Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5336749 | Alicyclic diamines, alicyclic diisocyanates and polyisocyanato-isocyanurates and method for the preparation thereof | Ryuji Haseyama, Masatoshi Takagi, Kouzou Hayashi, Katsuyoshi Sasagawa, Kazuyuki Kuroda +1 more | 1994-08-09 |
| 5210286 | Alicyclic diamines, alicyclic diisocyanates and polyisocyanato-isocyanurates and method for the preparation thereof | Ryuji Haseyama, Masatoshi Takagi, Kouzou Hayashi, Katsuyoshi Sasagawa, Kazuyuki Kuroda +1 more | 1993-05-11 |
| 5171468 | Aromatic polyisocyanate | Ryuzi Haseyama, Kouzou Hayashi, Katsuyoshi Sasagawa, Akihiro Yamaguchi | 1992-12-15 |
| 5159045 | Polyisocyanato-isocyanurate, and preparation process and use of the same | Ryuji Haseyama, Kouzou Hayashi, Kazuyuki Kuroda, Taisaku Kano, Takayoshi Sekido +1 more | 1992-10-27 |
| 5126426 | Alicyclic diamines, alicyclic diisocyanates and polyisocyanato-isocyanurates and method for the preparation thereof | Ryuji Haseyama, Masatoshi Takagi, Kouzou Hayashi, Katsuyoshi Sasagawa, Kazuyuki Kuroda +1 more | 1992-06-30 |
| 5124429 | Polyisocyanatoalkylphenyl-isocyanurates, method for the preparation thereof and use thereof | Ryuji Haseyama, Kazuyuki Kuroda, Kouzou Hayashi, Katsuyoshi Sasagawa, Taisaku Kano | 1992-06-23 |
| 5091496 | Polyisocyanatoalkylphenyl-isocyanurates, method for the preparation thereof and use thereof | Ryuji Haseyama, Kazuyuki Kuroda, Kouzou Hayashi, Katsuyoshi Sasagawa, Taisaku Kano | 1992-02-25 |