Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6790502 | Optically functional element and production method and application therefor | Hiroki Yamamoto, Takashi Naito, Ken Takahashi, Motoyasu Terao, Toshimichi Shintani +5 more | 2004-09-14 |