Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6986467 | IC card | Hideki Takahashi | 2006-01-17 |
| 6341904 | Image forming apparatus and image forming process | — | 2002-01-29 |
| 5260167 | Light-sensitive litho printing plate requiring no dampening water | Nobumasa Sasa, Tetsuya Taniguchi, Hiroshi Tomiyasu, Akeo Kasakura | 1993-11-09 |