Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8323811 | Lead acid storage battery | Kazuma Saito, Kenji Hirakawa | 2012-12-04 |
| 8119270 | Lead acid battery with liquid sensor in lid | Wataru Mashiko, Mitsunori Maeda, Hiroyasu Kawada, Takashi Akimoto, Tomohiro Imamura | 2012-02-21 |
| 7323848 | Battery charging state arithmetic operation device for calculating charging state of battery, and battery charging state arithmetic operation method | Shinji Fujihara, Kiyoharu Anzai, Makoto Wanezaki, Hideji Nakamura, Toshiaki Hayashi | 2008-01-29 |