Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5881344 | Image forming apparatus and charging device thereof | Junji Kurokawa, Kazuo Nojima, Masako Chiba | 1999-03-09 |
| 5786091 | Charge roller for an image forming apparatus | Junji Kurokawa, Kazuo Nojima, Masako Chiba | 1998-07-28 |
| 5689770 | Image forming apparatus which maintains a temperature of a charge roller | Junji Kurokawa, Kazuo Nojima, Masako Chiba | 1997-11-18 |
| 5619311 | Roller charging apparatus and image forming apparatus using the same | Junji Kurokawa, Norimasa Soumiya | 1997-04-08 |
| 5479243 | Image forming apparatus and charging device thereof | Junji Kurokawa, Kazuo Nojima, Masako Chiba | 1995-12-26 |
| 5057873 | Method of cleaning a transfer drum of an electrophotographic apparatus | Yuji Sawai | 1991-10-15 |
| 4835582 | Device for driving a photoconductive element of an electrophotographic copier etc. | Nobuo Kasahara | 1989-05-30 |