Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7285355 | Battery | Alan Ruth, Clay Kishiyama, Hiroyuki Yumoto, Hisashi Tsukamoto | 2007-10-23 |
| 6605382 | Lithium ion battery suitable for hybrid electric vehicles | Alan Ruth, Clay Kishiyama, Hiroyuki Yumoto, Hisashi Tsukamoto | 2003-08-12 |