Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6924625 | Battery pack and method of detecting battery pack abnormalities | Hiroki Teraoka, Masatsugu Naka, Atsushi Watanabe | 2005-08-02 |
| 5903423 | Battery pack for electric power tools | Shizuo Okano, Takao Takatsu, Kazuo Osaki | 1999-05-11 |
| 5689173 | Battery pack | Kazuo Oosaki | 1997-11-18 |