Hama began his dance career in Tokyo where he was a lead dancer at Toho Theater, a variety show company. Hama lived in New York from 1964 to 1970, where he studied with famed jazz dance instructor Luigi and was his assistant for seven years both performing and teaching around the city. He also taught at Harkness Ballet Company. His dance credits began to accumulate where he became lead dancer in The Education of Hyman Caplan at Radio City Music Hall. He also appeared in summer stock, night club acts and numerous television specials.

After moving to Los Angeles, he became better known as a choreographer. His credits include variety show reviews, tours and television commercials, as well as many works as a guest choreographer. Hama dedicated himself to teaching and taught at every major studio, school and university in the western United States. He is recognized nationally and internationally for his distinct style of jazz dance. He became the recipient of The Lifetime Achievement in Dance Award by The Lehman Foundation in 1998.

Realizing two life long dreams, Hama opened his first dance studio in 1991, called Hama's Dance Center, and in 1994, he established the Jazz Dance L.A. Foundation, a non-profit organization which produced a yearly dance showcase concert for the purpose of providing a forum for jazz dance. JDLAF's mission is expressed each year in these multi-cultural, cross-generational concerts that present jazz dance pieces and new works from some of L.A.'s best known choreographers and talented emerging artists. Hama's Dance Center - Studio City is celebrating its 15-year anniversary in business and this is also his 7th year as a professor of Jazz Dance at the University of Southern California, where was nominated for the 2006 Teaching and Mentoring Award.