Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6357963 | Concrete for jointing and method of jointing using said concrete | Yoichi Abe, Shoichi Kameta, Ryoichi Sato, Satoshi Tanaka | 2002-03-19 |
| 5181961 | Cement composition | Yasuhide Umaki, Fumiaki Hondo, Shigeru Okada | 1993-01-26 |