Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6441941 | Light shutter device | Itaru Saito, Tomohiko Masuda, Tsukasa Yagi, Ken Matsubara, Yuji Kamoda | 2002-08-27 |
| 6347894 | Light shutter device | Tsukasa Yagi, Yuji Kamoda | 2002-02-19 |