Issued Patents 2005
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6919297 | Heat-sensitive recording material | — | 2005-07-19 |
| 6897886 | Indolylphthalide compound and thermal recording material using the same | Satoru Yamada | 2005-05-24 |
| 6890880 | Heat-sensitive recording material | Hisao Yamada, Naoto Yanagihara | 2005-05-10 |
| 6869908 | Thermal recording material | Shiki Ueki | 2005-03-22 |