Inventor
TSUKAHARA NOBUHIKO
JP17 patents
⚠️ This page may combine multiple inventors who share the name “TSUKAHARA NOBUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
15 patentsUS4445155AApr 24, 1984
Flexible magnetic disk cassette and a recording and/or reproducing apparatus for the same
SONY CORP55 citations96
US7079733B2Jul 18, 2006
Optical communication system, optical communication apparatus, and optical cable
SONY CORP25 citations92
US6414928B1Jul 2, 2002
Disc tray, disc-tray accommodating apparatus and disc drive apparatus
SONY CORP38 citations92
US6345035B1Feb 5, 2002
Disc tray, disc-tray accommodating apparatus and disc drive apparatus
SONY CORP14 citations92
US6021107AFeb 1, 2000
Optical pickup device and recording and/or reproducing apparatus for optical disc
SONY CORP29 citations92
US5448537ASep 5, 1995
Magnet-optical disc drive device with sure disc placement
SONY CORP26 citations92
US8356312B2Jan 15, 2013
Cartridge drive apparatus for a disc cartridge that holds a disc
SONY CORP7 citations83
US7112746B2Sep 26, 2006
Data transmission cable
SONY CORP18 citations83
US6407982B1Jun 18, 2002
Disk tray, disk storing apparatus and disk drive
SONY CORP12 citations73
US5970045AOct 19, 1999
Optical disc and disc cartridge
SONY CORP8 citations73
US4989107AJan 29, 1991
Microfloppy disk drive with centering mechanism
SONY CORP18 citations73
US4697216ASep 29, 1987
Disk drive apparatus with automatic centering arrangement
SONY CORP19 citations73
US4612588ASep 16, 1986
Head moving apparatus using stepping motor
SONY CORP12 citations73
US7948379B2May 24, 2011
Optical disk recording and reproducing apparatus, remote controller, and content management method
SONY CORP2 citations62
US6151293ANov 21, 2000
Two-layer optical disk unaffected by position deviation
SONY CORP4 citations62