[1] Lazy was formed by very young musicians and started playing easy-listening pop-rock, that slowly progressed to more complex music.

[3] In the same year he produced and played drums on Mari Hamada's studio albums Lunatic Doll and Romantic Night.

[4] He left Loudness in 1992, and resumed his solo career in the late-1990s, working also on side projects, including Sly (with former Loudness' singer Minoru Niihara),[5] Bloodcircus, Rose of Rose, and the Rock 'n' Roll Standard Club Band, besides collaborating with dozens of Japanese artists, both as producer and as drummer.

The band featured many famous musicians from the jazz and rock/metal spheres, like Steve Vai, Stanley Clarke, Billy Sheehan, Ty Tabor, Terry Bozzio, T. M. Stevens, Ronnie James Dio, Richie Kotzen, Paulinho Da Costa and others.

On April 14, 2008, just two months after Loudness released the album, Metal Mad, it was announced that he was diagnosed with hepatocellular carcinoma, a type of liver cancer.