Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7939204 | Separator for lead-acid battery | Yoshiaki Matsunami, Takashi Shidomi, Masaki Kita, Junpei Yamashita | 2011-05-10 |
| 6939645 | Separator for valve regulated lead acid battery and valve regulated lead acid battery | Shoji Sugiyama, Atsushi Asada | 2005-09-06 |