Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8058845 | Battery state monitoring circuit and battery apparatus | Atsushi Sakurai, Takakazu Ozawa, Kiyoshi Yoshikawa | 2011-11-15 |
| 7990669 | Battery protection circuit and battery device | Kiyoshi Yoshikawa, Atsushi Sakurai, Toshiyuki Koike, Kazuaki Sano | 2011-08-02 |
| 7923968 | Charge and discharge control circuit and rechargeable power supply device | Kazuaki Sano, Kiyoshi Yoshikawa, Toshiyuki Koike, Atsushi Sakurai | 2011-04-12 |