> all I know is Irem start a new company called "IREM IREM SOFTWARE ENGINEERING
> INC." from 1997

Yes, they make console games.

> Is there any information about "early Irem"?
> I search for over 3 hours on internet, and found nothing left after 1997...
> If anyone who knows Irem histroy, please let me know

Irem closed their arcade division down in the mid 90's and that was in till the new company formed,

Six...

System16 - The Arcade Museum