Toshiji Mikawa, born in 1960, in a "noisician", performing solo, in various collaborations, and most notably, as the founder of the Japanese noise group Incapacitants, originally a solo project and then a duo with Fumio Kosakai. He is also known for his work with the groups Abe Kaii, Acid Mothers Kaidan, Annon, Atsuta Jingu, BiS Kaidan, E.G.KAIDAN, Fumio Tommikawa, Gomikawa, Gomikawa Fumio, Great Muda, Hankyu Brainticket, Hatsune Kaidan, Heian Jingu, Hijokaidan, Incapacitants, Jazz Hijokaidan, Mikamikaidan, MikaTen, mn, MNK, S.O.B.階段, Shen x Mikawa Duo, Soundings, Two Assistant Deputy Mikawa, Under-T, 彩階段.

Influenced as a young ma by improvisers like Derek Bailey, in college he met JOJO Hiroshige, with whom he started 'Fushoku No Marie', later know as Hijokaidan. Incapacitants followed as a solo project, and then expanded as a duo.

Fumio Kosakai is a central figure in the Japanese noise underground, best known as one half of the influential duo Incapacitants alongside Toshiji Mikawa. Originally active in Tokyo's experimental scene from the early 1980s, Kosakai also performed with groups such as C.C.C.C. and contributed to the development of the high-intensity "Japanoise" aesthetic that emerged during that period. His work typically centers on extreme electronics, feedback, and spontaneous performance, driven by a commitment to what the duo famously call "pure noise" - sound freed from conventional musical intention.

After Mikawa relocated to Tokyo in the late 1980s, Kosakai joined Incapacitants, helping transform the project from a solo endeavor into one of noise music's most defining partnerships. Their recordings and performances, marked by visceral volume, dense textures, and explosive improvisation, remain foundational touchstones for generations of experimental artists worldwide. Despite maintaining day jobs outside of music, Kosakai and Mikawa developed an international reputation through decades of uncompromising work, leaving a lasting mark on the evolution of noise as a global art form.