Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6550894 | Ink bottle | Fumihiro Ueno, Nobuyuki Koyama | 2003-04-22 |
| 5436102 | Magnetic developing agent and electrophotographic apparatus using said agent | Shunichi Kubo | 1995-07-25 |