Issued Patents 1994
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5376615 | Color-developing compositions and their use | Yoshimitsu Tanabe, Kiyoharu Hasegawa, Akihiro Yamaguchi | 1994-12-27 |
| 5364967 | Aromatic diamine compounds, bismalemide compounds, thermosetting resin forming compositions therefrom, resin therefrom, and methods for their preparation | Tatsuhiro Urakami, Yoshimitsu Tanabe, Midori Yamazaki, Shoji Tamai, Norimasa Yamaya +2 more | 1994-11-15 |
| 5354839 | Polyimide and preparation process of same | Wataru Yamashita, Yoshihiro Sakata, Toshiyuki Kataoka, Yuichi Okawa, Hideaki Oikawa +4 more | 1994-10-11 |
| 5354890 | Aromatic diamine intermediates useful in the preparation of polyimides | Shoji Tamai, Wataru Yamashita, Yuichi Okawa, Yuko Ishihara, Akihiro Yamaguchi | 1994-10-11 |
| 5326739 | Process for producing 3,5-di(.alpha.-methylbenzyl)salicylic acid derivative, and use of polyvalent-metal-modified product thereof as color developer | Yoshimitsu Tanabe, Akihiro Yamaguchi | 1994-07-05 |
| 5322962 | Aromatic diamine intermediates useful in the preparation of polyimide | Shoji Tamai, Yuko Ishihara, Saburo Kawashima, Hideaki Oikawa, Toshiyuki Kataoka +1 more | 1994-06-21 |