Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5682574 | Developing apparatus having reciprocating cleaning device for photodetector | Haruhisa Oshida, Keiji Okano, Masahide Kinoshita, Koji Takahashi, Yasushi Shimizu | 1997-10-28 |
| 5649264 | Developing unit having optical detection of a residual quantity of developer in a developer container | Keiji Okano, Masahide Kinoshita, Yasushi Shimizu | 1997-07-15 |