Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8036839 | Battery state determining apparatus | Keizo Yamada, Yoshifumi Yamada, Takashi Hara | 2011-10-11 |
| 7962300 | Battery state judging method, and battery state judging apparatus | — | 2011-06-14 |
| 7649341 | Storage battery unit | Shun Kobuse, Keizo Yamada, Kouji Ohtsu | 2010-01-19 |