Issued Patents All Time
Showing 1–8 of 8 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, Tsuyoshi Hotta, Yuko Kuwabara, Masachika Watanabe | 2007-05-08 |
| 6795614 | Method of making phase mask for machining optical fiber and optical fiber having bragg diffraction grating produced using the phase mask for machining optical fiber | Masaaki Kurihara, Tetsuro Komukai, Masataka Nakazawa | 2004-09-21 |
| 6667819 | Reflection type diffuse hologram, hologram for reflection hologram color filters, etc., and reflection type display device using such holograms | Shingo Nishikawa, Kenji Ueda, Tsuyoshi Hotta, Yuko Kuwabara, Masachika Watanabe | 2003-12-23 |
| 6466714 | Method of producing phase mask for fabricating optical fiber and optical fiber with bragg's diffraction grating produced by using the phase mask | Masaaki Kurihara, Tetsuro Komukai, Masataka Nakazawa | 2002-10-15 |
| 6214495 | Phase mask for processing optical fibers and method of manufacturing the same | Masaaki Kurihara | 2001-04-10 |
| 6200711 | Phase mask for manufacturing diffraction grating, and method of manufacture | Masaaki Kurihara | 2001-03-13 |
| 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, Yuko Kuwabara, Hideaki Morita | 2000-03-07 |
| 5543228 | Molded relief hologram | Yukio Taniguchi, Tsuyoshi Hotta, Yuko Kuwabara, Hideaki Morita | 1996-08-06 |