Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5336749 | Alicyclic diamines, alicyclic diisocyanates and polyisocyanato-isocyanurates and method for the preparation thereof | Ryuji Haseyama, Kouzou Hayashi, Katsuyoshi Sasagawa, Kazuyuki Kuroda, Taisaku Kano +1 more | 1994-08-09 |
| 5324704 | Fluoran compounds, crystalline toluene adducts thereof, recording material comprising same and process for their preparation | Masakatsu Nakatsuka, Atsuo Otsuji, Kiyoharu Hasegawa, Akihiro Yamaguchi | 1994-06-28 |