Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7215451 | Reflection type diffuse hologram, hologram for reflection hologram color filters, etc., and reflection type display device using such holograms | Shingo Nishikawa, Kenji Ueda, Toshikazu Segawa, Tsuyoshi Hotta, Masachika Watanabe | 2007-05-08 |
| 6667819 | Reflection type diffuse hologram, hologram for reflection hologram color filters, etc., and reflection type display device using such holograms | Shingo Nishikawa, Kenji Ueda, Toshikazu Segawa, Tsuyoshi Hotta, Masachika Watanabe | 2003-12-23 |
| 6033810 | Molded articles using glass as substrate, such as holographic optical element, optical reflector and encoder, and method of producing these articles | Yukio Taniguchi, Tsuyoshi Hotta, Hideaki Morita, Toshikazu Segawa | 2000-03-07 |
| 5543228 | Molded relief hologram | Yukio Taniguchi, Tsuyoshi Hotta, Hideaki Morita, Toshikazu Segawa | 1996-08-06 |
| 5504593 | Continuous and uniform hologram recording method and uniformly recorded hologram | Tsuyoshi Hotta, Osamu Takekoh | 1996-04-02 |