Patents by Inventor Hironobu Mizobe

Hironobu Mizobe has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Inverter driven compressor operation method and compressor drive device
    Patent number: 8182245
    Abstract: A boot capacitor that functions as an operating power supply for a high-arm-side transistor provided in an inverter has to be charged prior to normal operation of a motor. This operation of charging the boot capacitor is performed at a carrier frequency that is lower than a carrier frequency for the normal operation.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: May 22, 2012
    Assignee: Daikin Industries, Ltd.
    Inventors: Hirohito Maeda, Keisuke Shimatani, Masakazu Katou, Takeomi Ukai, Hironobu Mizobe, Nobuki Kitano
  • Inverter Compressor Operating Method and Compressor Driving Device
    Publication number: 20100232983
    Abstract: A boot capacitor that functions as an operating power supply for a high-arm-side transistor provided in an inverter has to be charged prior to normal operation of a motor. This operation of charging the boot capacitor is performed at a carrier frequency that is lower than a carrier frequency for the normal operation.
    Type: Application
    Filed: January 7, 2008
    Publication date: September 16, 2010
    Inventors: Hirohito Maeda, Keisuke Shimatani, Masakazu Katou, Takeomi Ukai, Hironobu Mizobe, Nobuki Kitano