Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4854004 | Device for clearing the hole blockage of a liquid resist substrate | Tadao Omata | 1989-08-08 |
| 4764791 | Work alignment apparatus for double-sided exposure of a work | Tadao Omata | 1988-08-16 |