One of two male doctors in the Tetsumen Tou. He has a son, whom Ken faced in Episode 28. He and his son both pilot the Black Jaguar robot,and it seems that back in his days, he was also an excellent pilot. Near the end of the series, he, along with Marilyn, Orjin, Norman, and Hashnikov, were used as energy supplies by the Sigma computer and Sigma-Ken until they decided to stop using them and threw them away; it was only by the efforts of Kumano and Freud that they could be reached and helped in time. His name is a reference to Isaac Asimov, known for his science fiction work involving robots.

(Source: Wikipedia)