Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5680720 | Illuminated signboard | Harumitsu Asazuma | 1997-10-28 |
| 5667872 | Synthetic paper with multi-layer structure and excellent printing property | Akihiko Ohno, Atsushi Ishige, Koichi Asami | 1997-09-16 |