Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8948638 | Image forming apparatus | Yasuyuki Ishii, Hideki Kosugi, Tetsuro Hirota, Masaaki Yamada, Yoshiko Ogawa +4 more | 2015-02-03 |
| 8594540 | Development device, process cartridge incorporating same, and image forming apparatus incorporating same | Tetsuro Hirota, Hideki Kosugi, Yoshiko Ogawa, Atsushi Kurokawa, Hideyasu Seki +1 more | 2013-11-26 |
| 8588635 | Development device, process cartridge incorporating same, and image forming apparatus incorporating same | Yoshiko Ogawa, Yasuyuki Ishii, Hideki Kosugi, Masaaki Yamada, Atsushi Kurokawa | 2013-11-19 |
| 8433211 | Developing device, process cartridge, and image forming apparatus | Masanori Horike, Tetsuro Hirota, Atsushi Kurokawa, Hideki Kosugi, Masaaki Yamada +1 more | 2013-04-30 |