Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4644232 | Method of and an apparatus for controlling a plurality of DC motors | Yuukou Nojiri, Kosho Ishizaki, Giichi Ishida | 1987-02-17 |
| 4580084 | Method and system for controlling speed of electric motor | Tadashi Takahashi, Kunio Miyashita, Hiroshi Hayashida, Shigeki Morinaga | 1986-04-01 |