Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6547381 | Ink, image recording process, ink cartridge, recording unit, ink set, crust-preventing method and image forming apparatus | Shinya Mishina, Koichi Osumi | 2003-04-15 |
| 6521034 | Ink, ink set, ink cartridge, recording unit, color-image recording apparatus, image recording process, color-image forming process, and method for improving density of ink-jet recorded image | Koichi Osumi, Shinya Mishina | 2003-02-18 |