Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5174821 | Hydraulic composition, formed products therefrom and segregation reduction agent for hydraulic substances | Yasunori Matsuoka, Takefumi Shindoh, Takafumi Naito, Akira Haze, Kiyoshi Nara | 1992-12-29 |