Inventor
NAKAJIMA HEITARO
JP5 patents
Patents
5 patentsUS5832088ANov 3, 1998
Method and apparatus for preventing data copying from a disk using data lengths too large for a pirate medium
SONY CORP76 citations94
US4138121AFeb 6, 1979
Tone arm assembly
SONY CORP20 citations78
US5111442AMay 5, 1992
Recordable optical disc storage device with limited storage capacity, and recording apparatus therefor
SONY CORP16 citations72
US4445150AApr 24, 1984
Recording in a single track visual signals associated with audio signals recorded in opposed directions in plural tracks
SONY CORP11 citations68
US6344940B1Feb 5, 2002
Method and apparatus for adding 1/f fluctuation to an audio signal
SONY CORP0 citations51