Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5284090 | Color printing apparatus for both sides of printing paper | Yuichi Okamura | 1994-02-08 |
| 5152222 | Color printing apparatus for both sides of printing paper | Yuichi Okamura | 1992-10-06 |