Patents by Inventor Tetsuo Hida

Tetsuo Hida 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).

  • Electric power converting system
    Patent number: 8896149
    Abstract: An electric power converting system includes a common DC power supply, and a plurality of inverter sets operated mutually independently to one another, and supplied with electric power from the common DC power supply. Each inverter set has an inverter circuit and a main circuit capacitor. The system further includes a plurality of first and second switching circuits. Each first switching circuit is provided between the common DC power supply and each inverter set, and each second switching circuit is provided in each inverter set for discharging charges in the main circuit capacitor.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: November 25, 2014
    Assignee: Fuji Electirc Co., Ltd.
    Inventor: Tetsuo Hida
  • Electric power converting system
    Publication number: 20110248564
    Abstract: An electric power converting system includes a common DC power supply, and a plurality of inverter sets operated mutually independently to one another, and supplied with electric power from the common DC power supply. Each inverter set has an inverter circuit and a main circuit capacitor. The system further includes a plurality of first and second switching circuits. Each first switching circuit is provided between the common DC power supply and each inverter set, and each second switching circuit is provided in each inverter set for discharging charges in the main circuit capacitor.
    Type: Application
    Filed: March 10, 2011
    Publication date: October 13, 2011
    Applicant: FUJI ELECTRIC SYSTEMS CO., LTD.
    Inventor: Tetsuo Hida
  • Method for incineration of organic chlorine compound and incinerator used therefor
    Patent number: 4231303
    Abstract: Incineration of an organic chlorine compound is effected by mixing the compound with water or a proper aqueous solution, fluidizing the resultant aqueous mixture and subjecting the fluidized mixture to combustion. For this incineration is used an incinerator which is provided with at least one inlet for admitting the organic chlorine compound and water or the aqueous solution and is adapted to fluidize the mixture of the organic chlorine compound with water or the aqueous solution.
    Type: Grant
    Filed: October 31, 1978
    Date of Patent: November 4, 1980
    Assignee: Showa Denki K.K.
    Inventors: Masayoshi Fujiu, Tetsuo Hida