Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8649988 | Service life estimation method for lead storage battery and power source system | Yasuyuki Yoshihara | 2014-02-11 |
| 8432135 | Method of controlling lead-acid battery and power supply system | Tomoya Kikuchi, Yasuyuki Yoshihara | 2013-04-30 |
| 8421406 | Charge control circuit, battery-operated device, charging apparatus and charging method | Yasuyuki Yoshihara, Tomoya Kikuchi, Kazuyuki Shimada | 2013-04-16 |
| 8344698 | Lead storage battery charging control method, charging control circuit, power source device, and lead storage battery | Tomoya Kikuchi, Yasuyuki Yoshihara, Kazuyuki Shimada | 2013-01-01 |
| 8288995 | Assembled battery charging method and battery charging system | Hiroyuki Jimbo, Tomoya Kikuchi, Yasuyuki Yoshihara | 2012-10-16 |
| 8148938 | Lead storage battery charging control method, charging control circuit, power source device, and lead storage battery | Tomoya Kikuchi, Yasuyuki Yoshihara, Kazuyuki Shimada | 2012-04-03 |
| RE40223 | Method for charging secondary battery | Kiichi Koike, Masahito Ishiwata, Hiroyuki Jimbo, Norio Saito | 2008-04-08 |
| 6275006 | Method for charging secondary battery | Kiichi Koike, Masahito Ishiwata, Hiroyuki Jimbo, Norio Saito | 2001-08-14 |