Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5638220 | Device for producing ring-shaped laser spot | Fumio Ohtomo, Hiroo Sugai, Yoshiyuki Enomoto | 1997-06-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5638220 | Device for producing ring-shaped laser spot | Fumio Ohtomo, Hiroo Sugai, Yoshiyuki Enomoto | 1997-06-10 |