Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7348382 | Polyvinyl alcohol based block copolymer and pigment dispersion aqueous liquid using the same and recording liquid | Nobuhiko Ueno, Takahiro Saitou, Hideko Akai, Hideaki Tanaka | 2008-03-25 |
| 6918955 | Ink-jet recording liquid and process for producing the same | Hisao Takeuchi, Hideaki Tanaka, Kazuhiro Maruyama, Katsuhito Kanazawa | 2005-07-19 |