Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873181 | Silver halide photographic material | Nobuaki Miyasaka | 1989-10-10 |
| 4859576 | Silver halide photographic material comprising a protective layer containing a polyoxyethylene surface active agent | Nobuaki Miyasaka, Shigeki Yokoyama, Takashi Naoi, Masaki Satake | 1989-08-22 |
| 4853323 | Silver halide emulsion | Hideo Ikeda, Nobuaki Miyasaka | 1989-08-01 |
| 4818669 | Silver halide emulsion | Hideo Ikeda | 1989-04-04 |