Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6618343 | Optical information processor and optical element | Youichi Saitoh, Junichi Asada, Yuichi Takahashi, Kenji Nagashima, Kazuo Momoo +1 more | 2003-09-09 |
| 6594042 | Optical element, optical pickup, information recording and reproducing method, and polarizing hologram | Junichi Asada, Youichi Saitoh | 2003-07-15 |
| 6567372 | Optical disk and optical disk apparatus with tracks and grooves | Kouichi Takamine, Shin-ichi Yamada, Takashi Ishida, Atsushi Nakamura | 2003-05-20 |
| 6504660 | Prism and manufacturing method thereof, optical beam shaping apparatus and optical head device utilizing such prism, and optical beam shaping method | Tetsuo Saimi | 2003-01-07 |