Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7645136 | Continuous heat treatment furnace and heat treatment method | Makoto Arai, Yoshio Kondo | 2010-01-12 |
| 4802845 | Apparatus for driving rollers of roller hearth kiln | — | 1989-02-07 |