Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6340880 | Method of protecting a chargeable electric cell | Yukihiro Terada, Hiroshi Nagaoka | 2002-01-22 |
| 6184658 | Battery pack protective circuit with external terminals on opposite side of part mounting surface of circuit board | Masaki Mori | 2001-02-06 |
| 6031357 | Battery charge control circuit | Katsuaki Yano | 2000-02-29 |
| 5886502 | Cell balance circuit having rechargeable cells | — | 1999-03-23 |
| 5705913 | Overdischarge detection device and overdischarge prevention device for a chargeable electric cell, operable with a variable threshold voltage to prohibit discharge in accordance with relative weight of a load | Masaru Takeuchi, Tomonori Tsuchiya | 1998-01-06 |
| 5617010 | Overcharge and overdischarge protection for a chargeable electric cell operable with a reduced current consumption | Masaru Takeuchi | 1997-04-01 |
| 5526215 | Secondary cell protection unit for protecting a secondary cell from overdischarge or overcharge without excessive power consumption | Masaru Takeuchi | 1996-06-11 |
| 5519563 | Protection circuit for electric cells from overcharge and overdischarge using a plurality of detection units of a single chip type | Kyozo Makime | 1996-05-21 |