Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6359949 | Demodulation circuit, a decode circuit and a digital PLL circuit for an optical disc apparatus | Isao Okada | 2002-03-19 |
| 6175542 | Demodulation circuit, a decode circuit and a digital PLL circuit for an optical disc apparatus | Isao Okada | 2001-01-16 |
| 5946279 | Servo circuit, digital PLL circuit and optical disk device | Isao Okada | 1999-08-31 |