Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6919388 | Cement admixture and cement composition | Tomotaka Nishikawa, Daisuke Imai, Hiromichi Tanaka, Tsuyoshi Hirata, Tsutomu Yuasa | 2005-07-19 |
| 6900275 | (Meth) acrylic acid (salt) polymer and its production process | Takashi Tomita, Tsutomu Yuasa | 2005-05-31 |