Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6239241 | Concrete admixture | Haruyuki Sato, Daisuke Hamada, Takahiro Sato, Kyoichi Shirota | 2001-05-29 |
| 5651817 | Cement dispersant | Haruyuki Satoh | 1997-07-29 |
| 5256199 | Cement admixture | Shuichi Fujita, Tatsuo Izumi, Yoshiaki Tanisho, Kazushige Kitagawa | 1993-10-26 |
| 5137577 | Cement additive | Masanori Iizuka, Tatsuya Mizunuma, Toshiharu Kojima, Akitoshi Tuji | 1992-08-11 |
| 4963190 | Dispersant composition for cement | Tatsuya Mizunuma, Ryoichi Tamaki, Shoji Kanzaki, Yoshiaki Tanisho | 1990-10-16 |