Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12381022 | Multilayer varistor and method of manufacturing the same | — | 2025-08-05 |
| 11908599 | Varistor and method for manufacturing the same | Keiji Kawajiri, Naoki Mutou, Hironori Motomitsu, Yuji Yamagishi | 2024-02-20 |
| 11791072 | Laminated varistor | Naoki Mutou, Ken-ichi Yanai | 2023-10-17 |