Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4998716 | Sorter with jam-preventing members | Keiji Okumura | 1991-03-12 |
| 4826750 | Development process in electrophotography utilizing carbon black of specified coloring power | Mamoru Kato, Kouji Maekawa, Naoka Fujie, Hiroyuki Hazama | 1989-05-02 |