Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4963929 | Cleaning device for toner detecting sensor | Masahide Ueda | 1990-10-16 |
| 4347299 | Method of controlling toner concentration for electrophotographic copying apparatus | Hiroshi Ozawa | 1982-08-31 |