Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8355226 | Ground fault sensing device | Takeshi Yoshida | 2013-01-15 |
| 7294988 | Synchronous motor drive unit and a driving method thereof | Toshiyuki Ajima, Hideki Miyazaki, Yukio Kawabata, Kiyoshi Sakamoto, Osamu Koizumi | 2007-11-13 |
| 7271557 | AC motor driving apparatus and method of controlling the same | Toshiyuki Ajima, Hideki Miyazaki, Yoshitaka Iwaji, Kinya Nakatsu | 2007-09-18 |
| 4742484 | Data transmission apparatus having two unidirectional transmission connection lines transmitting data from slave stations located downstream to a master station at high speed | Yoshiaki Takahashi, Toshio Ozawa | 1988-05-03 |
| 4642760 | Status-change data gathering apparatus | Yoshiaki Takahashi | 1987-02-10 |