Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6002015 | Method of producing 1,2,4-triazole | Chiharu Nishizawa, Toshikiyo Kurai | 1999-12-14 |
| 5986134 | Processes for producing ketazine and hydrazine | Yasuhisa Kuriyama, Kiyoshi Yoshida | 1999-11-16 |
| 5744115 | Preparation process of hydrazine hydrate | Yasuhisa Kuriyama, Kiyoshi Yoshida | 1998-04-28 |