Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818670 | Silver halide photographic light-sensitive materials containing compound capable of splitting of diffusible development inhibitor or precursor and silver halide grain having internal fog nucleus | Hiroshi Shimazaki | 1989-04-04 |
| 4798775 | Process for producing silver halide photographic emulsion | Shinya Shimura | 1989-01-17 |