Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5637981 | Method for charging a secondary battery and charger used therefor using constant current and constant voltage | Hitoshi Akiho | 1997-06-10 |
| 5576608 | Method for charging secondary battery and charger used therefor | Hitoshi Akiho | 1996-11-19 |