Inventor

HIRAYAMA KEIICHI

JP3 patents

Patents

3 patents

US5121210AJun 9, 1992

Video composing system using special effect apparatus

NEC CORP22 citations87

US4985756AJan 15, 1991

Special effect system for video signal

NEC CORP20 citations71

US4774507ASep 27, 1988

Special video effect system

NEC CORP15 citations71