Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7068955 | Image forming apparatus having developer amount detector | Shinya Yamamoto, Hiroshi Sasame, Kazushige Sakurai, Takashi Hibi, Hiroaki Ogata | 2006-06-27 |
| 7058319 | Image forming apparatus and cartridge detachably mountable thereto | Kazushige Sakurai | 2006-06-06 |
| 6931218 | Image forming apparatus and control method therefor, process cartridge and memory device | Masanobu Saito | 2005-08-16 |
| 6925267 | MEMORY DEVICE STORING INFORMATION WARNING A USER ABOUT THE DEVELOPER-REMAINING AMOUNT, A PROCESS CARTRIDGE INCLUDING A MEMORY STORING SUCH INFORMATION, AND A CONTROL SYSTEM AND A MEMORY SYSTEM FOR WARNING A USER ABOUT THE DEVELOPER-REMAINING AMOUNT | Shinya Yamamoto, Hiroshi Sasame, Kazushige Sakurai, Takashi Hibi, Hiroaki Ogata | 2005-08-02 |
| 6912366 | IMAGE FORMING APPARATUS COMPRISING MEANS FOR DETECTING AN AMOUNT OF DEVELOPER CONTAINED IN A DEVELOPER CONTAINER, A MEMORY FOR STORING THE AMOUNT DETECTED BY THE DETECTING MEANS, AND CONTROL MEANS FOR UPDATING THE INFORMATION STORED IN THE MEMORY | Shinya Yamamoto, Hiroshi Sasame, Kazushige Sakurai, Takashi Hibi, Hiroaki Ogata | 2005-06-28 |
| 6850714 | Image forming apparatus, cartridge, image forming system and storage medium | Kazushige Sakurai, Kazumi Yamauchi | 2005-02-01 |
| 6807382 | Image forming apparatus and cartridge detachably mountable thereto | Kazushige Sakurai | 2004-10-19 |
| 6775487 | Image forming apparatus, unit detachably attachable to image forming apparatus and developer remaining amount displaying system | — | 2004-08-10 |
| 6721522 | PROCESS CARTRIDGE DETACHABLY MOUNTABLE TO A MAIN ASSEMBLY OF AN IMAGE FORMING APPARATUS COMPRISING TRANSFERRING MEANS FOR TRANSFERRING A COLOR DEVELOPER IMAGE ONTO THE IMAGE RECEIVING MATERIAL AND SUCH AN IMAGE FORMING APPARATUS | — | 2004-04-13 |
| 6714745 | Image forming apparatus having a plurality of image forming stations, and unit detachably mountable on the apparatus | Hiroshi Sasame, Hiroaki Ogata, Shinya Yamamoto | 2004-03-30 |
| 6694107 | Image forming apparatus and cartridge detachably mountable thereto | Kazushige Sakurai | 2004-02-17 |
| 6647225 | Charging device for frictionally-charging an image bearing member and image forming apparatus including same | — | 2003-11-11 |
| 6608975 | Image forming apparatus and cartridge detachably mountable thereto | Kazushige Sakurai | 2003-08-19 |
| 6597876 | Image forming apparatus and cartridge detachably mountable thereto | Kazushige Sakurai | 2003-07-22 |
| 6594451 | Image forming apparatus, and use situation reporting system for reporting use situations of developer and other consumables stowed in image forming apparatus | Hiroshi Sasame, Hiroaki Ogata, Shinya Yamamoto | 2003-07-15 |
| 6594462 | Developing apparatus using toner with conductive particles | Yasuyuki Ishii | 2003-07-15 |
| 6591070 | Image forming apparatus and cartridge detachably mountable to same | Takeo Shoji, Atsuya Takahashi, Hideki Matsumoto | 2003-07-08 |
| 6542710 | Developing apparatus for preventing developer from attaching to developer electrifying member | Yasuyuki Ishii, Shinji Uehara | 2003-04-01 |
| 6522842 | Developing apparatus and image forming apparatus | Shinji Uehara, Yasuyuki Ishii | 2003-02-18 |
| 6493519 | Image forming apparatus having a plurality of image forming stations, and unit detachably mountable on the apparatus | Hiroshi Sasame, Hiroaki Ogata, Shinya Yamamoto | 2002-12-10 |
| 6314257 | Simultaneous developing/cleaning device | Yasuyuki Ishii, Shinji Uehara | 2001-11-06 |
| 6308038 | Developing apparatus | Yasuyuki Ishii | 2001-10-23 |