Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810085 | Corneal configuration measuring apparatus | Yasufumi Fukuma, Akihiro Arai | 1989-03-07 |
| 4796989 | Opthalmological measuring apparatus | Yasufumi Fukuma, Akihiro Arai | 1989-01-10 |