Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5164237 | Lining material for pipelines | Akio Morinaga, Hitoshi Saito, Masahiro Seshimo | 1992-11-17 |
| 5077107 | Lining material for pipelines | Akio Morinaga, Hitoshi Saito, Masahiro Seshimo | 1991-12-31 |