Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8477234 | Brightness sensing system and illumination system using the same | Shinji Matsuda, Tosikazu Kawasima | 2013-07-02 |
| 8446110 | Illumination system | Yuichi Ejiri, Tosikazu Kawasima | 2013-05-21 |