Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7547410 | Metal heat treatment system hot-gas quenching apparatus and hot-gas heat treatment system | — | 2009-06-16 |
| 5792526 | Multilayer film and container | Katsushi Watanabe, Hideshi Okamoto | 1998-08-11 |