Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7538150 | Dihydrobenzoxazine ring-containing resin, phenolic-triazine-aldehyde condensate and epoxy resin | Kenichi Oohori, Yoshihiro Nakamura, Hikari Murai, Yoshiyuki Takeda, Yasuyuki Hirai +5 more | 2009-05-26 |
| 7041772 | Method for producing benzoxazine resin | Teruki Aizawa, Yasuyuki Hirai | 2006-05-09 |