Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6835692 | Heat-sensitive recording material containing oxonol dye | Shiki Ueki | 2004-12-28 |
| 6720421 | PHENYLURETHANE COMPOUNDS AND METHODS FOR PRODUCING SAME, ASYMMETRIC UREA COMPOUNDS AND METHODS FOR PRODUCING SAME, BARBITURIC ACID DERIVATIVE, AND DIAZO THERMAL RECORDING MATERIAL CONTAINING THE DERIVATIVE | Akinori Fujita, Naoto Yanagihara, Yohsuke Takeuchi, Daisuke Arioka, Sachiko Arai | 2004-04-13 |
| 6703345 | Diazonium salt and heat-sensitive recording material | Kimiatsu Nomura, Tatsuo Kawabuchi, Hisato Nagase, Satoshi Higuchi, Yoshihiro Jinbo | 2004-03-09 |