Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5696742 | Optical disk device for reproducing address information from wobbled groove | Nobuo Ogata, Yoshihiro Sekimoto, Kunio Kojima, Hideaki Sato | 1997-12-09 |
| 5673247 | Optical pickup having two objective lenses | Yoshihiro Sekimoto, Nobuo Ogata, Tomoyuki Miyake | 1997-09-30 |
| 5659528 | Information recording-reproduction method | Kunio Kojima, Yoshihiro Sekimoto, Tomoyuki Miyake, Nobuo Ogata, Toshiharu Inui | 1997-08-19 |