Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8841812 | Squirrel-cage induction motor | Kazuo Nishihama, Hiroyuki Mikami, Keiichiro Kaihatsu, Atsushi Abe | 2014-09-23 |
| 8816559 | Squirrel cage induction motor and squirrel cage induction motor driving system | Kazuo Nishihama, Hiroyuki Mikami, Keiichiro Kaihatsu | 2014-08-26 |
| 8816694 | Apparatus and method for detecting partial discharge at turn-to-turn insulation in motor | Kouji Obata, Keiji Fukushi, Takeshi Obata, Koichiro Saito | 2014-08-26 |
| 7663337 | Frequency converter, motor, motor drive system and maintenance method for motor drive system | Takeshi Obata, Koichiro Saito, Osamu Matsumoto, Kouji Obata | 2010-02-16 |
| 7511450 | Frequency converter, motor, motor drive system and maintenance method for motor drive system | Takeshi Obata, Koichiro Saito, Osamu Matsumoto, Kouji Obata | 2009-03-31 |
| 7408323 | Frequency converter, motor, motor drive system and maintenance method for motor drive system | Takeshi Obata, Koichiro Saito, Osamu Matsumoto, Kouji Obata | 2008-08-05 |
| 7202628 | Frequency converter, motor, motor drive system and maintenance method for motor drive system | Takeshi Obata, Koichiro Saito, Osamu Matsumoto, Kouji Obata | 2007-04-10 |
| 7112940 | Frequency converter, motor, motor drive system and maintenance method for motor drive system | Takeshi Obata, Koichiro Saito, Osamu Matsumoto, Kouji Obata | 2006-09-26 |