Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5635543 | Expanded foamed bead of a rubber-modified styrene polymer | Masamichi Kaneko | 1997-06-03 |
| 5525639 | Expanded foamed bead of a rubber-modified styrene polymer | Masamichi Keneko | 1996-06-11 |