Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6352343 | Gas permeable hard contact lens and method of producing it | Tohru Shirafuji, Hideo Suda, Teruhisa Shimizu, Yuichi Yokoyama | 2002-03-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6352343 | Gas permeable hard contact lens and method of producing it | Tohru Shirafuji, Hideo Suda, Teruhisa Shimizu, Yuichi Yokoyama | 2002-03-05 |