Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6979912 | Engine-driven generator | Takahide Sugiyama, Yoshinori Yamada | 2005-12-27 |
| 6975042 | Engine-driven generator | Yoshinori Yamada, Takahide Sugiyama, Takashi Fujita, Hitoshi Kashima, Hisamichi Naito | 2005-12-13 |