Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9023465 | Electroconductive member, process cartridge and electrophotographic image forming apparatus | Satoru Yamada, Seiji Tsuru, Kazuhiro Yamauchi, Norifumi Muranaka | 2015-05-05 |
| 8449975 | Electroconductive member, process cartridge and electrophotographic apparatus | Satoru Yamada, Seiji Tsuru, Kazuhiro Yamauchi, Norifumi Muranaka | 2013-05-28 |
| 8298670 | Electro-conductive member for electrophotography, process cartridge, and electrophotographic apparatus | Norifumi Muranaka, Satoru Yamada, Seiji Tsuru, Kazuhiro Yamauchi | 2012-10-30 |