Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4852985 | Illuminating device for microscopes | Tadafumi Fujihara, Yoshihiro Shimada, Katsuo Tsukamoto | 1989-08-01 |
| 4834516 | Noninverting photo-microscope with variable power lenses | Kazuo Kajitani, Makoto Shigehara, Kazuhiko Osa, Eisuke Arinobe, Hideto Yamashita | 1989-05-30 |
| 4812039 | Schlieren optical device | Yoshihiro Shimada, Tadafumi Fujihara, Katsuo Tsukamoto | 1989-03-14 |