Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6264739 | Dispersant for plaster | Fujio Yamato, Yoshinao Kohno | 2001-07-24 |
| 5707445 | Admixture for concrete | Fujio Yamato, Shuichi Fujita, Yoshiaki Tanisho, Haruyuki Satoh | 1998-01-13 |
| 5256199 | Cement admixture | Fuzio Yamato, Shuichi Fujita, Tatsuo Izumi, Yoshiaki Tanisho | 1993-10-26 |