FC Machida Zelvia
After playing in the youth team of JEF United Chiba and in Ritsumeikan University, Kato opted for a career of a globetrotter. After spells with Sacachispas and FC Machida Zelvia in the 2012 J.League Division 2, he played two seasons with FK Rudar Pljevlja in the Montenegrin First League. Next he played with Polish side Podbeskidzie Bielsko-Biała in the 2015–16 Ekstraklasa, before joining Beroe Stara Zagora playing in the Bulgarian First League. In October 2019, he signed for Gibraltar National League side St Joseph's.