Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9088165 | Contactless method of supplying power | Hiroyoshi Yamamoto, Ryoji Watanabe | 2015-07-21 |
| 9030167 | Power source apparatus | Masao Yamaguchi, Osamu Kaite, Shinichi Itagaki, Masayuki Kobayashi, Hiroyoshi Yamamoto | 2015-05-12 |
| 7974796 | Fully-charged battery capacity detection method | — | 2011-07-05 |
| 7642007 | Battery pack and its method of manufacture | Yasushi Inoue, Hiroki Teraoka | 2010-01-05 |
| 7528578 | Power supply apparatus | Hiroyoshi Yamamoto, Masao Yamaguchi | 2009-05-05 |
| 7408325 | Battery charging method | Hiroyoshi Yamamoto, Masao Yamaguchi | 2008-08-05 |
| 7396600 | Battery pack | Atsushi Watanabe, Hiroki Teraoka, Masatsugu Naka | 2008-07-08 |
| 7264760 | Method for producing a battery pack and a battery pack produced therein | Katsuhiko Kawabata, Hiroki Teraoka, Hiroshi Osaka | 2007-09-04 |
| 6975095 | Remaining battery capacity computation system | Kozo Ooi, Masao Yamaguchi | 2005-12-13 |
| 6686722 | Battery pack containing a circuit breaker | Atsushi Watanabe, Hiroki Teraoka | 2004-02-03 |
| 6605922 | Battery pack provided with authentication circuitry | Kazuhiro Toyoda | 2003-08-12 |
| 6492058 | Battery pack | Atsushi Watanabe, Yasushi Inoue, Ryosuke Kubo, Keiji Ishihama, Yasuhiro Yamagami +1 more | 2002-12-10 |
| 6064184 | Charging circuit for charging a rechargeable battery and for preventing consumption of rechargeable battery power by the charging circuit | — | 2000-05-16 |
| 5898293 | Method of preventing battery over-discharge and a battery pack with a battery over-discharge prevention circuit | Kouji Negoro | 1999-04-27 |
| 5828202 | Battery apparatus | — | 1998-10-27 |
| 5764033 | Rechargeable battery protection circuit | — | 1998-06-09 |
| 5747969 | Method of charging a rechargeable battery with pulses of a predetermined amount of charge | — | 1998-05-05 |
| 5705911 | Charging circuit | — | 1998-01-06 |
| 5640080 | Secondary battery charger | Tooru Amazutsumi | 1997-06-17 |
| 5637979 | Rechargeable battery charging method and apparatus | Takaharu Ohira | 1997-06-10 |
| 5606240 | Battery charger | Toshiharu Kokuga, Tetsuya Okada | 1997-02-25 |
| 5585994 | Battery over-current protection circuit | Takaharu Ohira, Tetsuya Okada | 1996-12-17 |
| 5557192 | Charging apparatus with a compensation circuit | — | 1996-09-17 |
| 5477130 | Battery pack with short circuit protection | Hisashi Hashimoto | 1995-12-19 |
| 5477124 | Circuit to prevent excessive rechargeable battery discharge | — | 1995-12-19 |