Inventor
NAKAGAWA KENZO
JP8 patents
⚠️ This page may combine multiple inventors who share the name “NAKAGAWA KENZO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
6 patentsUS4688206AAug 18, 1987
Device for opening and closing a shutter member of a disk cartridge
SONY CORP42 citations92
US4220879ASep 2, 1980
Brushless DC motor
SONY CORP32 citations91
US6246829B1Jun 12, 2001
Recording medium driver
SONY CORP23 citations90
US5043974AAug 27, 1991
Disc cartridge
SONY CORP31 citations90
US7648671B2Jan 19, 2010
Method of making master for manufacturing optical disc and method of manufacturing optical disc
SONY CORP2 citations62
US6741802B1May 25, 2004
Elastic support assembly for disk device for disk recording apparatus with video camera
SONY CORP4 citations62