Based on his initial kickboxing record, his status as one of Japan's top karate competitors, and his affiliation with K-1 founder Kazuyoshi Ishii's Seidokaikan group, Satake was invited to participate in the first K-1 event - K-1 Sanctuary I. Following a victory over American Chris Blanner, he was invited to the company's first-ever world tournament, the K-1 Grand Prix '93. He bested future Olympic bobsledder Todd Hays in the quarterfinals before suffering his first defeat (and knockout) to Branko Cikatić, who would go on to win the tournament.