Has a close working relationship with Yoshihiro Nishimura's Nishimura Motion Picture Model Makers Group (Y.K. Nishimura Eizô), as he and Nishimura are good friends.
Oira sukeban (2006) became the international breakthrough movie of Noboru Iguchi's career, as a result of the coverage it received from then-independent movie news website Twitch, beginning a month before its Japanese theatrical release.
The "true source of virtually all English language" information online relating to him and Yoshihiro Nishimura is Marc Walkow, according to Todd Brown of XYZ Films' movie news website screenanarchy.com.
Is a member of Nihon Eiga Kantoku Kyôkai a/k/a Directors Guild of Japan (DGJ).