- Is an original member of the Fundoshi Corps, along with Yoshihiro Nishimura and Yukihiko Yamaguchi.
- 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).
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