Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7037553 | Manufacturing process for ink-jet recording medium | Kiyoshi Endo, Chikao Mamiya, Tomohiko Sakai | 2006-05-02 |
| 6902781 | Ink-jet recording medium, silica particles and silica dispersion | Kiyoshi Endo, Tomohiko Sakai | 2005-06-07 |