In 2000, ISAO debuted at BMG Funhouse as the leader of his own instrumental band "bright-NOA." He was also intensely active in a solo project called "Spark7." ISAO spent four years living in Los Angeles where he released a debut album, "A Stride," and a second album, "Gravity Core," together with Mike Mangini from Dream Theater and Philip Bynoe (bass) from Steve Vai's band.
ISAO also tours live with Thomas Lang (drums) and Kiyomi Otaka (organ) from CASIOPEA 3RD as a part of the "Spark7" project. He recently formed a trio with Toshimi Nagai (bass) and Kozo Suganuma (drums), which is due to release its debut album in May, 2014.