Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8188156 | Polyol composition, foaming composition and polyurethane foam | Kenji Yamanaka, Kouji Fukui, Masashi Obata, Katsumi Inaoka, Masaaki Shibata | 2012-05-29 |
| 5091438 | Method of producing rigid urethane foam | Yoshihiko Tairaka | 1992-02-25 |