Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7899369 | Powder conveying device and image forming apparatus having the same | — | 2011-03-01 |
| 7519318 | Electrophotolithographic image forming device and image developing method | Masahiko Itaya, Kyu-cheol Shin, Tsutomu Teraoka, Tsutomu Sasaki, Myung-kook Ahn | 2009-04-14 |
| 7489893 | Hybrid type developing apparatus and developing method | Tsutomu Teraoka, Masahiko Itaya, Kyu-cheol Shin, Tsutomu Sasaki, Myung-kook Ahn | 2009-02-10 |