Patents by Inventor Yasumori Fujii

Yasumori Fujii 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).

  • Method for predicting degree of corrosion of weather-resistant steel
    Patent number: 7231318
    Abstract: A predicted corrosion amount of a painted or unpainted atmospheric corrosion resistant steel is calculated by using extrinsic corrosion information including weather observation data, an amount of airborne salt, and an amount of sulfur oxide in a planned location for use where the atmospheric corrosion resistant steel is to be used, and intrinsic corrosion information on components of the atmospheric corrosion resistant steel. The weather observation data on this occasion preferably includes the annual wetness time, annual mean wind speed, and annual mean temperature. Moreover, it is preferable to calculate a corrosivity index, estimate a first-year corrosion amount of the atmospheric corrosion resistant steel and a rust stabilization index from the corrosivity index, and calculate a corrosion amount accumulated over time.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: June 12, 2007
    Assignee: Nippon Steel Corporation
    Inventors: Hiroshi Kihira, Yasumori Fujii, Yoshiyuki Harada, Takashi Kusunoki, Norihito Fujikawa, Hiroshi Takezawa, Hiromichi Yasunami, Kazumi Matsuoka
  • Method for predicting degree of corrosion of weather-resistant steel
    Publication number: 20040176934
    Abstract: A predicted corrosion amount of a painted or unpainted atmospheric corrosion resistant steel is calculated by using extrinsic corrosion information including weather observation data, an amount of airborne salt, and an amount of sulfur oxide in a planned location for use where the atmospheric corrosion resistant steel is to be used, and intrinsic corrosion information on components of the atmospheric corrosion resistant steel. The weather observation data on this occasion preferably includes the annual wetness time, annual mean wind speed, and annual mean temperature. Moreover, it is preferable to calculate a corrosivity index, estimate a first-year corrosion amount of the atmospheric corrosion resistant steel and a rust stabilization index from the corrosivity index, and calculate a corrosion amount accumulated over time.
    Type: Application
    Filed: January 12, 2004
    Publication date: September 9, 2004
    Inventors: Hiroshi Kihira, Yasumori Fujii, Yoshiyuki Harada, Takashi Kusunoki, Norihito Fujikawa, Hiroshi Takezawa, Hiromichi Yasunami, Kazumi Matsuoka