Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7813152 | Power converter | Koji Noda, Hiroshi Mochikawa, Harunobu Nukushina, Keiichi Ishida, Takahisa Endo | 2010-10-12 |
| 6674278 | AC current detection device | — | 2004-01-06 |
| 5936854 | Direct-current power supply system and air conditioner | Atsuyuki Hiruma | 1999-08-10 |
| 5664428 | Indoor unit for an air-conditioning apparatus | Akihiko Sugiyama, Katsushi Ishii, Hidenori Ashikawa, Haruo Ishikawa, Hitoshi Wakatsuki +1 more | 1997-09-09 |
| 5491393 | Drive control apparatus for brushless DC motor and driving method therefor | — | 1996-02-13 |
| 5483141 | Method and apparatus for controlling refrigerator cycle | — | 1996-01-09 |
| 5214367 | Controller for compressor driven by induction motor | — | 1993-05-25 |
| 5207071 | Current control apparatus for air-conditioning system | Masao Ozu, Harunobu Nukushina, Atsuyuki Hiruma, Kazuo Mochizuki, Toru Kubo +4 more | 1993-05-04 |
| 4849950 | Device for reducing the leakage noise of a power converter | Hiroaki Sugiura, Yuichi Ide | 1989-07-18 |
| 4825351 | AC-DC converting apparatus having power factor improving circuit utilizing a photocoupler | — | 1989-04-25 |
| 4807103 | Apparatus for controlling a PWM controlled inverter | — | 1989-02-21 |
| 4621316 | Inverter control circuit | — | 1986-11-04 |
| 4410937 | Method of controlling polyphase inverters and control circuits therefor | — | 1983-10-18 |
| 4288853 | Digital temperature control system | — | 1981-09-08 |