Issued Patents All Time
Showing 51–70 of 70 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6823153 | DEVELOPING DEVICE AND PROCESS CARTRIDGE COMPRISING FIRST AND SECOND SEALING MEMBERS AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS COMPRISING A DEVELOPING DEVICE COMPRISING FIRST AND SECOND SEALING MEMBERS | Takahito Ueno, Nobuharu Hoshi | 2004-11-23 |
| 6714752 | Process cartridge, load producing member and electrophotographic image forming apparatus | Takahito Ueno, Atsushi Numagami, Shigeru Hoashi | 2004-03-30 |
| D478614 | Image forming apparatus | Atsushi Numagami, Takahito Ueno | 2003-08-19 |
| 6608980 | Electrophotographic image forming apparatus to which a process cartridge is detachably mountable and process cartridge comprising cartridge drum positioning portion or recess | Hisayoshi Kojima, Atsushi Numagami, Takahito Ueno | 2003-08-19 |
| 6587660 | Developing apparatus | Takahito Ueno, Hisayoshi Kojima, Tadashi Horikawa | 2003-07-01 |
| 6577831 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS TO WHICH A PROCESS CARTRIDGE IS DETACHABLY MOUNTABLE AND PROCESS CARTRIDGE HAVING A SUPPORTING MEMBER FOR ROTATABLY SUPPORTING A DEVELOPING ROLLER AT A POSITION AWAY FROM THE CENTER OF ROTATION THEREOF | Hisayoshi Kojima, Atsushi Numagami, Nobuharu Hoshi | 2003-06-10 |
| 6463233 | Process cartridge having first and second cartridge guiding portions and an electrophotographic image forming apparatus to which the process cartridge is attached | Hisayoshi Kojima, Hironobu Isobe, Atsushi Numagami, Nobuharu Hoshi | 2002-10-08 |
| 6463242 | Developing device, process cartridge and electrophotographic image forming apparatus | Hisayoshi Kojima, Atsushi Numagami, Takahito Ueno | 2002-10-08 |
| 6442359 | PROCESS CARTRIDGE DETACHABLY MOUNTABLE TO A MAIN ASSEMBLY OF AN ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS COMPRISING MEANS FOR ROTATING A CHARGING UNIT IF FIRST AND SECOND ROTATIONAL DIRECTIONS AND THE APPARATUS MOUNTING SUCH A PROCESS CARTRIDGE | Atsushi Numagami, Hisayoshi Kojima, Hironobu Isobe, Nobuharu Hoshi | 2002-08-27 |
| 6404996 | Electrophotographic apparatus having plural image forming modes, and a process cartridge applied to such electrophotographic apparatus | Tomonori Mori, Hisayoshi Kojima, Kazufumi Muto | 2002-06-11 |
| 6389250 | Developing device, process cartridge and electrophotographic image forming apparatus | Atsushi Numagami, Hisayoshi Kojima | 2002-05-14 |
| 6385416 | Space securing member, developing device, charging device and process cartridge | Tadashi Horikawa, Atsushi Numagami, Takahito Ueno | 2002-05-07 |
| 6314266 | Cleaning apparatus equipped with brush roller, process cartridge, and image forming apparatus | Hisayoshi Kojima, Tomonori Mori | 2001-11-06 |
| 6298217 | Cleaning apparatus and process cartridge | Tomonori Mori | 2001-10-02 |
| 6289189 | Process cartridge and electrophotographic image forming apparatus having a main assembly in which a cartridge coupling member is engageable with a main assembly coupling member to receive a driving force | Atsushi Numagami, Satoshi Sugita, Hisayoshi Kojima | 2001-09-11 |
| 6285851 | Cleaning apparatus which includes cleaning member, supporting portion and reinforcing member | Hisayoshi Kojima, Tomonori Mori | 2001-09-04 |
| 6266503 | Method for attaching electrostatic photosensitive drum method for replacing electrophotographic photosensitive drum and process cartridge | Hisayoshi Kojima, Tomonori Mori | 2001-07-24 |
| 6178301 | Cleaning apparatus for cleaning an image carrier, process cartridge having a cleaning apparatus for removing remaining developer on an image carrier, and image forming apparatus having a cleaning member for removing remaining developer on an image carrier | Hisayoshi Kojima, Tomonori Mori | 2001-01-23 |
| 6157792 | Electrophotographic apparatus having plural image forming modes, and a process cartridge applied to such electrophotographic apparatus | Tomonori Mori, Hisayoshi Kojima, Kazufumi Muto | 2000-12-05 |
| 6131011 | Method of adjusting the mounting of cleaning member, process cartridge and image forming apparatus | Hisayoshi Kojima, Tomonori Mori | 2000-10-10 |