Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6777456 | Method for producing a rigid polyurethane foam | Hiroyuki Kiso, Katsumi Tokumoto | 2004-08-17 |
| 6723819 | Catalyst for production of a polyurethane resin and method for producing a polyurethane resin | Takahiro Masuda, Hiroaki Nakamura | 2004-04-20 |