Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5360709 | Silver halide photographic material containing a DIR compound | Atsuhiro Ohkawa, Keiji Mihayashi | 1994-11-01 |
| 5350666 | Silver halide photographic materials | Atsuhiro Ohkawa, Keiji Mihayashi | 1994-09-27 |
| 5312726 | Silver halide color photographic material | Keiji Mihayashi, Seiji Ichijima, Toshio Kawagishi, Naoki Saito | 1994-05-17 |
| 5286620 | Silver halide color photographic material | Atsuhiro Ohkawa, Keiji Mihayashi | 1994-02-15 |