Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6106375 | Apparatus for processing waste liquid and waste gas in polishing device | — | 2000-08-22 |
| 4805348 | Flat lapping machine | Hatsuyuki Arai, Isao Nagahashi, Seiichi Maeda, Kazumi Yasuda, Kazuhiko Hirata +5 more | 1989-02-21 |