Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5354890 | Aromatic diamine intermediates useful in the preparation of polyimides | Shoji Tamai, Wataru Yamashita, Yuichi Okawa, Keizaburo Yamaguchi, Akihiro Yamaguchi | 1994-10-11 |
| 5322962 | Aromatic diamine intermediates useful in the preparation of polyimide | Shoji Tamai, Keizaburo Yamaguchi, Saburo Kawashima, Hideaki Oikawa, Toshiyuki Kataoka +1 more | 1994-06-21 |