Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6384097 | Amine catalyst for producing rigid polyurethane foam | Katsumi Tokumoto, Shuichi Okuzono | 2002-05-07 |
| 6384177 | Process for producing polyurethane and polyisocyanurate | Katsumi Tokumoto, Shuichi Okuzono | 2002-05-07 |