Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6809709 | Organic electro-luminescence device | Osamu Yokoyama | 2004-10-26 |
| 6746810 | Image formation method, replenishing toner used in this method and method of producing the same, and carrier-containing toner cartridge | Chiaki Suzuki, Masahiro Takagi, Atsuhiko Eguchi, Satoshi Inoue, Sakon Takahashi +4 more | 2004-06-08 |