Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D354134 | Pincette for an ocular lens | — | 1995-01-03 |
| 5284348 | Apparatus for cutting ocular lens materials | Kyoichi Tanaka, Yasuyoshi Yamamoto | 1994-02-08 |
| 5127126 | Contact lens cleaning instrument | Yasuyoshi Yamamoto | 1992-07-07 |
| 4965904 | Contact lens cleaning device | Yasuyoshi Yamamoto, Yuzou Kaga | 1990-10-30 |