Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6537365 | Cement clinker, cement composition, method for producing cement clinker, and method for treatment of waste containing alkali component | Tatsushi Akiyama, Kazuhiro Kano | 2003-03-25 |
| 6419741 | Cement clinker and cement containing the same | Seiichi Nagaoka, Takanori Yamamoto, Tatsushi Akiyama, Ayaji Yasumoto | 2002-07-16 |