Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6967070 | Electrophotographic toner and image forming method | Yasushige Nakamura, Toru Takahashi, Tsuneo Watanuki, Norio Sawatari, Seijiro Ishimaru | 2005-11-22 |
| 6767683 | Image forming toner, 2-component developer, image forming method and method for manufacturing image forming toner | Yasushige Nakamura, Seijirou Ishimaru | 2004-07-27 |
| 5635323 | Image forming method | Yasushige Nakamura, Norio Sawatari, Tsuneo Watanuki, Fumio Takei, Toru Takahashi | 1997-06-03 |