Issued Patents All Time
Showing 51–51 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6008616 | Pole change induction motor and control apparatus and method for the same | Kazutoshi Nagayama, Tadashi Ashikaga, Takayuki Mizuno, Kenji Yamada, Katsuyuki Watanabe +1 more | 1999-12-28 |