Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7073639 | Rotational machine | Hitoshi Ota, Akira Hashimoto, Shinichiro Yoshida, Yuji Nakahara, Naoki Hashiguchi +1 more | 2006-07-11 |
| 7073640 | Brake structure of traction machine | Hitoshi Ota, Akira Hashimoto, Kazuhiro Shono, Naoki Kajita, Naoki Hashiguchi | 2006-07-11 |
| 6744341 | Polarizing device for a permanent magnet rotor | Taizo Iwami, Naoki Kajita | 2004-06-01 |