Issued Patents All Time
Showing 101–125 of 141 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6936800 | Heating device and fixing device | Osamu Takagi | 2005-08-30 |
| 6904259 | Fixing apparatus | Yoshinori Tsueda, Osamu Takagi, Toshihiro Sone | 2005-06-07 |
| 6900419 | Fixing apparatus | Osamu Takagi | 2005-05-31 |
| 6898409 | Fixing apparatus | Yoshinori Tsueda, Osamu Takagi, Toshihiro Sone | 2005-05-24 |
| 6889018 | Fixing unit | Osamu Takagi | 2005-05-03 |
| 6871041 | Fixing apparatus and image forming apparatus | Osamu Takagi, Yoshinori Tsueda, Toshihiro Sone | 2005-03-22 |
| 6868250 | Fixing mechanism for use in image forming apparatus | Osamu Takagi | 2005-03-15 |
| 6868249 | Induction heating fixing apparatus and image forming apparatus | Osamu Takagi | 2005-03-15 |
| 6861630 | Heating device and fixing device | Osamu Takagi | 2005-03-01 |
| 6813456 | Fixing device | Osamu Takagi, Kazuhiko Kikuchi, Hisaaki Kawano, Hiroshi Nakayama, Kenji Takano +3 more | 2004-11-02 |
| 6763206 | Image forming apparatus with an induction heating fixing unit for shortening warm up time | Osamu Takagi | 2004-07-13 |
| 6748184 | Image forming apparatus and fixing device | Noriyuki Umezawa, Taizo Kimoto, Kenji Takano, Hisaaki Kawano, Hiroshi Nakayama +3 more | 2004-06-08 |
| 6725000 | Fixing mechanism for use in image forming apparatus | Osamu Takagi | 2004-04-20 |
| 6724999 | Fixing apparatus | Kazuhiko Kikuchi, Toshiya Inomata, Osamu Takagi | 2004-04-20 |
| 6660979 | Fixing device including an electromagnetic inductive coil member providing inductive heating | Osamu Takagi, Kazuhiko Kikuchi, Hisaaki Kawano, Hiroshi Nakayama, Kenji Takano +3 more | 2003-12-09 |
| 6646239 | Fixing device using induction heating | Osamu Takagi | 2003-11-11 |
| 6642488 | Fixing device using induction heating and method for producing same | Osamu Takagi | 2003-11-04 |
| 6643476 | Image forming apparatus with accurate temperature control for various media having different thickness | Osamu Takagi | 2003-11-04 |
| 6643491 | Heating mechanism for use in image forming apparatus | Osamu Takagi | 2003-11-04 |
| 6625405 | Image forming apparatus and fixing device | Noriyuki Umezawa, Taizo Kimoto, Kenji Takano, Hisaaki Kawano, Hiroshi Nakayama +3 more | 2003-09-23 |
| 6522846 | Fixing device having connection member for supplying AC current to an electromagnetic induction coil | Osamu Takagi, Kazuhiko Kikuchi, Hisaaki Kawano, Hiroshi Nakayama, Kenji Takano +3 more | 2003-02-18 |
| 6518552 | Fixing device using induction heating in image forming system | Osamu Takagi | 2003-02-11 |
| 6507008 | Image forming apparatus and fixing device for fixing a toner image to a fixing device | Hiroshi Nakayama, Hisaaki Kawano, Kenji Takano, Taizo Kimoto, Noriyuki Umezawa +3 more | 2003-01-14 |
| 6498906 | Image forming apparatus having fixing device for fixing developer image on recording medium by induction-heating heat roller | Taizo Kimoto, Hisaaki Kawano, Hiroshi Nakayama, Kenji Takano, Noriyuki Umezawa +3 more | 2002-12-24 |
| 6496665 | Image forming apparatus and fixing device | Noriyuki Umezawa, Taizo Kimoto, Kenji Takano, Hisaaki Kawano, Hiroshi Nakayama +3 more | 2002-12-17 |