Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7604335 | Ink cartridge | Hiroshi Tomioka, Hiroyuki Takuhara, Hideki Yamakami | 2009-10-20 |
| 7520927 | Liquid ink for ink jet and ink jet recording method using the ink | Hideki Yamakami, Hiroshi Tomioka, Hiroyuki Takuhara | 2009-04-21 |
| 7510604 | Cyan ink for ink jet and ink jet recording method | Hiroshi Tomioka, Hiroyuki Takuhara, Hideki Yamakami | 2009-03-31 |