Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6425744 | Helical blade type compressor having a helical blade in a stationary cylinder | Takayoshi Fujiwara, Tetsuo Fukuda | 2002-07-30 |
| 6338617 | Helical-blade fluid machine | Makoto Hayano, Hirotsugu Sakata, Akira Morishima | 2002-01-15 |