Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12374989 | Switching control circuit and power supply circuit | Ryuji Yamada | 2025-07-29 |
| 12166413 | Integrated circuit and power supply circuit | Ryuji Yamada | 2024-12-10 |
| 12081116 | Switching control circuit and power supply circuit | Ryuji Yamada | 2024-09-03 |
| 12051964 | Current detection circuit including non-linear circuit and power supply circuit containing the same | Ryuji Yamada | 2024-07-30 |
| 11876441 | Switching control circuit and resonant converter | Ryuji Yamada | 2024-01-16 |
| 11764667 | Switching control circuit and power factor correction circuit | Ryuji Yamada | 2023-09-19 |
| 11705814 | Switching control circuit and LLC converter | Ryuji Yamada | 2023-07-18 |
| 11515782 | Switching control circuit and power supply circuit | Ryuji Yamada | 2022-11-29 |
| 11159085 | Integrated circuit and switching circuit | Ryuji Yamada, Takato Sugawara | 2021-10-26 |