Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6621606 | Optical system and device using the same | Tetsuhide Takeyama, Yasuyuki Ohyagi | 2003-09-16 |
| 6529297 | Color hologram recording medium and process for fabricating the same | — | 2003-03-04 |