Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6727053 | Dye-forming coupler, silver halide photographic light-sensitive material and azomethine dye compound | Kiyoshi Takeuchi, Shigeki Uehira, Jun Ogasawara, Yasuhiro Shimada, Seiji Ichijima +6 more | 2004-04-27 |
| 6677110 | Dye-forming coupler, silver halide photographic light-sensitive material, and azomethine dye compound | Kiyoshi Takeuchi, Shigeki Uehira | 2004-01-13 |