Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5346185 | Vacuum-suction degassing apparatus | Masamichi Sano, Kunji Yamamoto | 1994-09-13 |
| 5324487 | Vacuum-suction degassing apparatus | Masamichi Sano, Kunji Yamamoto | 1994-06-28 |
| 5306472 | Vacuum-suction degassing method and an apparatus therefor | Masamichi Sano, Kunji Yamamoto | 1994-04-26 |
| 5167698 | Vacuum-suction degassing method and an apparatus therefor | Kunji Yamamoto, Masamichi Sano | 1992-12-01 |