Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6747922 | Track-jump controlling apparatus and method | — | 2004-06-08 |
| 6487153 | System for discriminating optical discs | Akira Kawakami | 2002-11-26 |
| 6392966 | Feed velocity control apparatus for controlling the movement of information reading point of disc player | — | 2002-05-21 |
| 6341113 | Servo device for recording medium player | — | 2002-01-22 |
| 6327234 | System for discriminating optical discs | Akira Kawakami | 2001-12-04 |
| 6236032 | Tracking pull-in circuit for reducing effect by a defect in a tracking servo loop | — | 2001-05-22 |
| 6172953 | Defect detector and information reproduction apparatus employing the same | — | 2001-01-09 |
| 6084836 | Defect detection apparatus for detecting defects on a recording medium and reading apparatus incorporating the defect detection system | — | 2000-07-04 |
| 5966355 | Focus servo pull-in apparatus for use in a compatible disk player | — | 1999-10-12 |
| 5909419 | Disk discrimination apparatus for an optical disk reproducing apparatus | — | 1999-06-01 |
| 4847816 | Audio information reproducing apparatus | Yasunari Kawahara | 1989-07-11 |