Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4743667 | Contact lens material | Yutaka Mizutani, Tatsuo Harata | 1988-05-10 |
| 4602074 | Contact lens material | Yutaka Mizutani, Tatsuo Harata | 1986-07-22 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4743667 | Contact lens material | Yutaka Mizutani, Tatsuo Harata | 1988-05-10 |
| 4602074 | Contact lens material | Yutaka Mizutani, Tatsuo Harata | 1986-07-22 |