Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5617009 | Rechargeable battery charging circuit which sets supplemental charging capacity according to ambient temperature | Toshiharu Kokuga, Takanao Matsumoto, Hiroaki Sakurai | 1997-04-01 |