Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847180 | Silver halide photographic material capable of being handled in a bright room during steps of photomechanical process | Ken-ichi Kuwabara, Toshiro Takahashi, Yoshio Inagaki, Shigeo Hirano | 1989-07-11 |