Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6653040 | Electrophotographic carrier, developer using the same, and developing method | Toshiro Kogawara, Takeshi Isonaka, Shinji Amaya | 2003-11-25 |
| 6534229 | Developer for electrostatic image development | Katsuyuki Ogura, Masanobu Nakamura, Toshiro Kogawara, Hideki Gambayashi | 2003-03-18 |