Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877321 | Slit lamp microscope | Tadashi Ichihashi | 1989-10-31 |
| 4854693 | Ophthalmic disease detection apparatus | Tadashi Ichihashi, Koichiro Kakizawa | 1989-08-08 |
| 4838683 | Ophthalmic measuring method and apparatus | Tadashi Ichihashi | 1989-06-13 |
| 4830494 | Method and apparatus for measuring particles in a fluid | Muneharu Ishikawa, Kouichi Akiyama, Eiichi Ito, Akihiro Fujita | 1989-05-16 |