Issued Patents 2002
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6490792 | Ink tank cartridge, a manufacturing method thereof and a packaging structure of the ink tank cartridge | Hiroyuki Ishinaga, Kazuaki Masuda, Yuji Kamiyama | 2002-12-10 |
| 6478416 | Sealing method for ink cartridge | Hiroyuki Ishinaga, Kazuaki Masuda, Masahiko Higuma, Yuji Kamiyama, Yoichi Taneya | 2002-11-12 |
| 6450616 | Substrate with multiple heat generating elements for each ejection opening, ink jet printing head and ink-jet printing apparatus with same | Masahiko Kubota, Masami Ikeda, Masami Kasamoto, Tsutomu Abe, Hiroyuki Ishinaga +3 more | 2002-09-17 |
| 6428154 | Ink cartridge and a method for sealing an aperture provided for such cartridge | Yuji Kamiyama, Kazuaki Masuda, Hiroaki Tanaka, Hiroyuki Ishinaga | 2002-08-06 |
| 6336719 | Ink tank cartridge, a manufacturing method thereof and a packaging structure of the ink tank cartridge | Hiroyuki Ishinaga, Kazuaki Masuda, Yuji Kamiyama | 2002-01-08 |