Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6569234 | Cement dispersant and cement composition comprising this | Akihiko Yamashita, Hiromichi Tanaka, Masaya Yamamoto, Toru Uno, Yoshiyuki Onda | 2003-05-27 |
| 6545083 | Cement additive | Tsutomu Yuasa, Koichiro Nagare, Hirokatsu Kawakami | 2003-04-08 |