Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863843 | Silver halide photographic emulsion containing predominantly silver bromide | Masao Okushima, Susumu Baba, Tokitsugu Houjo | 1989-09-05 |
| 4818676 | Silver halide photographic emulsion | Susumu Baba, Eigi Matsubara, Akira Tanaka | 1989-04-04 |