Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5204202 | Electrophotographic photosensitive element comprising a protective layer with a porous surface impregnated with lubricant | Fuminori Ishikawa, Kunihiro Tamahashi, Shigeharu Onuma, Masatoshi Wakagi, Masanobu Hanazono +4 more | 1993-04-20 |