Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5896025 | Secondary battery protection device from overcharge/overdischarge | Takeshi Yamaguchi, Shinji Tanaka, Takehisa Yokohama, Kouichi Horisaki, Eiji Matsumasa | 1999-04-20 |