Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5680027 | Battery pack including internal capacity monitor for monitoring groups of battery cells | Masaru Hiratsuka, Shigeki Murayama, Tamiji Nagai, Yasuhito Eguchi | 1997-10-21 |