Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6830317 | Ink jet recording head | Ken Tsuchii, Mineo Kaneko, Masaki Oikawa, Kenji Yabe, Keiji Tomizawa | 2004-12-14 |
| 6815381 | Fibrous material, production process of the fibrous material, ink-absorbing, treating process of the ink-absorbing member, ink tank container and ink cartridge | Hajime Yamamoto, Eiichiro Shimizu, Yoshihisa Takizawa, Yuji Hamasaki, Jun Hinami +2 more | 2004-11-09 |
| 6783220 | Ink jet recording apparatus using recording unit with ink cartridge having ink inducing element | Toshihiko Ujita, Masanori Takenouchi | 2004-08-31 |