Issued Patents All Time
Showing 26–48 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7030590 | Apparatus for refreshing batteries | Tomoo Muramatsu, Hisakazu Okabayashi | 2006-04-18 |
| 6783886 | Battery pack with an improved cooling structure | Youichi Kato, Hisakazu Okabayashi | 2004-08-31 |
| 6603288 | Battery chargers and charging methods | — | 2003-08-05 |
| 6577104 | Apparatus and methods for determining appropriate timing for recharging rechargeable batteries | — | 2003-06-10 |
| 6566005 | Battery pack with an improved cooling structure | Yasutoshi Shimma, Junichi Masuda, Shingo Umemura | 2003-05-20 |
| 6563290 | Battery pack charging system and battery pack | Masaaki Fukumoto | 2003-05-13 |
| 6537694 | Battery pack with improved heat radiation and sealing | Masatoshi Sugiura, Youichi Kato | 2003-03-25 |
| 6502949 | Adapters for use with an electric power tool | Toru Horiyama, Norifumi Niwa | 2003-01-07 |
| 6476584 | Battery charger and battery charging method | — | 2002-11-05 |
| 6433517 | Battery charger and charging method | — | 2002-08-13 |
| 6433515 | Method of updating the charging characteristics of a charging device and a battery | — | 2002-08-13 |
| 6404167 | Battery charging device | — | 2002-06-11 |
| 6373228 | Battery charging device | — | 2002-04-16 |
| 6362600 | Battery charging device | — | 2002-03-26 |
| 6278261 | Battery charging device and charging method thereof | — | 2001-08-21 |
| 6275009 | Battery charging device | Ariya Noda | 2001-08-14 |
| 6225786 | Battery charger | Tomoo Muramatsu | 2001-05-01 |
| 6204641 | Battery charger and charging method | — | 2001-03-20 |
| 6204640 | Battery charger and battery charging method | — | 2001-03-20 |
| 6191560 | Battery charger | — | 2001-02-20 |
| 6176351 | Double deck elevator allocation controlling apparatus | Tetsuji Ikeda, Mitsuyo Yamaura | 2001-01-23 |
| 6124698 | Battery charger | — | 2000-09-26 |
| 6075347 | Battery charger and charging method | — | 2000-06-13 |