Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4915739 | Modified carbon fiber reinforced cement | Yuji Noguchi, Hiromichi Sakai, Kazuhiro Sone | 1990-04-10 |
| 4916012 | Cement reinforcing fiber | Yuji Noguchi, Hiromichi Sakai, Kazuhiro Sone | 1990-04-10 |
| 4910076 | Fiber reinforced cement mortar product | Tatsuo Ando, Takeshi Ikeda, Hiromichi Sakai, Hirobumi Otaguro | 1990-03-20 |
| 4895890 | Calcium silicate shaped product | Mitsuru Swata, Noriyuki Ariyama, Yuji Noguchi | 1990-01-23 |