Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6574451 | Small-size color electro-photographic apparatus | Masashi Yamamoto, Nobuyoshi Hoshi, Seiji Maruo | 2003-06-03 |
| 6569588 | Electrophotographic toner, production method thereof and electrophotographic image forming system | Akiko Oikawa, Akira Shimada, Masahiko Saito | 2003-05-27 |
| 6560435 | Electrophotographic image forming device having projections on a surface of an intermediate transfer body | Masashi Yamamoto, Koichi Niwa, Tetsuo Ishikawa, Shinichi Hosaka, Masahiro Nakano +1 more | 2003-05-06 |
| 6516171 | Color electrographic apparatus with developing device having separated toner supply and recovery chambers | Kazushige Oonishi, Masahiko Saito, Tadashi Okano, Shoji Takeya | 2003-02-04 |