Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6716554 | Battery case, cover, and feedthrough | Hisashi Tsukamoto, Naoki Ota | 2004-04-06 |
| 6677076 | Electric storage battery construction and method of manufacture | David Skinlo, Hisashi Tsukamoto, Mikito Nagata | 2004-01-13 |