Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4632968 | Contact lens and process for preparation thereof | Mitsuru Yokota, Tsutomu Goshima | 1986-12-30 |
| 4548983 | Method of manufacturing shaped article of hydrogel | Mitsuru Yokota, Tsutomu Goshima, Hideki Kenjo, Kazushige Komaki | 1985-10-22 |