Issued Patents All Time
Showing 51–69 of 69 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5420614 | Digital image forming apparatus | Kazuyuki Fukui, Yoshinobu Hada | 1995-05-30 |
| 5404203 | Image forming apparatus including image forming condition correction arrangement and method for correcting image forming condition in image forming apparatus | Takeru Kinoshita | 1995-04-04 |
| 5343235 | Apparatus and method for forming an image including correction for laser beam size | Kazuyuki Fukui | 1994-08-30 |
| 5280325 | Image formation method and apparatus for forming a plurality of images in different positions on a recording sheet | Kazunobu Maekawa | 1994-01-18 |
| 5250959 | Electrophotographic image forming apparatus and method | Kazuyuki Fukui | 1993-10-05 |
| 5216469 | Apparatus for controlling toner density in a developing device of an electrophotographic or electrostatic image forming apparatus | — | 1993-06-01 |
| 5212560 | Electrophotographic image forming apparatus comprising means for automatically adjusting image reproduction density | Yoshihiro Hattori, Kazuyuki Fukui, Yoshikazu Naito | 1993-05-18 |
| 5206686 | Apparatus for forming an image with use of electrophotographic process including gradation correction | Kazuyuki Fukui, Masaaki Nishiyama | 1993-04-27 |
| 5189441 | Image forming apparatus having density control | Kazuyuki Fukui | 1993-02-23 |
| 5182603 | Separation charger control for electro-photographic apparatus | — | 1993-01-26 |
| 5157507 | Image forming apparatus that discriminates an image portion and a character portion | — | 1992-10-20 |
| 5146273 | Method and apparatus for preventing erroneous image density detection in an image forming apparatus | — | 1992-09-08 |
| 5138398 | Support structure holding a plurality of developing devices used in a multi-color image forming apparatus | — | 1992-08-11 |
| 5124751 | Image forming apparatus with a toner density control device | Kazuyuki Fukui | 1992-06-23 |
| 5014095 | Color image forming apparatus | — | 1991-05-07 |
| 4958191 | Developing device | Noboyuki Kawai, Takeru Kinoshita | 1990-09-18 |
| 4939548 | Image forming apparatus | Nobuyuki Kawai | 1990-07-03 |
| 4928146 | Developing device | — | 1990-05-22 |
| 4866481 | Image forming apparatus having a plurality of developers and a detection and control arrangement for detecting the density of a formed image and a controller for controlling the density of the image | Kenji Tabuchi | 1989-09-12 |