Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6829080 | Optical waveguide device and light source and optical apparatus using the same | Akihiro Morikawa, Yasuo Kitaoka, Kiminori Mizuuchi, Kazuhisa Yamamoto | 2004-12-07 |
| 6819646 | Optical pickup, optical information recording/reproducing apparatus using the same, and phase variable wave plate used in the pickup and the apparatus | Yasuo Kitaoka, Katsuhiko Kumagawa, Kazuhisa Yamamoto, Hidenori Wada | 2004-11-16 |
| 6785457 | Optical waveguide device and coherent light source and optical apparatus using the same | Kiminori Mizuuchi, Kazuhisa Yamamoto, Yasuo Kitaoka | 2004-08-31 |
| 6744707 | Optical head device, inclination detection apparatus using the same, and optical information processing apparatus using the same | Kousei Sano, Shin-ichi Kadowaki, Hiroaki Yamamoto, Seiji Nishino | 2004-06-01 |
| 6738326 | Apparatus and method for reproducing information from two types of optical disks having discrimination marks formed along tracks thereof | Hiromichi Ishibashi | 2004-05-18 |