Inventor

UEKUSA TSUTOMU

JP3 patents

Patents

3 patents

US4686564AAug 11, 1987

Communication data processing device of cable television system

TOSHIBA KK102 citations92

US4901351AFeb 13, 1990

Video signal scramble system

TOSHIBA KK19 citations70

US4829589AMay 9, 1989

Anti-tapping system

TOSHIBA KK9 citations69