Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878079 | Focus detecting device | Masataka Hamada, Toshihiko Karasaki, Toru Matsui | 1989-10-31 |
| 4864341 | Mount arrangement and interchangeable lens unit for photographic camera | Tsuneyo Metabi, Masatake Niwa | 1989-09-05 |
| 4847186 | Silver halide photographic light-sensitive materials | Yasuo Mukunoki | 1989-07-11 |