Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6074782 | Lead storage battery containing a negative electrode active substance including a negative electrode additive | Katsumi Yamada, Takaki Kamio, Masanobu Kawamura | 2000-06-13 |
| 5709966 | Battery | Kazunobu Sawada, Takaki Kamio, Katsumi Yamada, Yuuki Fujitani, Masatoshi Miwa | 1998-01-20 |