Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4998107 | Control method of multi-channel digital-to-analog converting circuit | — | 1991-03-05 |
| 4975689 | Operation display method and apparatus for variables of an oscilloscope | Norio Yamada | 1990-12-04 |