Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6968096 | Diffraction device using photonic crystal | Shigeo Kittaka, Keiji Tsunetomo, Vladimir Serikov | 2005-11-22 |
| 6914715 | Optical element | Tatsuhiro Nakazawa, Shigeo Kittaka, Keiji Tsunetomo, Masatoshi Nara | 2005-07-05 |