Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9347501 | Drive power transmission system | Shigeru Ishii, Tsuyoshi Yamanaka, Tomoharu Fujii | 2016-05-24 |
| 9062721 | Drive force transmission device | Masakazu Akahane, Hideaki Inokuchi, Shigeru Ishii | 2015-06-23 |