Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4972677 | Method of cleaning wafers or the like | Tadashi Ookatsu | 1990-11-27 |
| 4648395 | Synchronized feed type oxygen concentrator for use in an open breathing system | Toru Sato | 1987-03-10 |