| 1999 | Metal Tastes Like Orange. Secret Recording 1 | Masahiko Okura / Günter Müller / Taku Sugimoto / Otomo Yoshihide | 1 |
| 2002 | Bject | Masahiko Okura, Utah Kawasaki & Tetuzi Akiyama | 1 |
| 2003 | Atami | Alfredo Costa Monteiro, Ruth Barberán, Ferran Fages, Masahiko Okura, Masafumi Ezaki & Taku Unami | 1 |
| 2005 | Tanker | Okura, Müller, Yoshida | 1 |
| 2022 | CTX1 | 大蔵雅彦 | 1 |
| 2024 | Masahiko Okura / Naoto Yamagishi / Fumi Endo | Masahiko Okura / Naoto Yamagishi / Fumi Endo | 1 |
