Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6744478 | Heads-up display system with optical rotation layers | Kenji Hosaki | 2004-06-01 |
| 6673462 | Frequency selective plate and method for producing same | Hiroshi Nakashima, Masaaki Yonekura, Hideo Omoto | 2004-01-06 |