Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6646092 | Method for manufacturing amphoteric urethane resin and amphoteric urethane resin and resin composition obtained therewith | Takeshi Baba, Seiji Asaoka, Tetsuo Sakurai | 2003-11-11 |