Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821697 | Toner for electrostatic image development and method of producing the same | Hitoshi Takayanagi, Takashi Ito, Kenichi Hirabayashi | 2004-11-23 |
| 6248491 | Toner for electrostatic image development | Hitoshi Takayanagi, Minoru Nomura, Takashi Ito, Kenichi Hirabayashi, Yukiko Soma +2 more | 2001-06-19 |
| 6017670 | Electrophotographic toner and process for the preparation thereof | Shoji Okuno, Yukiko Soma, Hitoshi Takayanagi, Minoru Nomura, Takashi Ito +1 more | 2000-01-25 |