Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6830321 | Liquid tank and manufacture method therefor, ink jet apparatus and manufacture method therefor, and head cartridge and image forming apparatus | Hideaki Okamoto | 2004-12-14 |
| 6805436 | Ink storing device | Toshihiko Ujita, Junji Shimoda, Hideaki Okamoto | 2004-10-19 |
| 6755500 | Ink tank, ink-jet cartridge, ink-supplying apparatus, ink-jet printing apparatus and method for supplying ink | Hirofumi Hirano, Yohji Ara, Hiroyuki Inoue, Hideo Fukazawa, Tetsuji Kurata +4 more | 2004-06-29 |