Inventor
NISHIDA NORIO
JP14 patents
⚠️ This page may combine multiple inventors who share the name “NISHIDA NORIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
10 patentsUS5586098ADec 17, 1996
Optical disc apparatus for controlling laser power for each zone of a zone record system
SONY CORP26 citations91
US7065017B2Jun 20, 2006
Optical disk apparatus, method for generating clock signal of optical disk apparatus, and method for setting amount of light of optical disk apparatus
SONY CORP12 citations83
US5063545ANov 5, 1991
Access speed detecting means for disc player
SONY CORP17 citations73
US4853918AAug 1, 1989
Tracking servo uses tangent function to determine tracking error signal
SONY CORP10 citations73
US4843601AJun 27, 1989
Tracking servo system for optical disk playre apparatus
SONY CORP14 citations73
US5140571AAug 18, 1992
Disk drive apparatus with intermittently operated servo signal processor for low power consumption
SONY CORP20 citations72
US5218491AJun 8, 1993
Disk drive apparatus
SONY CORP10 citations65
US5144605ASep 1, 1992
Optical disk apparatus and method for controlling movement of light spot thereof
SONY CORP3 citations63
US7614752B2Nov 10, 2009
Image display apparatus and method, and driving apparatus and method
SONY CORP4 citations62
US6654329B1Nov 25, 2003
Disc drive unit
SONY CORP6 citations62