Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5293198 | Image forming apparatus for controlling the dynamic range of an image | Katsuhiro Aoki, Takayuki Maruta | 1994-03-08 |
| 5270783 | Image forming equipment having improved toner sensing | Takashi Bisaiji, Kouji Hayashi, Takeyoshi Sekine, Takayuki Maruta, Norimitu Kikuchi +5 more | 1993-12-14 |
| 5237369 | Color image forming equipment responsive to changes in ambient conditions | Takayuki Maruta, Katsuhiro Aoki | 1993-08-17 |
| 5227842 | Electrophotographic image forming apparatus which controls developer bias based on image irregularity | Kouji Hayashi, Takashi Bisaiji, Norimitsu Kikuchi, Takeyoshi Sekine, Takayuki Maruta +4 more | 1993-07-13 |
| 5157440 | Toner density sensing device for image forming equipment | — | 1992-10-20 |
| 4901113 | Image-forming device | Shinichi Kamiyama, Hideo Yuh, Masayuki Takashima, Tadayuki Sekiya | 1990-02-13 |
| 4897693 | Magnetic particle carrying apparatus | — | 1990-01-30 |
| 4885223 | Method and apparatus for developing electrostatic latent image | Shigekazu Enoki, Shunji Katoh, Noriyuki Kimura | 1989-12-05 |
| 4875079 | Toner density control for multicolor electrophotographic copier | Takashi Bisaiji, Hideo Yoo | 1989-10-17 |
| 4855783 | Agitating roller and restricting member for a developing device | Masayuki Takashima | 1989-08-08 |
| 4814821 | Image-forming device | Shinichi Kamiyama, Hideo Yuh, Masayuki Takashima, Tadayuki Sekiya | 1989-03-21 |
| 4592653 | Dry process developing apparatus | Takashi Ikeda, Hiroyuki Akamatsu | 1986-06-03 |
| 4453493 | Toner recirculating and agitating device for dry process developing apparatus | Masumi Ikesue | 1984-06-12 |