Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8284504 | Lens fixing device and optical pickup device | Yasuyuki Kano, Kenji Asano | 2012-10-09 |
| 7551538 | Optical recording apparatus and optical head | Kevin Curtis, Aaron Wegner | 2009-06-23 |
| 6621772 | Record medium and reproducing apparatus of the same for detecting an offset correction | Kenji Asano, Noboru Mamiya, Yoshiharu Uchihara, Satoshi Sumi, Kenji Nakao +8 more | 2003-09-16 |
| 6025866 | Superresolution optical pickup apparatus | Yoichi Tsuchiya, Yasuyuki Kanou, Seiji Kajiyama, Koichi Tada, Katsutoshi Hibino | 2000-02-15 |
| 5914929 | Optical disk recording/playback device with means to recognize, read from and record to multiple types of optical disk types | Seizo Kato, Kenji Torazawa, Kenji Nakao | 1999-06-22 |