Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6736594 | Axial-flow type hydraulic machine | Kouichi Irie, Yoshio Anzai, Junichi Kurokawa | 2004-05-18 |
| 6582189 | Turbo machines | Kouichi Irie, Akira Manabe, Junichi Kurokawa | 2003-06-24 |
| 6540482 | Turbo-type machines | Kouichi Irie, Sumio Sudo, Junichi Kurokawa | 2003-04-01 |
| 6514034 | Pump | Kouichi Irie, Taiji Hashimoto, Hitoharu Kimura | 2003-02-04 |
| 6435819 | Turbo machines | Kouichi Irie, Akira Manabe, Junichi Kurokawa | 2002-08-20 |
| 6302643 | Turbo machines | Junichi Kurokawa, Hitoharu Kimura, Takahide Nagahara, Sumio Sudo, Akira Manabe +1 more | 2001-10-16 |
| 6290458 | Turbo machines | Kouichi Irie, Akira Manabe, Junichi Kurokawa | 2001-09-18 |