Patents by Inventor Humio Tanimoto

Humio Tanimoto 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 of removing halogenated aromatic compound from hydrocarbon oil
    Patent number: 5476987
    Abstract: A safe and reliable method of removing halogenated aromatic compounds present in small amounts in hydrocarbon oil constituted mainly by non-aromatic hydrocarbon oil. The hydrocarbon oil is contacted with a heat-resistant alkaline polar solvent in the presence of an alkaline at a temperature ranging from about 100.degree. C. to 300.degree. C., and the non-aromatic hydrocarbon oil and heat-resistant alkaline polar solvent are then separated, thereby removing the halogenated aromatic compounds from the hydrocarbon oil.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: December 19, 1995
    Assignees: Research Institute For Production Development, Mitsui & Co., Ltd.
    Inventors: Shuji Kitamura, Tsuneo Yano, Humio Tanimoto