Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12413070 | Direct-current bus control system | Katsuhiko Tsuno, Katsushi Fujii, Satoshi Wada | 2025-09-09 |
| 12176707 | DC bus control system | Katsuhiko Tsuno, Katsushi Fujii, Satoshi Wada | 2024-12-24 |
| 11133673 | Direct current bus control system | Daiji YAMASHITA, Masakazu Sugiyama, Katsuhiko Tsuno, Katsushi Fujii, Satoshi Wada | 2021-09-28 |