Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7335439 | Hermetically sealed battery | Katsuya Kawano, Motoo Tadokoro | 2008-02-26 |
| 6356051 | Battery pack and PTC element incorporated in the battery pack | Takashi Hasunuma, Atsushi Watanabe, Kazuo Osaki | 2002-03-12 |