Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6733007 | Sheet material conveying device; image forming apparatus and sheet processing device | Yasuyoshi Hayakawa, Tomoyuki Araki, Masayoshi Fukatsu | 2004-05-11 |
| 6735415 | Sheet postprocessing apparatus and image forming apparatus | Kenichiro Isobe, Yasuyoshi Hayakawa, Takashi Kuwata, Masayoshi Fukatsu | 2004-05-11 |
| 6722646 | Sheet treating apparatus and image forming apparatus | Yasuyoshi Hayakawa, Takashi Kuwata, Kenichiro Isobe, Masayoshi Fukatsu, Hironobu Ata | 2004-04-20 |