Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8729740 | Semiconductor relay | Narutoshi Hoshino, Yuichi Niimura, Shinsuke Taka | 2014-05-20 |
| 7382948 | Optical switch | Takanori Sugiyama, Yoshihiro Mihara, Tsutomu Shimomura, Mitsuo Ichiya, Yuichi Niimura | 2008-06-03 |