Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7146518 | Filter circuit with automatic adjustment of cutoff frequency via average signal values | — | 2006-12-05 |
| 7006423 | Mark detecting circuit for an optical disk | Koyu Yamanoi | 2006-02-28 |