Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6627681 | Method of decreasing unreacted monomer in vinyl polymer and a toner resin in which unreacted monomer has been decreased | Masamitsu Mogi, Masao Watanabe, Yutaka Kukimoto | 2003-09-30 |
| 5612161 | Negatively chargable toner for electrophotography | Masao Watanabe, Kozo Suzuki | 1997-03-18 |
| 5317060 | Process for producing composite resin for toner | Yutaka Kukimoto, Kozo Suzuki, Yoshihiko Koshiyama | 1994-05-31 |
| 4652511 | Process for producing resin composition useful as electrophotograhic toner | Akira Otsu, Kenji Sano, Katuyuki Takano | 1987-03-24 |