr 26, 1994
Objective lens position detecting system capable of adjusting amounts of radiation
TOSHIBA KK7 citations73
US4900910AFeb 13, 1990
System for detecting the position of an objective lens
TOSHIBA KK16 citations73
US5101396AMar 31, 1992
Information recording system capable of preventing overwriting
TOSHIBA KK12 citations72
US7911911B2Mar 22, 2011
Optical disk device and control method
TOSHIBA KK2 citations62
US5309425AMay 3, 1994
Signal processing circuit for optical disk apparatus
TOSHIBA KK4 citations62
US6714500B2Mar 30, 2004
Optical disc drive and signal processing method
TOSHIBA KK0 citations51