Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6489749 | Battery state monitoring circuit having differentiating circuit | Hiroshi Mukainakano | 2002-12-03 |
| 6373227 | Charging and discharging control circuit and charging type power supply device | — | 2002-04-16 |