Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7451008 | Management method and system for device requiring maintenance | — | 2008-11-11 |
| 7336143 | Variable delay line using variable reactance devices to provide reflected delay signals | Itsuaki Katsumata, Masahiko Yokoyama | 2008-02-26 |