Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6794876 | Method and device for estimating open circuit voltage of battery | Tomohiro Kawaguchi | 2004-09-21 |
| 6696818 | Method and unit for computing charging efficiency and charged electrical quantity of battery | Youichi Arai | 2004-02-24 |