Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5184936 | Multiple-gas-phase tidal power generation apparatus and method | — | 1993-02-09 |
| 5169781 | Continuous perfusion apparatus utilizing aeration | Youko Nojima | 1992-12-08 |
| 5139657 | Multiple-gas-phase settling tank | Youko Nojima | 1992-08-18 |
| 5073311 | Multiple-gas-phase liquid treatment apparatus | Youko Nojima | 1991-12-17 |
| 5054422 | Multi-layered gaseous phase cultivation | Youko Nojima | 1991-10-08 |