Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7767173 | Apparatus for filtering volume-reduced gel-state polystyrene resin | Noriomi Hayashi | 2010-08-03 |
| 7666368 | Apparatus for treating volume-reduced polystyrene resin in gel state for material separation and recovery | Noriomi Hayashi | 2010-02-23 |
| 7365151 | Solvent for treating polystyrene resin and method of treating polystyrene resin with the same | — | 2008-04-29 |