Issued Patents All Time
Showing 51–75 of 86 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6980759 | Process cartridge and electrophotographic image forming apparatus | Kazuo Chadani, Tomonori Mori | 2005-12-27 |
| 6961528 | Cartridge and electrophotographic image forming apparatus | Koji Yamaguchi, Tatsuya Shiratori | 2005-11-01 |
| 6947687 | Cartridge having locking portion for locking cartridge with an image forming apparatus and releasing portion to release the locking portion, and image forming apparatus having such a cartridge | Koji Yamaguchi, Tatsuya Shiratori | 2005-09-20 |
| 6941097 | Image forming apparatus having rotary unit for holding multiple developing devices | Shinjiro Toba, Jun Shao, Masahiro Shibata | 2005-09-06 |
| 6937834 | Spacing member, process cartridge, and electrophotographic image forming apparatus | Shinjiro Toba | 2005-08-30 |
| 6834173 | Image-forming-apparatus process cartridge having a locking portion to prevent the cartridge from disengaging from the image forming apparatus and an image forming apparatus mounting such a cartridge | Koji Yamaguchi, Tatsuya Shiratori | 2004-12-21 |
| 6735403 | IMAGE FORMING APPARATUS TO WHICH A DEVELOPING CARTRIDGE OR PROCESS CARTRIDGE ARE DETACHABLY MOUNTABLE COMPRISING DRIVING CONTROL MEANS FOR PERMITTING AND PREVENTING TRANSMISSION OF A DRIVING FORCE TO A WINDING MEMBER | Tatsuya Shiratori, Kouji Hashimoto, Tachio Kawai | 2004-05-11 |
| D489752 | Image forming apparatus | Koji Yamaguchi, Tomio Noguchi, Yumi Fujiwara | 2004-05-11 |
| 6681088 | Process cartridge, image forming apparatus and separating mechanism for separating developing member from photosensitive drum | Kojiro Yasui, Tadashi Horikawa, Susumu Nittani, Tatsuya Suzuki, Koji Yamaguchi | 2004-01-20 |
| 6560422 | DEVELOPMENT CARTRIDGE, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS, AND TONER SEAL MEMBER FOR UNSEALING AN OPENING FOR SUPPLYING DEVELOPER BY AUTOMATICALLY WINDING UP THE TONER SEAL MEMBER | Tatsuya Shiratori, Kouji Hashimoto, Tachio Kawai | 2003-05-06 |
| 6516168 | IMAGE FORMING APPARATUS, A CARTRIDGE AND DEVELOPER CONTAINER DETACHABLY MOUNTABLE THEREON, AND A DRIVING SOURCE FOR PROVIDING A FORCE FOR OPENING A SEALING MEMBER FOR REMOVABLY SEALING A DEVELOPER SUPPLYING OPENING | Tatsuya Shiratori | 2003-02-04 |
| 6498914 | Seal part and developing device having the same | Koji Hashimoto, Koji Yamaguchi | 2002-12-24 |
| 6496667 | Cartridge detachably attachable to image forming apparatus | Tatsuya Shiratori, Koji Hashimoto, Tachio Kawai | 2002-12-17 |
| 6445893 | Method of reattaching a toner seal | Koji Hashimoto, Tatsuya Shiratori, Tachio Kawai | 2002-09-03 |
| 6381430 | Assembling and disassembling methods for developing cartridge | Kanji Yokomori, Tachio Kawai | 2002-04-30 |
| 6345164 | Shutter pin and developing cartridge | Kanji Yokomori, Hisayoshi Kojima | 2002-02-05 |
| 6314255 | Developing frame for connection with a toner frame wherein a toner application roller crosses a connecting surface of the frames | Kanji Yokomori, Kouji Miura | 2001-11-06 |
| 6256467 | Side cover of developing cartridge, mounting method thereof and developing cartridge | Kanji Yokomori, Susumu Nittani | 2001-07-03 |
| 6104895 | Developing cartridge side cover, mounting method thereof and developing cartridge | Kanji Yokomori, Susumu Nittani | 2000-08-15 |
| 6072969 | Developing cartridge | Kanji Yokomori, Hisayoshi Kojima | 2000-06-06 |
| 6070029 | Coupling member, process cartridge, electrophotographic image forming apparatus and assembling method | Tsutomu Nishiuwatoko, Kouji Miura | 2000-05-30 |
| 6061535 | Developing cartridge, for a revolver type developing device, with sensing means for sensing the remaining toner | Kanji Yokomori, Tachio Kawai | 2000-05-09 |
| 6047150 | Developing cartridge having cover member | Tachio Kawai, Susumu Nittani | 2000-04-04 |
| 6032002 | Shutter, developing cartridge and electrophotographic image forming apparatus | Kanji Yokomori, Kouji Miura | 2000-02-29 |
| 6029027 | Developing cartridge and electrophotographic image forming apparatus | Kanji Yokomori, Kouji Miura | 2000-02-22 |