Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5652089 | Silver halide photographic emulsion | — | 1997-07-29 |
| 5641620 | Silver halide emulsion, process for preparing the same, and silver halide photographic materials containing the same | Seiji Yamashita, Takayoshi Oyamada | 1997-06-24 |