Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4959687 | Bias power source controller for an image forming apparatus | Eiichi Katoh, Tsunehide Takahashi, Koichi Asakura | 1990-09-25 |
| 4952976 | Copier with a toner supply device | Eiichi Katoh | 1990-08-28 |
| 4602778 | Copying machine equipped with a correction apparatus for draft | Hiroshi Hirose, Tokuzo Kaneda, Tomio Sasaki, Kunio Hibi | 1986-07-29 |