Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6273347 | Pre-expanded particles of propylene resin, process for preparing the same and flow-restricting device | Tsuyoshi Mihayashi, Naruhiko Akamatsu, Yutaka Yanagihara, Takeshi Satoh | 2001-08-14 |
| 6130266 | Pre-expanded particles of propylene resin, process for preparing the same and flow-restricting device | Tsuyoshi Mihayashi, Naruhiko Akamatsu, Yutaka Yanagihara, Takeshi Satoh | 2000-10-10 |