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Hitachi Appliances Inc patents

Recent patent applications related to Hitachi Appliances Inc. Hitachi Appliances Inc is listed as an Agent/Assignee. Note: Hitachi Appliances Inc may have other listings under different names/spellings. We're not affiliated with Hitachi Appliances Inc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "H" | Hitachi Appliances Inc-related inventors

Air conditioner

In the control device 12 of the indoor unit 11, a plurality of communication means 14a to 14c having different communication speeds; communication speed recognizing means 18 for recognizing whether or not a communication line 15 from an outdoor unit 10 is connected to any of the communication means, from... Hitachi Appliances Inc

Permanent-magnet dynamo-electric machine and compressor using the same

A rotor is formed such that a concave section is formed on the q axis and a gap between the concave section and a tooth of a stator is larger than a gap between an outer circumferential section and the tooth on the d axis. The concave section is formed... Hitachi Appliances Inc

Dc power supply unit and air conditioner using same

A DC power supply unit is provided that allows for improving efficiency and reducing harmonic currents. A DC power supply unit includes: a bridge rectification circuit having diodes and MOSFETs; a reactor that is arranged between the AC power supply and the bridge rectifier circuit; a smoothing capacitor that is... Hitachi Appliances Inc

Air conditioner and defrosting operation method therefor

A hot gas bypass circuit that connects a discharge side of the compressor and a portion between the heat source side heat exchanger and the expansion valve, an on-off valve that opens and closes a channel of the hot gas bypass circuit, and a control device performing control to select... Hitachi Appliances Inc

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This listing is an abstract for educational and research purposes is only meant as a recent sample of applications filed, not a comprehensive history. is not affiliated or associated with Hitachi Appliances Inc in any way and there may be associated servicemarks. This data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Hitachi Appliances Inc with additional patents listed. Browse our Agent directory for other possible listings. Page by