Patents by Inventor Tsugio Takeuchi

Tsugio Takeuchi 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).

  • Patent number: 4298795
    Abstract: Simplified method and apparatus for connecting a liquid chromatograph, particularly of a high-performance type, directly to a mass spectrometer without using any complicated devices conventionally available, for the purpose of continuous and stable mass spectrometric measurement of a liquid sample, either liquid or solution, more commonly an effluent supplied directly from a column of the liquid chromatograph or an aliquot portion thereof extracted through a simple and ordinary splitter, or any other liquid samples prepared for the mass spectrometric analysis. Such a liquid sample is first sprayed into finely divided particles by a nebulizing means mainly consisting of a double-tubing capillary so that the sample is easily vaporized, and finally introduced into an ionizing portion of the mass spectrometer in continuous and stable manner.
    Type: Grant
    Filed: May 11, 1979
    Date of Patent: November 3, 1981
    Assignee: Japan Spectroscopic Co. Ltd
    Inventors: Tsugio Takeuchi, Shin Tsuge, Yukio Hirata, Koichi Mochizuki
  • Patent number: 4087249
    Abstract: A pyrolysis apparatus comprising a pyrolysis heater and a pyrolysis tube, wherein the pyrolysis heater is of the vertical type. A sample basket being is disposed in the central portion in the lengthwise direction of the pyrolysis heater. A sample pyrolysis position is disposed inside the tube. A sample basket holder is provided at the upper end portion of the pyrolysis tube. The holder is provided with a detachable device for holding a sample basket connecting rod which facilitates free dropping of the sample basket to the sample pyrolysis position and a slit means are provided right under the central heating portion inside the pyrolysis tube so that the sample basket does not drop any more therefrom.
    Type: Grant
    Filed: December 20, 1976
    Date of Patent: May 2, 1978
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Tadaoki Okumoto, Tsugio Takeuchi, Shin Tsuge