Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859579 | Silver halide photographic material | Shigeo Hirano, Tetsuro Kojima, Noriyuki Inoue, Tatsuo Heki | 1989-08-22 |
| D301849 | Four wheel vehicle | Yasuhiro Oba, Akira Watanabe | 1989-06-27 |
| D299324 | Four wheeled vehicle | Yasuhiro Oba, Akira Watanabe | 1989-01-10 |