Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4957994 | Epoxy resins containing imido rings, production process thereof and epoxy resin compositions containing the same | Yoshimitsu Tanabe, Keizaburo Yamaguchi, Akihiro Yamaguchi | 1990-09-18 |
| 4937318 | Aromatic amine resins | Keizaburo Yamaguchi, Yoshimitsu Tanabe, Akihiro Yamaguchi, Norimasa Yamaya, Masahiro Ohta | 1990-06-26 |