Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848899 | Fixation sight apparatus for ophthalmologic instrument | Susumu Takahashi | 1989-07-18 |
| 4834527 | Working distance alignment optical system for ophthalmological instrument | — | 1989-05-30 |
| 4817620 | Noncontact type tonometer | Kenjiro Katsuragi, Yoshitaka Torii | 1989-04-04 |