Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6800589 | Image-forming material and image formation method | Naotaka Wachi, Mitsuru Yamamoto, Akira Hatakeyama | 2004-10-05 |
| 6758932 | Multicolor image forming material and method for forming multicolor image | Mitsuru Yamamoto, Akihiro Shimomura, Akira Hatakeyama | 2004-07-06 |