Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6719469 | Ink jet recording apparatus capable of performing a duplex print operation | Tsumori Sato, Masanori Horike, Masato Yokoyama, Masumi Sato | 2004-04-13 |
| 6636709 | Fixing device having temperature detecting member and image forming apparatus using said fixing device | Hideo Furukawa, Takuya Ejiri, Hiroyuki Gotoh, Masanao Ehara, Hirofumi Ogawa +1 more | 2003-10-21 |
| 6628916 | Fixing device preventing rubbing of toner image | Masanao Ehara, Hideo Furukawa, Hiroshi Yoshinaga, Hirofumi Ogawa, Hiroyuki Gotoh | 2003-09-30 |
| 6567643 | Apparatuses for color image formation, tandem color image formation and image formation | Hiroyasu Shijo, Masumi Sato, Tomotoshi Nakahara | 2003-05-20 |
| 6416176 | Ink-jet printing system having an improved sheet transport mechanism | Masumi Sato, Masato Yokoyama | 2002-07-09 |
| 6263185 | Image forming apparatus with a scanner input | Yasuhisa Kato, Hidenobu Endo, Masaaki Yoshikawa | 2001-07-17 |
| 6134418 | Image forming apparatus having a casing mounted to the apparatus at an upper portion of a stacking device | Yasuhisa Kato, Hidenobu Endo, Masaaki Yoshikawa | 2000-10-17 |
| 6112047 | Image forming apparatus having a substantially vertical sheet transport path and a relaying mechanism that cooperate to transfer a sheet to a sheet discharge section | Yasuhisa Kato, Hidenobu Endo, Masaaki Yoshikawa | 2000-08-29 |
| 5839032 | Image forming apparatus having selectably controlled sheet discharge paths | Masaaki Yoshikawa, Yasuhisa Katoh | 1998-11-17 |
| 5745247 | Image forming apparatus having a controlled fixing unit | Yasuhisa Kato | 1998-04-28 |
| 5729798 | Heat roller fixing device having positioning members | Yasuhisa Kato | 1998-03-17 |
| 5481350 | Heat roller fixing device divided into first and second frames and with positioning members of the first frame | Yasuhisa Kato | 1996-01-02 |
| 5400123 | Image forming apparatus capable of erasing an image recorded in a sheet | Masumi Sato, Keizo Yasuda, Kenichi Hasegawa, Eiji Sawamura, Masahiko Sato +2 more | 1995-03-21 |