Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5206333 | Method of producing a naphthol-modified phenolic resin of highly increased molecular weight | Haruaki Sue, Ken Nanaumi, Ken Madarame, Shinsuke Hagiwara | 1993-04-27 |