Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5689141 | Compressor drive system for a natural gas liquefaction plant having an electric motor generator to feed excess power to the main power source | Yoshitsugi Kikkawa, Osamu Yamamoto, Yasuhiro Naito | 1997-11-18 |