Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8308463 | Resin screw rotor molded to a metallic shaft | Yasuto Kataoka, Naoki Kikuchi, Naoya Fujiwara | 2012-11-13 |
| 7094037 | Oil-cooled compressor | Hajime Nakamura, Shoji Yoshimura | 2006-08-22 |
| 6755620 | Independent rotational speed control of multi-stage variable speed compressor | Hajime Nakamura | 2004-06-29 |
| 6599093 | Compressor having speed and intake regulation valve control | — | 2003-07-29 |