Issued Patents All Time
Showing 51–55 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8508165 | AC-DC converter, method of controlling the same, motor driver, compressor driver, air-conditioner, and heat pump type water heater | Hideki Takahara, Masato Handa, Makoto Tanikawa, Mitsuo Kashima | 2013-08-13 |
| 8498136 | AC-DC converter and compressor driving apparatus and air conditioning apparatus using the same | Kazunori Sakanobe, Hideki Takahara, Isao Kawasaki, Satoshi Azuma | 2013-07-30 |
| 7777443 | Method for providing energy saving service, method for deciding specification of electric motor, method for providing compressor version-up service, method for providing energy service using drive device for permanent magnet electric motor, compressor exchange method, and freezing/air conditioning device | Masaaki Yabe, Mamoru Kawakubo | 2010-08-17 |
| 7643296 | Motor drive circuit and outdoor unit for air conditioner | Michio Yamada, Hitosi Kawaguchi, Kazunori Sakanobe | 2010-01-05 |
| 7548443 | Three-phase PWM-signal generating apparatus | Koichi Arisawa, Kazunori Sakanobe, Masaaki Yabe | 2009-06-16 |