Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5703145 | Hot melt type ink composition for ink jet | Masahiko Sakai, Michio Ebata, Ren Itoh | 1997-12-30 |
| 5350789 | Hot-melt ink composition | Ren Itoh, Masahiko Sakai, Riyuuichi Shimizu | 1994-09-27 |