Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6836347 | Viewing optical system and image pickup optical system and apparatus using the same | Takahiro Amanai, Tetsuhide Takeyama | 2004-12-28 |
| 6818270 | Hologram laminate and hologram label | Miwa Ishimoto, Hiroyuki Ohtaki, Kenji Ueda | 2004-11-16 |
| 6687029 | Viewing optical system and image pickup optical system and apparatus using the same | Takahiro Amanai, Tetsuhide Takeyama | 2004-02-03 |
| 6687031 | Holographic display element and method of making the same | Daijiro Kodama | 2004-02-03 |