Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6940650 | Diffraction optical element and transfer mold therefor | Kenichi Nakama, Yukinari Sekiguchi, Naoko Hikichi | 2005-09-06 |
| 6852420 | Optical device, mold, and method of producing the same | Hiroaki Yamamoto, Masahiro Hori, Koichiro Nakamura, Kenichi Nakama | 2005-02-08 |
| 6839173 | Reflection type diffraction grating | Shinji Kawamoto, Terufusa Kunisada, Kenichi Nakama | 2005-01-04 |