Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4826750 | Development process in electrophotography utilizing carbon black of specified coloring power | Mamoru Kato, Kouji Maekawa, Kenichi Matsunobu, Hiroyuki Hazama | 1989-05-02 |