Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8040578 | Image reading apparatus and image forming apparatus | Kazuharu Sonetaka | 2011-10-18 |
| 5722002 | Latent electrostatic image developing device having a toner concentration detector | Shinji Kikuta, Tsutomu Nagata, Mitsuhiro Kashihara, Akihiko Ichiba, Hiroshi Kubota | 1998-02-24 |
| 5182182 | Electrophotographic image-forming method | Masatoshi Uehara, Yumiko Sano | 1993-01-26 |
| 5132199 | Electrophotographic image-forming method | Uehara Masatoshi, Yumiko Sano | 1992-07-21 |
| 5045879 | Image forming apparatus using photosensitive toner | Kazushige Inoue, Masatoshi Uehara, Yumiko Sano | 1991-09-03 |
| 4950570 | Image-forming process using photosensitive toner | Yumiko Sano, Yosinobu Umetani | 1990-08-21 |