Issued Patents 2011
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8050168 | Optical head device, optical information device, computer, disc player, car navigation system, optical disc recorder, and vehicle | Yoshiaki Komma, Fumitomo Yamasaki | 2011-11-01 |
| 7978568 | Optical head, diffraction device, objective lens, and optical disc apparatus | Fumitomo Yamasaki, Yoshiaki Komma | 2011-07-12 |
| 7952979 | Coupling lens, optical head and optical disc device | Fumitomo Yamasaki, Sadao Mizuno, Hideki Aikoh | 2011-05-31 |
| 7924686 | Objective lens and optical pickup device | Takahiro Tomita, Michihiro Yamagata, Yoshiaki Komma | 2011-04-12 |
| 7920455 | Complex optical element and optical pickup | Jun Murata, Yasuhiro Tanaka, Michihiro Yamagata | 2011-04-05 |