Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6830709 | Method of measuring liquid composition, liquid composition, ink set, method for forming colored portion on recording medium, and ink-jet recording apparatus | Hiroshi Tomioka, Masao Kato | 2004-12-14 |
| 6821328 | Liquid composition, ink set, method of forming colored portion in recording medium and ink-jet recording apparatus | Hiroshi Tomioka, Yutaka Kurabayashi, Masao Kato | 2004-11-23 |
| 6780901 | Ink, ink-jet recording method, ink-jet recording apparatus, and coloring material | Yutaka Kurabayashi, Hiroyuki Takuhara | 2004-08-24 |
| 6719420 | Liquid composition, ink set, method for forming colored portion on recording medium, and ink-jet recording apparatus | Hiroshi Tomioka, Yutaka Kurabayashi, Masao Kato | 2004-04-13 |