Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8466387 | Laser processing method | Katsutoshi Hamada, Takayuki Okada | 2013-06-18 |
| 8420200 | Preform for optical element and optical element | Futoshi Ishizaki, Kenji Sugizaki | 2013-04-16 |
| 8003186 | Preform for optical element and optical element | Futoshi Ishizaki, Kenji Sugizaki | 2011-08-23 |