Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5914428 | Process for preparation of isocyanate compounds | Toyokazu Yagii, Kenji Oka, Yasutaka Tanaka, Hidetaka Kojima, Kiyokazu Murata | 1999-06-22 |
| 5789614 | Process for preparation of aliphatic diisocyanate compounds | Toyokazu Yagii, Kenji Oka, Yasutaka Tanaka, Hidetaka Kojima | 1998-08-04 |
| 5773643 | Process for preparation of isocyanate compounds | Toyokazu Yagii, Kiyokazu Murata | 1998-06-30 |