Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6986765 | Corneal surgery apparatus | Toshifumi Sumiya, Hidenori Kanda | 2006-01-17 |
| 6491687 | Corneal Surgery apparatus | Toshifumi Sumiya, Hidenori Kanda | 2002-12-10 |
| 6159202 | Corneal surgery apparatus | Toshifumi Sumiya, Hidenori Kanda | 2000-12-12 |
| 6030376 | Corneal surgical apparatus | Toshifumi Sumiya, Hirohiko Hanai | 2000-02-29 |