Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5640080 | Secondary battery charger | Tooru Amazutsumi | 1997-06-17 |
| 5637979 | Rechargeable battery charging method and apparatus | Takaharu Ohira | 1997-06-10 |
| 5606240 | Battery charger | Toshiharu Kokuga, Tetsuya Okada | 1997-02-25 |