Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5840423 | Polyvinyl alcohol-based fiber having excellent hot water resistance and production process thereof | Hirofumi Sano, Tomoyuki Sano, Yoshinori Hitomi, Akira Shimizu, Yusuke ANDO +1 more | 1998-11-24 |
| 4968561 | Synthetic fiber for use in reinforcing cement mortar or concrete and cement composition containing same | Akio Mizobe, Masaki Okazaki, Junichi Yoshinaka | 1990-11-06 |