Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6808857 | Negative-working photosensitive composition and negative-working photosensitive lithographic printing plate | Eiji Hayakawa | 2004-10-26 |
| 6720134 | Silver halide photographic emulsion and silver halide photographic lightsensitive material using the same | Toshihiro Nishikawa, Nobuyuki Haraguchi, Hideo Ikeda, Takayoshi Mori | 2004-04-13 |