Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698290 | Paper for packaging food and production method thereof | Mikio Tadokoro | 1997-12-16 |
| 5642183 | Spatial filter used in a reduction-type projection printing apparatus | Takashi Sugihara, Junkou Takagi | 1997-06-24 |