Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6812318 | Epoxy resins, epoxy resin mixtures, epoxy resin compositions and products of curing of the same | Yasumasa Akatsuka, Koji Nakayama, Katsuhiko Oshimi | 2004-11-02 |
| 6723801 | Polyphenol resin, process for its production, epoxy resin composition and its use | Yasumasa Akatsuka, Toyofumi Asano, Masahiro Imaizumi, Katsuhiko Oshimi | 2004-04-20 |