Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5336772 | Method for preparing N-fluoropyridinium salt | Kazunori Nukui | 1994-08-09 |
| 5286292 | Method of treating fly ash and fly ash cement | Kazuhisa Tsukada, Takeshi Kuroda, Takane Mukaino | 1994-02-15 |