Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6618343 | Optical information processor and optical element | Junichi Asada, Yuichi Takahashi, Seiji Nishiwaki, Kenji Nagashima, Kazuo Momoo +1 more | 2003-09-09 |
| 6594042 | Optical element, optical pickup, information recording and reproducing method, and polarizing hologram | Junichi Asada, Seiji Nishiwaki | 2003-07-15 |