Patents by Inventor Yoshio Yasuda

Yoshio Yasuda 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).

  • Process for measuring mercury concentration within hydrocarbons
    Patent number: 7422907
    Abstract: A process for measuring the mercury concentration within a hydrocarbon is provided that enables the mercury concentration to be measured simply and quickly, and with good reliability and good reproducibility. A process for measuring the mercury concentration within a hydrocarbon includes the steps of placing and weighing the hydrocarbon in a sample boat 12 containing an adsorbent that contains a metal capable of forming an amalgam with mercury, and heating the hydrocarbon inside the sample boat 12 in a combustion furnace 13, together with the adsorbent, and measuring the quantity of mercury within the thus generated gas.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: September 9, 2008
    Assignee: Sekiyushigen Kaihstsu Kabushiki Kaisha
    Inventors: Hitomi Hirano, Shinichi Okada, Naohide Tsuzuki, Yoshio Yasuda
  • Process for measuring mercury concentration within hydrocarbons
    Publication number: 20050186678
    Abstract: A process for measuring the mercury concentration within a hydrocarbon is provided that enables the mercury concentration to be measured simply and quickly, and with good reliability and good reproducibility. A process for measuring the mercury concentration within a hydrocarbon includes the steps of placing and weighing the hydrocarbon in a sample boat 12 containing an adsorbent that contains a metal capable of forming an amalgam with mercury, and heating the hydrocarbon inside the sample boat 12 in a combustion furnace 13, together with the adsorbent, and measuring the quantity of mercury within the thus generated gas.
    Type: Application
    Filed: February 4, 2005
    Publication date: August 25, 2005
    Inventors: Hitomi Hirano, Shinichi Okada, Naohide Tsuzuki, Yoshio Yasuda
  • Magnesia-alumina type spinel clinker and method of producing refractory by using same
    Patent number: 5171724
    Abstract: A magnesia-alumina type spinel clinker contains Fe.sub.2 O.sub.3 and TiO.sub.2 at boundaries between crystal grains, and a refractory produced by using the clinker has excellent corrosion resistance and cement coating properties. The refractory can thus be applied to the fields of cement rotary kiln refractories, refractories for iron making, steel making and nonferrous refining and the like.
    Type: Grant
    Filed: June 4, 1991
    Date of Patent: December 15, 1992
    Assignee: Shinagawa Refractories Co., Ltd.
    Inventors: Hitoshi Iwadoh, Takenao Hisamoto, Yoshio Yasuda, Katsunori Itoh, Mitsuteru Takemoto
  • Fire brick for a rotary kiln
    Patent number: 4340360
    Abstract: The present invention relates to a fire brick for a rotary kiln, provided on one or both large surface area portions with at least one concavity extending in the radial direction of the kiln, and opening on at least the face.The present invention further relates to a fire brick for a rotary kiln as described above, further provided with a steel plate having a concavity of dimensions which the sum of the depth of the concavity of said brick plus an expansion absorbing tolerance, and applied to a maximum surface area and lying over the concavity.The present invention still further relates to a fire brick for a rotary kiln as described above, further provided with board or asbestos, etc., on the face end of the steel plate.
    Type: Grant
    Filed: December 17, 1980
    Date of Patent: July 20, 1982
    Assignees: Veitscher Magnesitwerke-Aktiengesellschaft, Shinagawa Refractories Co., Ltd.
    Inventors: Fritz Hoedl, Morihiro Kimura, Yoshio Yasuda