Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6476942 | Process for producing original hologram film | Masachika Watanabe, Hiroyuki Otaki | 2002-11-05 |
| 6366371 | Transmissively viewable reflection hologram | Tsuyoshi Hotta | 2002-04-02 |