Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5105527 | Method of and apparatus for processing wires fastening compressed wastepaper block | — | 1992-04-21 |
| 4242163 | Process for manufacturing magnesium carbonate board | Shiro Nakajima | 1980-12-30 |