Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6822705 | Reflective display, light guide plate and method of manufacturing light guide plate | Kazuhito Shimoda, Junichi Ohsako, Takashi Oku | 2004-11-23 |
| 6721097 | Optical element, its manufacturing method and optical element manufacturing metal die | Nobuo Suematsu, Akira Koshimura | 2004-04-13 |