Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5262264 | Combination of color toners for developing electrostatic latent image | Seiichi Shimizu, Masahiro Yoshida, Noboru Nakaibayashi, Shinji Amaya | 1993-11-16 |
| 5017450 | Color toner composition for electrostatic developer | Shinji Amaya, Seiichi Shimizu, Toshiro Kogawara | 1991-05-21 |
| 4931370 | Color toner composition for developing electrostatic images | Shinji Amaya, Kinji Shinzo, Toshiro Kogawara, Syuuichi Yamazaki, Seiichi Shimizu +1 more | 1990-06-05 |