Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4992740 | Apparatus which uses a simulated inductor in the measurement of an electrical parameter of a device under test | — | 1991-02-12 |
| 4935692 | Vector ammeter having digital signal processing unit | — | 1990-06-19 |
| 4888701 | Apparatus for measuring vector voltage ratio | Hideshi Tanaka | 1989-12-19 |
| 4820969 | Polarity compensated apparatus for measuring the impedance of a polar device | Takanori Yonekura | 1989-04-11 |
| 4661791 | Reed switch with high insulation | Akinori Maeda | 1987-04-28 |