Hiroki Imanishi - is a video game artist. Hiroki Imanishi began his career in 2004 and has worked for companies such as Polyphony Digital and Sony Computer Entertainment. Hiroki Imanishi's first game was Gran Turismo 4 which was released 19 years ago. Best Game Hiroki Imanishi contributed to was Gran Turismo 4. Hiroki Imanishi's latest work is Gran Turismo 4 which was released 19 years ago.