Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8019239 | Device and method for detecting life of organic photoreceptor and image forming apparatus | Masayoshi Nakayama, Shinichi Akatsu | 2011-09-13 |
| 7925174 | Image forming apparatus | Masayoshi Nakayama, Shinichi Akatsu, Takuma Higa | 2011-04-12 |