Patents by Inventor Kengo Hirano

Kengo Hirano 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).

  • Optical transmission apparatus, optical transmission system, apparatus control method, and recording medium on which program for the apparatus is recorded
    Patent number: 8155532
    Abstract: A removable optical interface module is used to allow an optical transmission apparatus to flexibly respond to a change from a type of service to another that uses a different light wavelength. To this end, the optical transmission apparatus is removably provided with an optical interface module storing attribute information and includes a plurality of service implementation units implementing services using signals transmitted and received through the optical interface module. An operation selecting unit is provided which selects and causes a service implementation unit among the plurality of service implementation units that implement a service corresponding to the attribute information to operate.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: April 10, 2012
    Assignee: NEC Corporation
    Inventor: Kengo Hirano
  • OPTICAL TRANSMISSION APPARATUS, OPTICAL TRANSMISSION SYSTEM, APPARATUS CONTROL METHOD, AND RECORDING MEDIUM ON WHICH PROGRAM FOR THE APPARATUS IS RECORDED
    Publication number: 20090232516
    Abstract: A removable optical interface module is used to allow an optical transmission apparatus to flexibly respond to a change from a type of service to another that uses a different light wavelength. To this end, the optical transmission apparatus is removably provided with an optical interface module storing attribute information and includes a plurality of service implementation units implementing services using signals transmitted and received through the optical interface module. An operation selecting unit is provided which selects and causes a service implementation unit among the plurality of service implementation units that implement a service corresponding to the attribute information to operate.
    Type: Application
    Filed: March 12, 2009
    Publication date: September 17, 2009
    Inventor: KENGO HIRANO
  • Compressor control unit and gas turbine power plant including this unit
    Patent number: 7472541
    Abstract: Provided is a compressor control unit with a high response ability to changes of gas condition of a compressor (compressor suction temperature, pressure, gas specific gravity, pressure ratio of suction pressure and discharge pressure). In the control unit for a compressor that supplies gas into a gas turbine through a header tank, an inlet gas condition is measured and a load command value from a gas turbine controller is corrected to be increased or decreased corresponding to the measured inlet gas condition.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: January 6, 2009
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Kazuhiro Takeda, Kazuko Takeshita, Makoto Tsutsui, Hiroaki Yoshida, Kengo Hirano
  • Compressor control unit and gas turbine power plant including this unit
    Publication number: 20060101824
    Abstract: Provided is a compressor control unit with a high response ability to changes of gas condition of a compressor (compressor suction temperature, pressure, gas specific gravity, pressure ratio of suction pressure and discharge pressure). In the control unit for a compressor that supplies gas into a gas turbine through a header tank, an inlet gas condition is measured and a load command value from a gas turbine controller is corrected to be increased or decreased corresponding to the measured inlet gas condition.
    Type: Application
    Filed: November 7, 2005
    Publication date: May 18, 2006
    Inventors: Kazuhiro Takeda, Kazuko Takeshita, Makoto Tsutsui, Hiroaki Yoshida, Kengo Hirano