Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8987638 | Engine driven welding machine | Toru Hiroi | 2015-03-24 |
| 8716626 | Shielded metal arc welding machine | Toru Hiroi | 2014-05-06 |
| 7015677 | Automatic voltage regulator with function for suppressing overshoot | — | 2006-03-21 |
| 6985821 | Apparatus for calculating an effective voltage | — | 2006-01-10 |