Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679433 | Noncombustible sheet, noncombustible laminated sheet, noncombustible honey comb structural material, noncombustible board, noncombustible molded product, and manufacturing method thereof | Kozo Hayashi, Akio Ito, Koji Tsuchiya, Kyoichi Fujimoto | 1997-10-21 |