Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6829449 | Image forming apparatus with transfer bias inverting function | Hiroyoshi Matsumoto, Teruaki Mitsuya, Hisao Okada, Natsuki Kuribayashi, Masayoshi Ishii +1 more | 2004-12-07 |
| 6813462 | Electro-photographic developing unit | Teruaki Mitsuya, Masayoshi Ishii, Hisao Okada, Hiroyoshi Matsumoto, Keisuke Kubota +1 more | 2004-11-02 |
| 6783909 | Electrostatic image developing toner and image forming method | Ryuuichi Shimizu, Shigenori Yaguchi, Junji Kobayashi, Tadahiro Kaneko, Nobuyoshi Hoshi | 2004-08-31 |
| 6696210 | Electrostatic charge developing toner and image forming method using the same | Shigenori Yaguchi, Ryuuichi Shimizu, Junji Kobayashi, Nobuyoshi Hoshi | 2004-02-24 |