Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6876828 | Image formation apparatus and tone quality improving method of image formation apparatus | Koichi Tsunoda | 2005-04-05 |
| 6862417 | Image formation apparatus, sound quality evaluation method, method of manufacturing image formation apparatus, and method of remodeling image formation apparatus | Koichi Tsunoda | 2005-03-01 |