Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5694197 | Corneal shape measuring apparatus | Hisashi Tsukada, Tsutomu Sato, Minoru Kamiya, Takeyuki Kato | 1997-12-02 |
| 5387951 | Intraocular length measuring instrument capable of avoiding errors in measurement caused by the movement of a subject's eye | — | 1995-02-07 |
| 5141302 | Intraocular length measuring instrument | Akihiro Arai, Akihiko Sekine, Isao Minegishi, Fumio Ohtomo | 1992-08-25 |