Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5584927 | Hydraulic substance with water stable particle coating | Toshio Yonezawa, Kenrou Mitsui, Yousaku Ikeo, Tooru Okuno, Etsurou Asakura +3 more | 1996-12-17 |
| 5174820 | Durability improving agent for cement-hydraulic-set substances, method of improving same, and cement-hydraulic-set substances improved in durability | Masaharu Sakuta, Toshio Saito | 1992-12-29 |
| 4975121 | Durability improving agent for cement-hydraulic-set substances, method of improving same, and cement-hydraulic-set substances improved in durability | Masaharu Sakuta, Toshio Saito | 1990-12-04 |