Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7767173 | Apparatus for filtering volume-reduced gel-state polystyrene resin | Shigenobu Hamano | 2010-08-03 |
| 7666368 | Apparatus for treating volume-reduced polystyrene resin in gel state for material separation and recovery | Shigenobu Hamano | 2010-02-23 |