Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7554752 | Lighting equipment | Satoshi Tamaoki, Hirao Ohta | 2009-06-30 |
| 7283313 | Bulk-shaped lens, light-emitting unit, and lighting equipment | Satoshi Tamaoki, Hirao Ohta | 2007-10-16 |
| 6961190 | Bulk lens, light emitting body, lighting device and optical information system | Satoshi Tamaoki, Hirao Ohta | 2005-11-01 |