Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7973972 | Halftone dot formation method and apparatus, and image forming apparatus | Akira Ishii | 2011-07-05 |
| 7880932 | Halftone dot formation method and apparatus for reducing layer thickness of coloring material inside halftone dots, and image formation apparatus | Akira Ishii | 2011-02-01 |