Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D460702 | Circuit tester | — | 2002-07-23 |
| D419467 | Clamp tester | Etsuo Shirai | 2000-01-25 |
| D412294 | Circuit tester | Masazo Murase | 1999-07-27 |
| 4564806 | Taut band instrument having accurate taut band positioning means | — | 1986-01-14 |