Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5642032 | Charging method for a battery assembly including a plurality of secondary batteries | — | 1997-06-24 |
| 5617009 | Rechargeable battery charging circuit which sets supplemental charging capacity according to ambient temperature | Mitsunori Takao, Takanao Matsumoto, Hiroaki Sakurai | 1997-04-01 |
| 5608305 | Method and apparatus for compulsory discharging lithium-ion battery to prevent quality degradation | — | 1997-03-04 |
| 5606240 | Battery charger | Mikitaka Tamai, Tetsuya Okada | 1997-02-25 |
| 5596259 | Method of charging a secondary battery | Takayuki Mino | 1997-01-21 |