Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7547376 | Paper improver | — | 2009-06-16 |
| 6462110 | Concrete admixture | Haruya Mino, Tatsuo Izumi, Keishi Shimokawa | 2002-10-08 |
| 5911820 | Concrete admixture | Fujio Yamato, Yoshinao Kono, Sayuri Nakamura | 1999-06-15 |
| 5707445 | Admixture for concrete | Fujio Yamato, Shuichi Fujita, Yoshiaki Tanisho, Kazushige Kitagawa | 1998-01-13 |
| 5651817 | Cement dispersant | Fuzio Yamato | 1997-07-29 |