Issued Patents All Time
Showing 51–58 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683845 | Positively chargeable toner for nonmagnetic one-component developing method | Shin-ichi Sata, Masayuki Maruta | 1997-11-04 |
| 5637430 | Nonmagnetic one-component toner | Shin-ichi Sata, Yasuhiro Hidaka, Masayuki Maruta | 1997-06-10 |
| 5552098 | Method for fabrication of disc substrate | Junichiro Kudo | 1996-09-03 |
| 5532096 | Electrophotographic carrier and production process therefor | Masayuki Maruta | 1996-07-02 |
| 5495320 | Developer stirring device and developing device and image forming apparatus using the same | Takamasa Araki, Kazuyoshi Sakazawa | 1996-02-27 |
| 5427520 | Mold device for fabricating disc substrate | Junichiro Kudo | 1995-06-27 |
| 5326240 | Metal mold device for molding a disc substrate | Junichiro Kudo | 1994-07-05 |
| 5258255 | Electrostatic charge image developer composition | Masayoshi Nawa, Yoshihiro Fukushima | 1993-11-02 |