Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10453600 | Differential mode filter | Tsutomu Kobayashi, Toshio Tomonari, Emi Ito | 2019-10-22 |
| 10374568 | Common mode filter | Tsutomu Kobayashi, Toshio Tomonari, Emi Ito | 2019-08-06 |
| 10193516 | Common mode filter | Tsutomu Kobayashi, Toshio Tomonari, Emi Ito | 2019-01-29 |