Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5686181 | Carbon fibers for reinforcement of cement and cement composite material | Katsumi Takano, Yasushi Katsuta, Hideyuki Nakajima, Yoshikazu Nagata, Sadatoshi Ohno +3 more | 1997-11-11 |