Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11146255 | Power supply circuit and power supply apparatus | Fumihiko Sato, Shingo Suzuki, Hiroaki Hanzawa, Masataka OKUDA | 2021-10-12 |
| 11139679 | Auxiliary power source device | Fumihiko Sato, Masataka OKUDA, Hiroaki Hanzawa | 2021-10-05 |