Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| H711 | Exposure device | Kiyoshi Harada, Kazuo Takahashi | 1989-11-07 |
| 4847187 | Light-sensitive silver halide photographic material | Kouzi Ono | 1989-07-11 |
| 4840888 | Light-sensitive silver halide photographic material | Hiroaki Shiozawa, Kakujulo Fukuouji, Kouji Ono | 1989-06-20 |