Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6448743 | Rechargeable battery pack | Yoshinao Sano, Nobuo Shiojima | 2002-09-10 |
| 6428925 | Battery pack comprising hollow portion and power tool using the same | Kazuta Takeno, Yukinori Akamoto, Haruhiko Tanaka, Kazumi Sato, Hiroshi Kanasaki | 2002-08-06 |