Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8980467 | Storage battery | Yasuhide Nakayama, Eiji Hojo, Hirofumi Umetani, Masashi Shiota, Shinichi Egami | 2015-03-17 |
| 8652669 | Lead-acid battery | Yasuhide Nakayama, Eiji Hojo, Masashi Shiota, Shinichi Egami | 2014-02-18 |