Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4623814 | Piezoelectric high-voltage generating device | Tooru Ninomiya | 1986-11-18 |
| 4315180 | High voltage piezoelectric generating device with lengthened spark time | Yuji Shingu | 1982-02-09 |