Issued Patents 2003
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6664761 | Battery voltage detection device | Hirofumi Yudahira | 2003-12-16 |
| 6639408 | Battery voltage measurement device | Hirofumi Yudahira, Ichiro Maki | 2003-10-28 |
| 6639409 | Battery voltage measurement device | Ichiro Maki, Hirofumi Yudahira | 2003-10-28 |
| 6621273 | Voltage measurement apparatus | Masahiro Takada | 2003-09-16 |
| 6603287 | Device for determining physical quantity of battery pack | Ichiro Maki | 2003-08-05 |