Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6229970 | Image forming apparatus with an amount of use control feature and cartridge removably mounted on the apparatus | Koichi Suwa, Kazumi Yamauchi | 2001-05-08 |
| 6219510 | Charging member employing layers formed with aqueous resin | Atsutoshi Ando, Kouichi Suwa, Satoshi Sunahara | 2001-04-17 |
| 5995785 | Image forming apparatus having a mechanism for preventing stripping off of a lubricant from a cleaning blade | Junichi Kato, Koichi Suwa, Satoru Inami, Jun Suzuki, Atsutoshi Ando | 1999-11-30 |
| 5666606 | Image forming apparatus comprising contact type charging member | Keiji Okano, Takahiro Inoue, Kazushige Sakurai, Kouichi Suwa, Masaki Ojima +3 more | 1997-09-09 |
| 5646718 | Cleaning blade for use in electrophotography, process cartridge and image forming apparatus | Koichi Suwa, Junichi Kato, Satoru Inami, Jun Suzuki, Atsutoshi Ando +1 more | 1997-07-08 |