Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5701203 | Astigmatism correcting element | — | 1997-12-23 |
| 5665457 | Printed decorative paper having a three dimensional pattern and a process for the production thereof | Tohru Sato, Yoshimi Yoshida | 1997-09-09 |