Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885732 | Optical pickup apparatus for detecting and correcting focusing and tracking errors in detected recorded signals | Hiroshi Nishihara, Toshiaki Suhara | 1989-12-05 |
| 4868803 | Magneto-optic pickup head including tracking and focusing error correction | Toshiaki Suhara, Hiroshi Nishihara | 1989-09-19 |
| 4833561 | Pickup apparatus for magneto-optical recording medium | Hiroshi Nishihara, Toshiaki Suhara | 1989-05-23 |
| 4830448 | Light modulator and wave guide device | Yoji Okazaki, Kozi Kamiyama | 1989-05-16 |
| 4816679 | Radiation image read-out apparatus | Kazuhiro Kawajiri, Nobuharu Nozaki, Yuichi Hosoi, Kenji Takahashi | 1989-03-28 |
| 4797867 | Pick-up head for optical information storage disk | Kozi Kamiyama | 1989-01-10 |