Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8197967 | Long life and low corrosion lead storage battery with a separator including silica and oil | Kazuhiro Sugie, Kazuhiko Shimoda, Tsunenori Yoshimura, Shinichi Iwasaki, Shoji Horie +1 more | 2012-06-12 |
| 8071239 | Long life and low corrosion lead storage battery | Kazuhiro Sugie, Kazuhiko Shimoda, Tsunenori Yoshimura, Shinichi Iwasaki, Shoji Horie +2 more | 2011-12-06 |
| 6475665 | Lead acid storage battery | Hiroshi Okamoto, Kazuyoshi Yonezu | 2002-11-05 |