Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5346185 | Vacuum-suction degassing apparatus | Nobuo Miyagawa, Kunji Yamamoto | 1994-09-13 |
| 5324487 | Vacuum-suction degassing apparatus | Nobuo Miyagawa, Kunji Yamamoto | 1994-06-28 |
| 5306472 | Vacuum-suction degassing method and an apparatus therefor | Nobuo Miyagawa, Kunji Yamamoto | 1994-04-26 |