Patents by Inventor Takako Imamoto

Takako Imamoto 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).

  • Catalyst for production of ethylene oxide
    Patent number: 5705661
    Abstract: A catalyst for oxidizing ethylene and producing ethylene oxide, said catalyst being prepared by pretreating a porous carrier with a solution containing a lithium compound and a cesium compound, thereafter, impregnating a solution containing a silver compound and a cesium compound in the pretreated porous carrier and then heat-treating the impregnated porous carrier.The use of the catalyst of this invention provides high selectivity in the production of ethylene oxide by the vapor contact oxidation of ethylene.
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: January 6, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Tomoatsu Iwakura, Takako Imamoto, Katsumi Nakashiro