Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6061144 | Color image forming apparatus having function for correcting image density when image development system is deteriorated | — | 2000-05-09 |
| 5825398 | Image forming apparatus using a synchronized transfer medium driver | Hideya Furuta, Yoshihiro Sakai, Kazushige Taguchi | 1998-10-20 |
| 5631691 | Image forming apparatus | Hideya Furuta, Yoshihiro Sakai, Kazushige Taguchi | 1997-05-20 |
| 5160969 | Image forming apparatus having a separate black developer stored for a color image | Kenichi Mizuma, Hideya Furuta, Nobuo Kasahara, Noriyuki Kimura, Shinju Nagatsuna +6 more | 1992-11-03 |
| 5121170 | Device for transporting sheet members using an alternating voltage | Kazunori Bannai, Noriyuki Kimura, Hideya Furuta, Kenichi Mizuma, Katsuo Sakai +2 more | 1992-06-09 |
| 4987428 | Color image forming apparatus | Kazunori Bannai, Yutaka Koizumi | 1991-01-22 |
| 4933727 | Color recording apparatus | Kenichi Mizuma, Yutaka Koizumi, Hideya Furuta, Katsuo Sakai, Yoshihiro Sakai +3 more | 1990-06-12 |
| 4796050 | Mechanism for driving photosensitive drums | Hideya Furuta, Yoshihiro Sakai, Fumitaka Fujieda | 1989-01-03 |
| 4746950 | Color copier | Hideya Furuta, Yutaka Koizumi, Yoshihiro Sakai | 1988-05-24 |
| 4690542 | Color copying apparatus | Hideya Furuta, Yutaka Koizumi, Yoshihiro Sakai | 1987-09-01 |
| 4664501 | Method of and apparatus for producing duplicates in color | Yutaka Koizumi, Hideya Furuta, Yoshihiro Sakai, Tsukasa Adachi, Itsuo Ikeda +1 more | 1987-05-12 |
| 4662739 | Method of controlling copying machine operation | Yoshihiro Sakai, Yutaka Koizumi, Hideya Furuta | 1987-05-05 |