Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9312569 | Additive for lead-acid battery and lead-acid battery | Akiya Kozawa | 2016-04-12 |
| 5958623 | Electrochemical cell employing a fine carbon additive | Akiya Kozawa, Atsushi Sato | 1999-09-28 |