Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8998394 | Ink cartridge, and ink-jet recording apparatus using the same | Taku Ishizawa, Toshio Kumagai | 2015-04-07 |
| 8636347 | Ink cartridge, and ink-jet recording apparatus using the same | Taku Ishizawa, Toshio Kumagai | 2014-01-28 |
| 7784923 | Ink cartridge, and ink-jet recording apparatus using the same | Taku Ishizawa, Toshio Kumagai | 2010-08-31 |
| 7152965 | Ink cartridge, and ink-jet recording apparatus using the same | Taku Ishizawa, Toshio Kumagai | 2006-12-26 |
| 6848775 | Ink cartridge for recording apparatus | Taku Ishizawa | 2005-02-01 |
| 6758556 | Ink cartridge, and ink-jet recording apparatus using the same | Taku Ishizawa, Toshio Kumagai | 2004-07-06 |
| 6582068 | Ink cartridge, and ink-jet recording apparatus using the same | Taku Ishizawa, Toshio Kumagai | 2003-06-24 |
| 6220702 | Ink bag for ink jet type recording apparatus and package suitable for packing such ink bag | Masahiro Nakamura, Takeshi Kobayashi, Tadatoshi Honzawa, Michinari Tsukahara | 2001-04-24 |